3 2016/08/15: Version 11.4.0 - Sebastien Godard (sysstat <at> orange.fr)
4 * sar: Workaround for I/O and transfer rates statistics which may
5 be wrongly calculated if a filesystem is unmounted [11.2.6].
6 * SVG: Fix how bar graphs are displayed for filesystems statistics
7 in order to not loose the first sample.
8 * SVG: Change graphs order to be consistent with the output of sar.
9 * SVG: Change some graphs's title.
10 * Replace strcpy() with strncpy() to avoid buffer overflows [11.2.6].
11 * Fixed unsigned compared against 0 problem (CID#127473) [11.2.6].
14 2016/06/24: Version 11.3.5 - Sebastien Godard (sysstat <at> orange.fr)
15 * SVG: Add SVG output for ICMP{v4,v6}, IPv6, UDPv6, voltage inputs,
16 NFS client, NFS server, disks, filesystems and FC HBA statistics.
17 * SVG: Add SVG output for IPv4, ICMPv4, TCPv4, IPv6 and ICMP
18 network errors statistics.
19 * SVG: Make sure graduations are properly aligned with grid.
20 * SVG: Add oneday option to control SVG output.
21 * SVG: Fix skipempty option.
22 * [Peter Schiffer]: Stricter check for file_magic->header_size [11.2.5].
23 * [Peter Schiffer]: tapestat: Various fixes [11.2.5].
24 * [Esteban Fallas]: Check for undefined UID variable in sysstat script
26 * [Carsten Grohmann]: Unify description of the tps value in the sar
27 manual page for -b and -d flags [11.2.5].
28 * sadf manual page updated.
30 2016/05/14: Version 11.3.4 - Sebastien Godard (sysstat <at> orange.fr)
31 * SVG: Add SVG output for fan speed and temperature sensors
32 statistics, I/O and transfer rate statistics, kernel tables
33 statistics, hugepages utilization statistics, IPv4 and IPv6
34 network sockets statistics, UDPv4, TCPv4 and IPv4 network statistics.
35 * SVG: Add skipempty and autoscale options to control SVG output.
36 * sadf and sar manual pages updated [11.2.4].
37 * NLS translation updated.
38 * Various cosmetic changes in code [11.2.4].
40 2016/04/09: Version 11.3.3 - Sebastien Godard (sysstat <at> orange.fr)
41 * SVG: Add SVG output for CPU statistics, CPU frequency statistics,
42 memory and swap statistics, and queue length and load average
44 * SVG: Make SVG code independent from the locale used to display
46 * SVG: Fix possibly truncated SVG code.
47 * SVG: Make sure that a minimum interval value is used on X and Y
49 * [Peter Portante]: Quick fix for cprintf_u64 non-uintv64_t [11.2.3].
50 * NLS translations updated.
52 2016/03/13: Version 11.3.2 - Sebastien Godard (sysstat <at> orange.fr)
53 * sadf: Add SVG output for paging statistics, network interfaces
55 * SVG: Specify charset encoding in SVG header.
56 * SVG: Fix invalid use of attribute vector-effect.
57 * sar: Fix possible confusion between network interfaces that
58 could happen when a new interface was registered and appeared
59 in the middle of the list in the /proc/net/dev file [11.2.2].
60 * sar: Fix possible compatibility issues between sysstat versions
62 * [Y. Namiki]: sar: Print time in the ISO format if
63 S_TIME_FORMAT=ISO [11.2.2].
64 * mpstat/pidstat: Print time in the ISO format if S_TIME_FORMAT=ISO
66 * [Steve Kay]: Disable NLS if any gettext components are
68 * [Steve Kay]: sadf: Fix several typos in SVG output.
69 * [Steve Kay]: Fix tapestat manual page typos [11.2.2].
70 * [Peter Schiffer]: Add new SP_VALUE_100() macro which limits
71 value to 100% for CPU statistics displayed by pidstat [11.2.2].
72 * sar, sadf, pidstat and mpstat manual pages updated.
74 2016/02/21: Version 11.3.1 - Sebastien Godard (sysstat <at> orange.fr)
75 * sadf: Add new SVG (Scalable Vector Graphics) output format.
76 This option enables the user to display fancy graphs in a
77 web brower using the data collected by sar/sadc!
78 * sar/sadf: Major code refactoring.
79 * sadf: Don't display the JSON fchosts tag when no statistics
80 data exist for Fibre Channel [11.2.1].
81 * README file converted to Markdown format [11.2.1].
82 * [Peter Schiffer]: Convert CREDITS file to utf-8 [11.2.1].
83 * [Peter Schiffer]: Update license text [11.2.1].
84 * sadf manual page updated.
86 * Update README file and copyright messages [11.2.1].
87 * NLS updated [11.2.1].
89 2015/12/27: Version 11.2.0 - Sebastien Godard (sysstat <at> orange.fr)
90 * mpstat: Code refactoring (better handle some special borderline
91 cases for per-processor interrupts statistics).
92 * mpstat: Option -I now accepts a list of comma-separated
94 * sar: Fix color output for %temp and %in fields.
95 * sadf: Fix bug preventing sadf from converting a data file with
97 * sadc: Fix insecure data handling, really (CID #29720).
98 * [Peter Schiffer]: Increase NR_CPUS to match kernel upstream.
99 * sar: Check minimum size of sa data files header (CID #29719).
100 * sadc: Fix default number of frequencies for A_PWR_WGHFREQ
102 * pidstat: Define new SCHED_DEADLINE scheduling policy.
103 * Remove obsolete nfsiostat-sysstat command.
104 * mpstat manual page updated.
107 2015/10/23: Version 11.1.8 - Sebastien Godard (sysstat <at> orange.fr)
108 * Add support for color customization.
109 * Add color support for pidstat, tapestat and cifsiostat commands.
110 * Define values "always", "never" and "auto" for S_COLORS
111 environment variable.
112 * sar: Remove extra line of statistics displayed when SIGINT is
114 * Add missing va_end() statements (CID #113539, #113540, #113541,
116 * Fix possible NULL pointer dereference in SREALLOC macro (CID
118 * sadc: Fix untrusted value used as argument (CID #29720) [11.0.8].
119 * sadc: Fix another insecure data handling (CID #29720).
120 * sar/sadc: Set an upper limit for each kind of item that sar/sadc
122 * Manual pages updated for iostat, mpstat, sar, pidstat, tapestat
123 and cifsiostat commands.
124 * Update librdsensors.a target in Makefile [11.0.8].
126 2015/09/20: Version 11.1.7 - Sebastien Godard (sysstat <at> orange.fr)
127 * Add color support for mpstat, iostat and sar commands.
128 * [Peter Schiffer]: Fix problem with pidstat output values > 100%
130 * [Shane Seymour]: tapestat: Fix issue when st driver is unloaded
132 * [Christian Neukirchen]: Fix header files included in tapestat.
133 * Make sysstat build on musl (non-glibc) environment.
134 * tapestat: Check fscanf() return values.
135 * [Alexis Solanas]: Fix issue with iostat not showing the full
136 device name [11.0.7].
137 * sa2: DATE couldn't be set when DATE_OPTS variable was empty.
139 * Add sa2 option to avoid sarDD report generation.
140 * [Julian Taylor]: sargraph2: Fix MB/s units and help typo.
141 * sysstat(5), iostat, mpstat and sar manual pages updated.
142 * NLS: Sync'd with Translation Project.
143 * CREDITS file updated.
145 2015/08/24: Version 11.1.6 - Sebastien Godard (sysstat <at> orange.fr)
146 * [Shane Seymour]: Added new "tapestat" command aimed at
147 displaying statistics for tape drives.
148 * [Shane Seymour]: Added tapestat manual page.
149 * Check /proc/net/snmp format to collect ICMP statistics at
150 their right positions [11.0.6].
151 * sadc: Fix untrusted value used as argument.
152 * sa_conv.c: Fix ressource leak.
153 * ioconf.c: Fix several ressource leaks [11.0.6].
154 * mpstat: Fix alignment output, really [11.0.6].
155 * [Sampsa Kiiskinen]: Fix bug in isag [11.0.6].
156 * iostat's option -T renamed to -H.
157 * iostat manual page updated.
159 * CREDITS file updated.
161 2015/06/12: Version 11.1.5 - Sebastien Godard (sysstat <at> orange.fr)
162 * [Steve Kay]: sar: Added fibre channel HBA statistics.
163 * [Steve Kay]: Replace non printable characters in comments
164 displayed by sar/sadf.
165 * [Peter Schiffer]: Fixed and simplified some math expressions
166 in pr_stats.c [11.0.5].
167 * [Peter Schiffer]: ioconf.c: Check value of variable "major"
168 read from file [11.0.5].
169 * [Peter Schiffer]: ioconf.c: Use strncpy instead of strcpy [11.0.5].
170 * sar: Fixed untrusted loop bound [11.0.5].
171 * sadc: Fixed time-of-check, time-of-use race condition.
172 * [Vitezslav Cizek]: Assume device-mapper is not running when
173 it is not found in /proc/devices.
174 * sar: Added option --sadc. This option indicates which data
175 collector will be called by sar.
176 * sadf: Fixed null pointer dereference which could happen with a
177 malformed system activity datafile.
178 * cifsiostat: Fixed possible integer overflowed argument [11.0.5].
179 * sar manual page updated.
181 * DTD and XSD documents updated.
184 2015/04/07: Version 11.1.4 - Sebastien Godard (sysstat <at> orange.fr)
185 * Makefile: sysstat init script may sometimes be called rc.sysstat.
186 So use that name when needed [11.0.4].
187 * pidstat: Don't stop if gtime and cgtime fields are unavailable
189 * sar: Fix output with filesystems having more than MAX_FS_LEN
190 characters in length.
191 * Updated DTD and XSD documents. XML document, as displayed by
192 sadf -x, should now be properly validated against them.
193 * [Peter Schiffer]: Replace spaces with tabs in Makefile.in [11.0.4].
194 * [Peter Schiffer]: Create appropriate directories in DESTDIR if
196 * [Peter Schiffer]: Fixed installation of systemd/cron files on
197 systems w/o systemd [11.0.4].
198 * [Peter Schiffer]: Don't look in weird places for programs during
199 configuration [11.0.4].
200 * [Steve Kay]: sar: Added option to display mountpoint names instead
202 * [Steve Kay]: sar/sadf: Permit hh:mm:ss as well as hh:mm.
203 * [Steve Kay]: Fix mpstat SCPU alignment output [11.0.4].
204 * [Steve Kay]: Fix unproperly indented line in sar -h output.
205 * Makefile: Call chkconfig only if $(COPY_ONLY) is set to no [11.0.4].
206 * sysstat(5) manual page updated [11.0.4].
207 * [Dimitrios Apostolou]: Updated sargraph tool.
208 * [Dimitrios Apostolou]: Updated sa2 script to support more compression
209 formats. Simplify logic with regexes.
210 * [Dimitrios Apostolou]: YESTERDAY variable can now be changed in sysstat
211 config file (/etc/sysconfig/sysstat).
212 * [Dimitrios Apostolou]: By default sa2 now generates yesterday's summary.
213 * CREDITS file updated.
215 2015/02/13: Version 11.1.3 - Sebastien Godard (sysstat <at> orange.fr)
216 * sar/sadc: Added new metrics from /proc/meminfo to memory
218 * sadf: Update output formats to take into account new memory
220 * [Peter Schiffer]: Fixes from static analysis.
221 * [Peter Schiffer]: Prefer xz compression program when compressing
222 sa data files [11.0.3].
223 * [Peter Schiffer]: Portable way to detect 64 bit OS in configure
225 * [Vasant Hegde]: sadc: Fix possible race condition in signal
226 handler code [11.0.3].
227 * Fix description of %util in iostat and sar manual pages [11.0.3].
228 * Fix wrong size used in upgrade_magic_section() function.
229 * Add new sadc_options variable to configure script.
230 * Rename --disable-man-group option to --disable-file-attr. This
231 configure's option prevents the build process from setting
232 attributes of files being installed.
233 * Make sure that no crontabs are activated when configure's option
234 --enable-copy-only is used [11.0.3].
236 * RPM spec file updated.
237 * sar manual page updated.
238 * sadc manual page updated [11.0.3].
239 * CREDITS file updated.
240 * Code cleaned [11.0.3].
242 2014/10/19: Version 11.1.2 - Sebastien Godard (sysstat <at> orange.fr)
243 * [Robert Elliott]: Added irqtop command. irqtop monitors
244 differences in /proc/interrupts and /proc/softirqs per CPU,
245 along with CPU statistics. irqtop is currently in the contrib
247 * [Lance Shelton]: Added irqstat command, a better way to watch
248 /proc/interrupts, designed for NUMA systems with many
250 * [Vasant Hegde]: sadc: Don't send SIGINT signal if parent
251 process is already dead [11.0.2].
252 * sadc: Make sure that functions used to count items (CPU,
253 network interfaces, etc.) are called only once.
254 * sar and sadf now tell the user when they cannot read a file
255 because the endian format doesn't match.
256 * Fixed incomplete sar and sadf output when end time (specified
257 with option -e) crosses 24 hour boundary [11.0.2].
258 * cifsiostat/nfsiostat: Fix output on single core CPU [11.0.2].
259 * pidstat didn't handle processes with spaces in their name
260 properly. This is now fixed [11.0.2].
262 * CREDITS file updated.
264 2014/08/30: Version 11.1.1 - Sebastien Godard (sysstat <at> orange.fr)
265 * Added option -c to sadf: This option enables the user to
266 convert an sa datafile with an old format (at least 9.1.6)
267 to the up-to-date format (11.1.1 as of today).
268 * Update sadf -H output to print datafile date and tell whether
269 this file has been converted from an old datafile or not.
270 * Added option -[0-9]+ to sadf to show data of that days ago
272 * Use statvfs() system call instead of deprecated statfs() to
273 get filesystems statistics with sar [11.0.1].
274 * sar: Stricter syntax check [11.0.1].
275 * Remove unneeded include file in sa_common.c [11.0.1].
276 * [Kosaki Motohiro]: Update workaround for 32bit CPU counters
278 * Define unknown scheduling policies in pidstat.h [11.0.1].
279 * [Ivana Varekova]: Test return value for fgets/fscanf calls
281 * Makefile updated: Follow symlinks when creating the tarballs
283 * sadf manual page updated [11.0.1].
285 2014/06/17: Version 11.0.0 - Sebastien Godard (sysstat <at> orange.fr)
286 * [Cedric Marie]: pidstat now displays task scheduling priority
287 and policy along with task switching activity (-w option).
288 * [Cedric Marie]: pidstat: Add option -G to filter processes
290 * pidstat: Update variables type to be consistent with recent
292 * sadc/sar/sadf: The standard daily data files may now be
293 named saYYYYMMDD instead of saDD. Option -D has been added
294 to sar and sadc to tell them to write to data files under the
296 * sadc/sar/sadf: Take into account alternate locations for
297 standard daily data files.
298 * sa1 and sa2 scripts updated: Don't create a tree of directories
299 any more if HISTORY is greater than 28. Use saYYYYMMDD
301 * sa1 and sa2 scripts now take into account two new variables:
302 SA_DIR (directory where sa and sar files are located) and
303 ZIP (compression program to use).
304 * Make sysstat init script source the functions library
305 * Fix possible buffer overflow.
306 * Small fix with sadc's option -S: It is now possible to enter
307 several comma separated values.
308 * Don't install crontabs when using systemd timer units.
309 * Manual pages updated.
311 * NLS updated. Galician and Hungarian translations added.
312 * CREDITS file updated.
314 2014/03/18: Version 10.3.1 - Sebastien Godard (sysstat <at> orange.fr)
315 WARNING: Daily data files format has changed, and is *not*
316 compatible with the previous one! [0x2173]
317 * sar/sadc/sadf: Now take into account a change of CPU count
318 in datafiles. The number of CPU is displayed in the RESTART
320 * DTD and XSD documents updated.
321 * [Tomasz Torcz]: Add systemd timer units replacing cronjobs.
322 * [Mike Kazantsev]: Fix output of sadf -j with file-utc-time present.
323 * [Peter Portante]: sa2 script now also catches 'xz' compressed
325 * Rename nfsiostat to nfsiostat-sysstat and indicate it is now
326 obsolete. An nfsiostat command is already included in the
328 * When attempting to use a non existent daily datafile, sar and
329 sadf tell the user to check if data collecting is enabled.
330 * sadf -H now displays the number of activities in file.
331 * nfsiostat manual page updated.
333 * README file updated.
336 2014/01/19: Version 10.2.1 - Sebastien Godard (sysstat <at> orange.fr)
337 * Added new --enable-copy-only option to configure script.
338 This option may be useful when creating sysstat package to
339 make sure that files are only copied to $DESTDIR and that
340 no service is activated (eg. for distro using systemd).
341 * pidstat: Add a new metric to pidstat I/O statistics:
342 per-task block I/O delays.
343 * Take $DESTDIR variable into account when installing sysstat
344 service used by systemd.
345 * sadf -H, sadf -j and sadf -x now also display the file
347 * Use sizeof() instead of hardcoded size values.
348 * pidstat manual page updated.
352 2013/11/03: Version 10.2.0 - Sebastien Godard (sysstat <at> orange.fr)
353 * pidstat: Added option -v, enabling the user to display the
354 number of threads and file descriptors associated with tasks.
355 * Stack stats displayed by "pidstat -s" were sometimes not
356 displayed for some processes although values had changed.
358 * pidstat can now display stats since system startup for a list
359 of processes given on the command line.
360 * pidstat -d now displays -1 for I/O stats values when the
361 process I/O file cannot be read (permission denied or file
363 * mpstat and pidstat commands now exit immediately when they
364 get a SIGINT signal during the first interval of time.
365 * [Alexander Troosh]: mpstat: Take into account the highest
366 processor number in mpstat output.
367 * Rearrange options displayed by sar -h (upper case option
368 should be displayed before its lower case counterpart).
369 * Added "prealloc" variable to configure script. This variable
370 will determine the size of data files created by sar/sadc.
371 * Added xz-compressed target to Makefile.
372 * pidstat manual page updated.
376 2013/09/13: Version 10.1.7 - Sebastien Godard (sysstat <at> orange.fr)
377 * New metric added to sar network devices statistics: %ifutil
378 now gives the network interface utilization percentage.
379 * Now use a lightweight static library having only the necessary
380 functions to compile sysstat commands. This results in a
381 size 25% to almost 45% smaller for some commands.
382 * [Kevin Johnson]: Rewrite rule for librdstats.a in Makefile
383 to allow parallel execution.
384 * [Peter Schiffer]: Fix wrong permissions for data file created
385 by sa1 script when HISTORY is greater than 28.
386 * [Muneyuki Noguchi]: Use %u instead of %d for unsigned int
388 * [Muneyuki Noguchi]: Close file descriptor before exit in
390 * [Muneyuki Noguchi]: Remove redundant NULL checks.
391 * [James Fraser]: Replace comma with semi-colon in filesystems
392 statistics header line.
393 * Fixed sar log file corruption in odd Feb 28th edge-case.
394 * Filesystems statistics (displayed by sar -F) are now collected
395 by sadc only if option "-S XDISK" is used.
396 * sar now collects all statistics (including partitions ones)
397 when data are saved into a file with option -o.
398 * [Yan Gao]: Update iostat manual page: Don't say that device
399 saturation occurs when %util is close to 100% for devices
400 serving multiple requests simultaneously.
401 * Documentation fixes and updates.
402 * Several manual pages updated (sar, sadc, sadf, sa1, sa2, sysstat).
405 2013/06/09: Version 10.1.6 - Sebastien Godard (sysstat <at> orange.fr)
406 * Filesystems statistics added to sar/sadc/sadf. These stats can
407 be displayed with option -F.
408 * DTD and XSD documents updated.
409 * Code cleaned: Removed several unused constants from header files.
410 * Sysstat command options can now be 'collapsed' (grouped) when
411 not followed by an argument. So it's now possible for example
412 to enter 'iostat -px 2 5' since no device name is given to
413 option -p. This also concerns pidstat option -U.
414 * Fixed type for "memfree" and "intr" elements in XSD document.
415 * Removed functions used to count number of items from rd_stats.c
416 and put them in a separate file (count.c).
417 * NLS updated (da, hr, cs). Turkish translation added.
418 * Typos fixed. README file updated.
419 * Yet another cosmetic fix in pidstat manual page. Sar and
420 mpstat manual pages updated.
422 2013/03/31: Version 10.1.5 - Sebastien Godard (sysstat <at> orange.fr)
423 * mpstat now takes into account every interrupt per processor
424 so that their number adds up to the number displayed for CPU "all".
425 * [Peter Schiffer]: systemd unit file couldn't be installed
426 because PKG_PROG_PKG_CONFIG macro wasn't expanded in configure
427 script. This is now fixed.
428 * [Benno Schulenberg]: Fixed a small inconsistency in pidstat
430 * Cosmetic fixes in pidstat manual page.
431 * NLS updated (de, eo, fi, fr, ja, nb, nl, ru, uk, vi).
432 * CREDITS file updated.
434 2013/03/08: Version 10.1.4 - Sebastien Godard (sysstat <at> orange.fr)
435 * [Christophe Cerin]: pidstat now stops and displays its average
436 stats when it receives SIGINT (crtl/c).
437 * mpstat now stops and displays its average stats when it
438 receives SIGINT (crtl/c).
439 * sar now stops and displays its average stats when it receives
441 * pidstat now displays task's UID for all tasks.
442 * pidstat: -U option added. This option tells pidstat to display
443 the username of the task instead of its UID. When this option is
444 followed by a user name, then only tasks belonging to the
445 specified user are displayed by pidstat.
446 * pidstat manual page updated.
447 * Now use sigaction() instead of signal() for signals handling
448 to avoid portability problems.
452 2012/12/23: Version 10.1.3 - Sebastien Godard (sysstat <at> orange.fr)
453 * Changed network counters (used by sar -n {DEV | EDEV }) to
454 unsigned long long to keep in sync with current kernels.
455 WARNING: This breaks compatibility with older sar data
456 files format for network statistics.
457 * Changed IPv4 counters (used by sar -n { IP | EIP}) to
458 unsigned long long to keep in sync with current kernels.
459 WARNING: This breaks compatibility with older sar data
460 files format for IPv4 statistics.
461 * Changed IPv6 counters (used by sar -n { IP6 | EIP6}) to
462 unsigned long long to keep in sync with current kernels.
463 WARNING: This breaks compatibility with older sar data
464 files format for IPv6 statistics.
465 * [Peter Schiffer]: Added option -y to iostat. This option
466 prevents iostat from displaying its first report with
467 statistics since system boot.
468 * [Peter Schiffer]: Increase NR_CPUS and NR_IRQS values.
469 * [John Lau]: sadc didn't collect all its activities when
470 it had to overwrite an old sysstat data file with some
471 unknown activity formats. This is now fixed.
472 * Now install sadc in $prefix/lib64 directory on 64 bit machines
473 even if $prefix/lib directory also exists.
474 * Fixed DTD document: If computer has run all day without
475 restart, XML output file from sadf -x has no boot elements.
476 * Remove heading spaces in softirq names displayed by mpstat
478 * Fixed wrong command execution syntax in configure script.
479 * Removed several unused definitions in some header files.
480 * iostat manual page updated.
482 * CREDITS file updated.
484 2012/10/06: Version 10.1.2 - Sebastien Godard (sysstat <at> orange.fr)
485 * New field added to sar -u and mpstat: %gnice (time spent
486 running a niced guest).
487 * New field added to sar -r: kbdirty (amount of memory waiting
488 to get written back to disk).
489 * [Peter Schiffer]: systemd support added.
490 * [Peter Schiffer]: Sysstat init script updated to make it
491 more conforming to LSB.
492 * XML DTD document name is now tagged with a version number.
493 * Fixed a fatal error when compiled with -Werror=format-security.
494 * sar, sadf and mpstat manual pages updated.
495 * DTD and XSD documents updated.
496 * Cosmetic change in sadf -H output.
499 2012/07/29: Version 10.1.1 - Sebastien Godard (sysstat <at> orange.fr)
500 * Added option -[0-9]+ to sar to show data of that days ago.
501 * [Peter Schiffer]: Persistent device names support added to
502 sar and iostat (option -j).
503 * [Peter Schiffer]: Make sysstat disk counters consistent
504 with those from latest kernel (3.5).
505 WARNING: This breaks compatibility with older sar data
506 files format for disk activity.
507 * [Peter Schiffer]: sar: Use /sys/dev/block/major:minor links
508 to determine devices real name.
509 * Part of 'sadf -H' output was written to stderr instead of
510 stdout. This is now fixed.
511 * WARNING: sadf: Option '-T' has been renamed into '-U', and
512 option '-t' has been renamed into '-T'.
513 * sadf: New option -t added. This option tells sadf to display
514 the timestamps in the local time of the data file creator
515 instead of UTC. The same option exists for sar.
516 * [Peter Schiffer]: Various cosmetic changes in manual pages
517 and usage messages displayed by sysstat commands.
520 * sar, sadf and iostat manual pages updated.
522 2012/05/16: Version 10.0.5 - Sebastien Godard (sysstat <at> orange.fr)
523 * [Alain Chereau]: Options -g and -T added to iostat. These
524 options enable the user to display statistics for groups of
526 * [Vitezslav Cizek]: sadc now overwrites its standard daily
527 data file when this file is from a past month.
528 * sadf: Change time format from HH-MM-SS to HH:MM:SS in the
529 various reports displayed by sadf.
530 * XSD document updated: Added a maxOccurs indicator for the
532 * Added option --enable-collect-all to configure script.
533 This option tells sadc to collect all possible activities,
534 including optional ones.
535 * [Peter Schiffer]: Set exit code to 0 for sa2 shell script.
536 * NLS updated. Croatian translation added.
537 * iostat and sadc manual pages updated.
539 * CREDITS file updated.
541 2012/03/07: Version 10.0.4 - Sebastien Godard (sysstat <at> orange.fr)
542 * [Andrey Borzenkov]: Don't take virtual devices into account in
544 * [Peter Schiffer]: iostat didn't display target device
545 information when a symbolic link was specified as a parameter.
547 * The number of jiffies spent by a CPU in guest mode given by the
548 corresponding counter in /proc/stat may be slightly different
549 from that included in the user counter. Take this into account
550 when calculating current time interval value.
551 * configure script updated: Added --disable-stripping option.
552 Using this option tells configure to NOT strip object files.
554 * sa1 manual page updated.
555 * NLS updated. Serbian translation added.
557 2011/11/27: Version 10.0.3 - Sebastien Godard (sysstat <at> orange.fr)
558 * sadf: New output format added: JSON (JavaScript Object
559 Notation). This format can be displayed with sadf's option -j.
560 * [Jurgen Heinemann]: Fixed a bug in sadf XML output.
561 * [Jurgen Heinemann]: Fixed several bugs in DTD and XSD
563 * [Petr Uzel]: Fixed random crash with iostat when called with
564 option -N [NOVELL Bug#729130].
565 * sadf manual page updated.
567 * CREDITS file updated.
569 2011/08/28: Version 10.0.2 - Sebastien Godard (sysstat <at> orange.fr)
570 * sadf modified to make it easier to add new output formats.
571 Its design is still not generic anyway.
572 * Option -T added to sadf: This option tells sadf to display
573 timestamps in seconds since the epoch (when applicable).
574 * Option "-P ON" added to mpstat. This option tells mpstat
575 to display stats only for online CPU.
576 * [Kei Ishida]: pidstat displayed stats for processes that
577 had terminated while pidstat was running. This is now fixed.
578 * [Jeroen Roovers]: Automate translation files handling in
580 * DTD and XSD documents updated.
581 * sadf and mpstat manual pages updated.
582 * pidstat manual page updated: Added description of field %MEM
583 displayed by pidstat -r.
584 * Various cosmetic changes (sar.c, sadf.c).
586 * CREDITS file updated.
588 2011/06/03: Version 10.0.1 - Sebastien Godard (sysstat <at> orange.fr)
589 * Added USB devices statistics to sar and sadc. The option
590 "-m USB" can now be used with sar to take a snapshot of all
591 the USB devices currently plugged into the system.
592 * sadf -p now displays the sensor device name for temperature,
593 voltage inputs and fans statistics.
594 * sar and pidstat: Check that _("Average") string doesn't exceed
595 the size of the timestamp buffer.
596 * [Ivana Varekova]: Added option -h to iostat. This option makes
597 the device utilization report easier to read with long device
599 * [Ivana Varekova]: cifsiostat didn't count open files from the
600 "Posix Open" column in /proc/fs/cifs/Stats file. This is now
602 * [Ivana Varekova]: Close file descriptor in read_uptime()
603 function (rd_stats.c file).
604 * Fixed XML output displayed by sadf (hugepages statistics were
605 included in <power-management> section).
606 * sar: Decrease column width for sensor device name (temperature,
607 voltage inputs and fans statistics).
608 * Remove unnecessary arguments from functions in pr_stats.c.
609 * sar manual page updated.
610 * DTD and XSD documents updated and cleaned.
611 * NLS updated. Esperanto translation added.
612 * CREDITS file updated.
614 2011/03/15: Version 10.0.0 - Sebastien Godard (sysstat <at> orange.fr)
615 * [Ivana Varekova]: Fixed a problem with long NFS and CIFS share
616 names in cifsiostat and nfsiostat.
617 * [Ivana Varekova]: Added the possibility to extend the number
618 of slots for NFS and CIFS mount points on the fly.
619 * [Ivana Varekova]: Check calloc() return value in cifsiostat
621 * [Jan Kaluza]: Added --debuginfo option to cifsiostat and
623 * cifsiostat and nfsiostat manual pages updated.
624 * Don't link sysstat's commands with sensors library if not
625 needed [DEBIAN Bug#612571].
626 * [Adam Heath]: iostat incorrectly mapped device-mapper IDs
627 greater than 256. This is now fixed [DEBIAN Bug#614397].
628 * Sysstat's commands option -V now displays the version number
629 on stdout and returns 0 for the exit code.
630 * sysstat_panic function is now defined only in DEBUG mode.
631 * NLS updated. Ukrainian translation added.
632 * CREDITS file updated.
634 2010/12/26: Version 9.1.7 - Sebastien Godard (sysstat <at> orange.fr)
635 INFO: stats_queue structure format has changed and is *not*
636 compatible with the previous one [+1]
637 * sar now tells sadc to read only the necessary groups of
639 * Added a new metric (number of tasks waiting for I/O) to
641 * Added two new metrics (amount of active and inactive
643 * [Ivana Varekova]: Fix segfaults on bogus localtime input.
644 * Fixed bogus CPU statistics output, which happened when
645 CPU user value from /proc/stat wasn't incremented whereas
647 * nfsiostat now takes into account POSIXLY_CORRECT environment
648 variable. nfsiostat default output is expressed in kB/s,
649 unless this variable is set (in which case the output is
650 expressed in blocks/s).
651 * No longer assume that device-mapper major number is 253.
652 Get the real number from /proc/devices file.
653 * DTD and XSD documents updated.
654 * [Kenichi Okuyama]: Small change to sar manual page.
655 * sar manual page updated.
659 2010/11/10: Version 9.1.6 - Sebastien Godard (sysstat <at> orange.fr)
660 WARNING: Daily data files format has changed, and is *not*
661 compatible with the previous one! [0x2171]
662 * Added a new magical value for each activity in file.
663 A format change can now hit only one activity instead of
665 * Added CPU average clock frequency statistics to sar and sadc.
666 * Added hugepages utilization statistics to sar and sadc.
667 * Fixed some differences between XML output (as displayed by
668 sadf -x) and DTD document.
669 * sadc -S POWER didn't include voltage inputs statistics.
671 * Define groups of activities: Each activity has now a new
672 attribute specifying the group it belongs to (POWER, IPV6, etc.)
673 * [Ivana Varekova]: Moved manual pages to $prefix/share/man
674 instead of $prefix/man.
675 * [Ivana Varekova]: Fixed configure's --disable-man-group option.
676 * [Ivana Varekova]: Added SADC_OPTIONS to sysstat configuration file.
677 * [Ivana Varekova]: Added sysstat(5) manual page.
678 * sar manual page updated.
679 * DTD and XSD documents updated.
681 * Split up prf_stats.c file into rndr_stats.c and xml_stats.c
682 * Moved cron files in a separate cron subdirectory.
683 * Made sysstat git aware.
684 * CREDITS file updated.
686 2010/09/12: Version 9.1.5 - Sebastien Godard (sysstat <at> orange.fr)
687 * Added voltage inputs statistics to sar and sadc.
688 * Added %temp field to device temperature statistics (sar -m TEMP).
689 * Added drpm field to fan speed statistics (sar -m FAN).
690 * XSD and DTD documents updated.
691 * sar manual page updated. Indicate that svctm field should
692 no longer be trusted.
693 * Removed link to isag(1) from man pages.
694 * NLS updated. Czech translation added.
695 * Sample crontabs and sysstat init script: Don't collect disk
699 2010/07/29: Version 9.1.4 - Sebastien Godard (sysstat <at> orange.fr)
700 * [Jan Kaluza]: Added fan speed and device temperature
701 statistics to sar and sadc.
702 * [Jan Kaluza]: Configure script updated. Now check for
704 * Configure script updated: Added --disable-sensors option.
705 * Configure script updated: Removed --enable-smp-race option.
706 * iconfig script updated.
707 * sar manual page updated.
708 * XSD and DTD documents updated.
709 * [Ivana Varekova]: sysstat init script updated.
710 * Default owner for sadc/sar crontab is now root.
711 * Various fixes in cifsiostat and nfsiostat manual pages.
714 2010/06/27: Version 9.1.3 - Sebastien Godard (sysstat <at> orange.fr)
715 * [Ivana Varekova]: Move NFS code out from iostat and create
716 the new nfsiostat command.
717 * [Ivana Varekova]: Added cifsiostat command. This command
718 displays CIFS statistics.
719 * [Mario Konrad]: Added regular expressions support to pidstat's
721 * [Mario Konrad]: Added option -s to pidstat to display stack
723 * [Ivana Varekova]: Fixed condition used by sar to distinguish
724 betwwen a counter reset by a newly registered device and a
726 * [Jan Kaluza]: Added --debuginfo option to iostat.
727 * [Jan Kaluza]: Added --enable-debuginfo option to configure script.
728 * iconfig configuration script updated.
729 * iostat manual page updated. Indicate that svctm field should
730 no longer be trusted.
731 * pidstat manual page updated.
732 * autoconf script updated.
734 * README and CREDITS files updated.
736 2010/05/23: Version 9.1.2 - Sebastien Godard (sysstat <at> orange.fr)
737 * Added r_await and w_await fields to iostat's extended statistics.
738 * Added support for tickless CPUs in sar and mpstat.
739 * NLS was not taken into account when mpstat or sar were displaying
740 some null statistics. This is now fixed.
741 * sadc no longer syncs data with its output file contents. It
742 put a pain on flash devices as it undermined any tuning of
743 the vm's write behavior [DEBIAN Bug#559686].
744 * NLS updated. Basque translation added.
745 * iostat, sar and sa1 manual pages updated.
746 * CREDITS file updated.
748 2010/02/28: Version 9.1.1 - Sebastien Godard (sysstat <at> orange.fr)
749 * Remove support for kernels older than 2.6.x.
750 * iostat now takes into account POSIXLY_CORRECT environment
751 variable. iostat default output for disk utilization is
752 expressed in kB/s, unless this variable is set (in which case
753 the output is expressed in blocks/s).
754 * mpstat can now display per processor software interrupts
755 statistics. This requires Linux kernel 2.6.31 or later.
756 * Because of a change in /proc/interrupts file format, mpstat
757 was no longer counting the proper number of interrupts. This
759 * Manual pages updated.
763 2009/11/11: Version 9.0.6 - Sebastien Godard (sysstat <at> orange.fr)
764 * "sadf -x" now takes into account options -s and -e (which
765 specify a starting and ending time) and also interval and
766 count parameters [DEBIAN bug#546259].
767 * Option -C added to sadf. Use it to tell sadf to display comments
768 present in file (also works with XML format).
769 * sar and sadf sometimes didn't handle COMMENT records properly.
771 * XML output (displayed by sadf -x) modified for kernel tables
773 * XSD and DTD documents updated.
774 * [Yibin Shen]: HZ variable was not explicitly set in sadc.c. This
776 * [Lans Carstensen]: sargraph added (sargraph is a shell script
777 used to make graphs based on sadf XML output).
778 * sadf manual page updated.
781 * CREDITS file updated.
783 2009/09/20: Version 9.0.5 - Sebastien Godard (sysstat <at> orange.fr)
784 * sysstat should now be able to pretty print device names whose
785 minor numbers are greater than or equal to 256. (Tests have
786 been made on a large 26TB RHEL5/PP Linux cluster.)
787 * sadc manual page updated.
791 2009/07/19: Version 9.0.4 - Sebastien Godard (sysstat <at> orange.fr)
792 * [Jonathan Kamens]: Fix double free/memory corruption bug
794 * [Jeroen Roovers]: Get entirely rid of implicit rule for
795 libsyscom.a in Makefile to fix a problem with parallel
797 * sysstat.ioconf configuration file updated.
799 * CREDITS file updated.
801 2009/05/24: Version 9.0.3 - Sebastien Godard (sysstat <at> orange.fr)
802 * [Michael Blakeley]: Option -z added to iostat. This option
803 tells iostat to omit output for any devices for which there
804 was no activity during the sample period.
805 * [Tomasz Pala]: Fix mpstat where interrupt values should be
806 read as unsigned integers.
807 * sar -n ALL didn't select IPv6 statistics. This is now fixed.
808 * iostat, sar and mpstat manual pages updated.
809 * sadf -x now displays file creation date.
810 * XSD and DTD documents updated.
811 * NLS updated. Latvian translation added.
812 * CREDITS file updated.
815 2009/04/02: Version 9.0.2 - Sebastien Godard (sysstat <at> orange.fr)
816 * sadc can now collect partition statistics in addition to disk ones.
817 Keywords XDISK and XALL have been added to -S option.
818 * Fixed a memory corruption in pidstat and iostat. This corruption
819 could happen when a list of comma-separated values following
820 option -p was entered on the command line.
821 * configure now takes into account a new variable named rcdir.
822 This variable may be used to specify the directory where
823 startup scripts will be installed.
824 * The value of directory for installing documentation files
825 can now be set with configure's --docdir option.
826 * Fixed a small bug in activity.c file, where there was a
827 missing semicolon between two fields.
828 * sar and sadc manual pages updated.
830 * CREDITS file updated.
832 2009/03/07: Version 9.0.1 - Sebastien Godard (sysstat <at> orange.fr)
833 * Fix a crash with sar where a pointer was freed twice.
835 * sar manual page updated.
836 * CREDITS file updated.
838 2009/03/01: Version 9.0.0 - Sebastien Godard (sysstat <at> orange.fr)
839 * Option -m added to sar. This option is intended to display
840 power management statistics. At the present time, only
841 CPU frequency statistics are available.
842 * sadc updated: Option "-S POWER" tells sadc to collect power
843 management statistics.
844 * sadf command updated to take into account power management
846 * [Mike Harvey]: No longer truncate the interval of time to
847 32 bits, as this may cause some problems when displaying
848 average values statistics on machines with hundreds of CPU.
849 * read_uptime(): Cast values read from /proc/uptime to
851 * Fixed a small bug in sar where it didn't parse arguments
852 properly when some options were entered in a specific order.
853 * sadc and sar manual pages updated.
854 * XSD and DTD documents updated.
857 * Code cleaned. Makefile cleaned.
859 2009/01/11: Version 8.1.8 - Sebastien Godard (sysstat <at> orange.fr)
860 * IPv6 support added. A bunch of new metrics have been added to
861 sar, enabling the user to display statistics for IPv6 protocol
862 family (IPv6, ICMPv6, UDPv6 and network sockets).
863 * sadc updated: Option "-S IPV6" tells sadc to collect IPv6
865 * sadf command updated to take into account IPv6 statistics.
866 * Options -S (for sadc), -P (for mpstat, sar and sadf), -p (for
867 iostat and pidstat) and -n and -I (for sar) now accept a list of
868 comma-separated arguments.
869 * [Ivana Varekova]: Make iostat display statistics for devices only
870 (and not partitions) when not using its option -d. This was
871 no longer possible with kernels 2.6.25 and later because iostat
872 couldn't distinguish between devices and partitions any more.
873 * iostat's options -x and -p are no longer mutually exclusive:
874 Extended statistics are now available even for partitions with
876 * iostat was unable to read stats from sysfs for devices who had
877 a slash in their names (for example, iostat -p /dev/cciss/c0d0
878 didn't work properly before). This is now fixed.
879 * [Amir Rapson]: Fixed a bug in iostat where %CPU spent
880 servicing hard and soft irq were counted twice. This bug
881 was introduced in 8.1.5.
882 * DTD and XSD files updated.
883 * Manual pages updated.
884 * NLS updated. Maltese translation added.
885 * CREDITS file updated.
887 2008/11/13: Version 8.1.7 - Sebastien Godard (sysstat <at> orange.fr)
888 * Support for SNMP statistics added to sar. Several keywords
889 have been added to option "-n". The user can now display
890 statistics about IP, ICMP, TCP and UDP network traffic.
891 * sadc updated: Option "-S SNMP" tells sadc to collect SNMP
893 * sadf command updated to take into account SNMP statistics.
894 * sadf -x now also displays number of CPU.
895 * DTD and XSD files updated.
896 * sar/sadc: Each item (like network interfaces) is now counted
898 * [Eduardo Ferro Aldama]: Option -l added to pidstat. This
899 option enables the user to display the whole command line for
901 * Option -h added to sar. This option displays a short help message.
902 * Cosmetic change in sadf -x output for network statistics.
903 * sadf -H now displays the real name of each activity saved in file.
904 * Fixed some memory leaks detected by valgrind.
905 * pidstat, sar and sadc manual pages updated.
908 * CREDITS file updated.
911 2008/09/30: Version 8.1.6 - Sebastien Godard (sysstat <at> orange.fr)
912 * [David Alan Gilbert]: Option -h added to pidstat. This
913 option is used to display all activities horizontally on a
915 * Fixed a bug in pidstat: When pidstat was used to monitor a
916 process and all its threads (with pidstat's option -t), it
917 could display weird values if the thread group leader terminated.
918 * Header line displayed by sar, iostat, mpstat, pidstat and
919 sadf -H now includes the number of CPU.
920 * Use the correct word TGID instead of PID with pidstat -t.
921 * mpstat now displays stats for all interrupts, including NMI,
923 * sar and sadf now check that CPU activity is available in file.
924 * iostat's option -t now always displays the date and the time.
925 * Added option "--disable-documentation" to ./configure. Using
926 this option prevents documentation files (including manual
927 pages) from being installed.
928 * iconfig script updated. Now ask the user for documentation
929 and isag script installation.
930 * Manual pages updated.
931 * NLS updated. Indonesian and Chinese (traditional) translations
933 * README-nls file updated.
934 * Makefile updated: There is now a dedicated target to install
935 or uninstall NLS files
937 * CREDITS file updated.
940 2008/07/14: Version 8.1.5 - Sebastien Godard (sysstat <at> orange.fr)
941 * Added virtual machine time accounting to "sar -u ALL" and
943 * pidstat has also been updated to be able to display time
944 spent in virtual machine for a task, and for a task and all
946 * Option -S added to sar: This options tells sar to display
947 swap space utilization. Option -r now only displays memory
949 * Added %swpcad to sar -S (percentage of cached swap memory
950 in relation to the amount of used swap space).
951 * Added kbcommit and %commit to sar -r (amount and percentage
952 of memory needed for current workload).
953 * sadf -x now distinguishes between options -r and -R.
954 * sadf command updated to take into account new fields
955 (%guest, %swpcad, etc.)
956 * [Ivana Varekova]: iostat now displays the total number of
957 operations per second in the NFS report.
958 * Fixed iostat so that %system (percentage of CPU utilization
959 that occurred while executing at system level) also takes
960 into account time spent to service interrupts and softirqs.
961 * Added a missing header line for activities with multiple
962 outputs displayed by sar (eg. sar -rR ...).
963 * Makefile updated: There is now a dedicated target to install
964 or uninstall manual pages.
965 * Manual pages updated.
967 * XSD and DTD documents updated.
968 * isag script updated.
970 2008/06/22: Version 8.1.4 - Sebastien Godard (sysstat <at> orange.fr)
971 * sar can now collect and display all CPU fields with its new
972 option "-u ALL". sadf has also been updated to be able to
974 * mpstat can now display per-CPU interrupts statistics with its
975 option "-I CPU". This was a feature available in sar that was
976 removed in previous sysstat version.
977 * mpstat uses now a separate option ("-I SUM") to display the
978 total number of interrupts for each processor.
979 * Option -A added to mpstat. This switch tells mpstat to display
980 all possible activities.
981 * NFS v4 support added to sar -n NFS(D). When both NFS v3 and
982 NFS v4 are used, stats from NFS v3 and NFS v4 are added
983 together [DEBIAN bug#434442].
984 * Code cleaned: mpstat, iostat and pidstat now use the common
985 functions from rd_stats.c to read CPU stats from /proc/stat;
986 Computing extended disk statistics (service time, etc.) is now
987 done in one place (common function used by iostat, sar, sadf).
988 * All sysstat commands are made consistent with how parameters
989 are interpreted: "COMMAND <interval>" now generates a report
990 continuously, "COMMAND <interval> 0" causes an error,
991 "COMMAND 0" displays a report since system startup
993 * Changed XML output for processes and context switches displayed
994 by sadf -x to be consistent with output from sar.
995 * mpstat and sar manual pages updated.
996 * isag script updated.
998 * DTD and XML Schema updated.
1001 2008/05/25: Version 8.1.3 - Sebastien Godard (sysstat <at> orange.fr)
1002 WARNING: Daily data files format has changed, and is *not*
1003 compatible with the previous one! [0x2170]
1004 * sar, sadc and sadf heavily modified. It is now easier to add
1005 (or remove) activities since sar and sadc have been rewritten
1006 in a non-monolithic way with a generic design architecture.
1007 * Option -c removed from sar. Task creation and context switch
1008 activities are now merged and available with option -w.
1009 * sar no longer displays interrupts per processor statistics.
1010 This feature will be included in mpstat in next sysstat version.
1011 * Option -S added to sadc. This option replaces previous options
1012 -I or -d, and is used to select activities that should be
1013 collected and saved in file. It is even possible to
1014 select each activity collected by sadc.
1015 * Format of data files created by sar/sadc heavily modified.
1016 In some cases, it is now possible to add or remove activities
1017 while keeping a compatible format that can be read by a previous
1018 or future sysstat version.
1019 * sadf now only displays activities that have been explicitly
1021 * sar now checks that devices displayed by option -d are whole
1022 devices (and not partitions) using sysstat.ioconf configuration
1023 file. If this file is not found in its default directory, then
1024 sysstat looks for it in current directory.
1025 * gettextize entire usage() messages so that translators have
1027 * DTD and XML Schema updated.
1028 * Manual pages updated.
1029 * Crontab samples updated.
1033 2008/03/16: Version 8.1.2 - Sebastien Godard (sysstat <at> orange.fr)
1034 * [Ivana Varekova]: iostat now displays read and write operations
1035 per second in the NFS report.
1036 * [Tomas Mraz]: sadc now retries to write its buffers when the
1037 write() call has been interrupted by a signal.
1038 * Use setbuf() call instead of fflush() to indicate that data
1039 should not be buffered to stdout.
1040 * Option -h added to sadf. Used with options -d or -D, it
1041 indicates that all activities should be displayed horizontally
1042 on a single line of data.
1043 * sadf -d and sadf -D now display the list of fields for easier
1045 * sadf and iostat manual pages updated.
1046 * NLS updated: Chinese (simplified) translation added, other
1047 translations updated.
1049 2008/02/10: Version 8.1.1 - Sebastien Godard (sysstat <at> orange.fr)
1050 WARNING: Daily data files format has changed, and is *not*
1051 compatible with the previous one! [0x216f]
1052 * System activity data files now have extra header data that
1053 enable to identify which version of sysstat created them.
1054 * sadf -H now displays the version of sysstat used to create
1055 a system activity data file.
1056 * Machine architecture is now displayed in the reports header.
1057 sadf -x also displays machine architecture.
1058 * DTD and XML Schema documents updated.
1059 * The number of processors was not properly calculated on
1060 machines where a directory named cpuidle was present in the
1061 /sys/devices/system/cpu directory [GENTOO bug# 207886].
1062 * Use __CPU_SETSIZE definition from <sched.h> instead of a
1063 static definition for the maximum number of CPUs (NR_CPUS).
1064 * Improved error messages displayed by sysstat's commands.
1065 * NLS updated: Finnish translation added, Dutch translation
1068 * Code cleaned and documented. Linux-like style applied to
1069 code source. Large functions split into smaller ones.
1071 2008/01/06: Version 8.0.4 - Sebastien Godard (sysstat <at> orange.fr)
1072 * Removed a 'packed' attribute in pidstat.h that generated
1073 a warning with gcc 4.1.1.
1074 * Take account of all memory zone types when calculating
1075 pgscank, pgscand and pgsteal displayed by sar -B.
1076 * XML Schema added. Useful with sadf option -x.
1077 * sadc and sadf manual pages updated.
1078 * NLS updated: Dutch translation added.
1079 * NLS updated: Brazilian Portuguese translation added.
1080 * NLS updated: Vietnamese translation added.
1081 * NLS updated: Kirghiz translation added.
1082 * NLS updated: Added a PO template file in nls directory.
1083 Makefile modified to enable PO files update.
1084 * sccsid string now also includes package name and version number.
1085 * Makefile updated: Startup links are named S01xxx instead of S03xxx
1086 to be consistent with chkconfig values.
1087 * Various spelling fixes.
1088 * CREDITS file updated.
1090 2007/11/19: Version 8.0.3 - Sebastien Godard (sysstat <at> orange.fr)
1091 * mpstat and sar didn't parse /proc/interrupts correctly when
1092 some CPUs had been disabled. This is now fixed.
1093 * Fixed a bug in pidstat where a confusion between PID and TID
1094 could sometimes happen, resulting in erroneous statistics
1095 values being displayed.
1096 * iconfig script updated: Help for --enable-compress-manpg
1097 parameter is now available, help for --enable-install-cron
1098 parameter updated, added parameter cron_interval.
1099 * sa2 shell script can now compress sar data files using bzip2.
1100 * Makefile updated: Now also remove sysstat.crond.sample.in.
1101 Documentation is installed in $prefix/share/doc/ instead of
1102 $prefix/doc/ directory.
1105 * CREDITS file updated.
1106 * Sysstat's URL updated.
1108 2007/10/26: Version 8.0.2 - Sebastien Godard (sysstat <at> orange.fr)
1109 * Option -w added to pidstat. pidstat can now display task
1111 * Fixed a memory leak in pidstat that was triggered when
1112 reading stats for threads.
1113 * Fixed a bug where device names were incorrectly displayed by
1114 sar -d or sar -dp. Fixed also this bug for sadf.
1115 * When using option -o, sar now saves by default all the
1116 statistics into the file, including interrupts and disks
1117 statistics. Interrupts and disks statistics remain optional
1119 * sysstat startup script updated.
1120 * sar and pidstat manual pages updated.
1124 * CREDITS file updated.
1126 2007/09/30: Version 8.0.1 - Sebastien Godard (sysstat <at> orange.fr)
1127 * Option -t added to pistat. pidstat can now display stats for
1128 every thread (TID) of a process.
1129 * pidstat's option -T CHILD now reports global statistics for
1130 selected tasks and all their children (and not only for the
1132 * pidstat now reads VSZ and RSS values from /proc/#/stat instead
1134 * Fixed a rare parallel make issue creating archive libsyscom.a
1135 [GENTOO bug #193208].
1136 * pidstat manual page updated.
1137 * SCCS identification string added to all commands.
1140 * CREDITS file updated.
1142 2007/09/02: Version 8.0.0 - Sebastien Godard (sysstat <at> orange.fr)
1143 WARNING: Daily data files format has changed, and is *not*
1144 compatible with the previous one! [0x216e]
1145 * pidstat command improved. It is now able to report CPU and
1146 page fault statistics for the child processes of a task.
1147 * Option -T added to pidstat. This option tells pidstat if
1148 statistics are to be reported for tasks (which is the default)
1149 or for their children.
1150 * Fixed a security flaw in sysstat startup script (CVE-2007-3852).
1151 * Removed super*, dquot* and rtsig* fields from sar -v.
1152 They were made obsolete in Linux kernels 2.6.
1153 * Fields file-sz and inode-sz from sar -v renamed to file-nr
1155 * Added field pty-nr (number of pseudo-terminals) to sar -v.
1156 * Added field tcp-tw (number of sockets in TIME_WAIT state)
1158 * sar and sadf updated so that they can properly extract records
1159 (with their options -s and -e) from a file containing data for
1160 two consecutive days.
1161 * Added option "--enable-install-isag" to "configure" to enable
1162 the user to install isag script.
1163 * Fixed a typo in iconfig script: The user was unable to specify
1165 * Manual pages updated.
1166 * Sysstat DTD file updated.
1170 * CREDITS file updated.
1171 * Author's email updated.
1173 2007/07/08: Version 7.1.6 - Sebastien Godard (sysstat <at> wanadoo.fr)
1174 WARNING: Daily data files format has changed, and is *not*
1175 compatible with the previous one! [0x216d]
1176 * New VM paging metrics added to sar (option -B).
1177 * Options -x and -X have been removed from sar. Use pidstat(1)
1179 * NR_CPUS increased to 16384 so that sysstat can be used on
1181 * Fixed a bug in sadc.c where it was using a hardcoded 256 char
1182 buffer to store lines read from /proc/interrupts.
1183 * sar updated to avoid overflow when computing some average values.
1184 * sar and mpstat manual pages updated.
1185 * Sysstat DTD file updated.
1188 * CREDITS file updated.
1190 2007/06/07: Version 7.1.5 - Sebastien Godard (sysstat <at> wanadoo.fr)
1191 WARNING: Daily data files format has changed, and is *not*
1192 compatible with the previous one! [0x216c]
1193 * Option -d added to pidstat: This option reports I/O statistics
1194 for individual tasks.
1195 * Option -C added to sadc: This option enables the user to insert
1196 a timestamped comment in the binary data file.
1197 * Option -C added to sar: This option tells sar to display
1198 comments inserted in the binary data file by sadc.
1199 * sadf updated to display comments.
1200 * Fixed a bug that could happen while reading /proc/interrupts,
1201 where irq numbers can now be 4 digits long in recent kernels.
1202 * Fixed a possible buffer overflow in ioconf.c.
1203 * Makefile updated: Remove previous manual pages before installing
1205 * pidstat, sar and sadc manual pages updated.
1206 * Sysstat DTD file updated.
1207 * Fixed DTD version in sadf.h.
1209 * CREDITS file updated.
1211 2007/04/29: Version 7.1.4 - Sebastien Godard (sysstat <at> wanadoo.fr)
1212 * Addition of a new command "pidstat" aimed at displaying
1213 per-process statistics.
1214 * Option -N added to iostat. This option enables the user to
1215 query any device-mapper devices for their registered device name
1217 * Fixed a small memory leak in readp_uptime() function.
1218 * Typo fixed in configure.in file
1219 (s+INIT_DIR/etc/rc.d/init.d+INIT_DIR=/etc/rc.d/init.d+).
1220 * Stricter syntax checking for iostat.
1221 * sar -dp now displays the device as "devM-N" (instead of "nodev")
1222 when it can't find its real name in sysstat.ioconf file.
1223 * iostat -t now also takes into account the value of environment
1224 variable S_TIME_FORMAT.
1225 * Manual pages now take into account variables defined by
1227 * isag now takes into account variables defined by "configure".
1228 * "configure" now determines automatically whether workaround for
1229 SMP race is needed. This workaround is for SMP kernels 2.2.x with
1231 * pidstat manual page added. Other manual pages updated.
1235 * Code cleaned again and again...
1236 * Removed sargon from contrib directory since its features are
1237 now included in sysstat by default.
1239 2007/03/27: Version 7.1.3 - Sebastien Godard (sysstat <at> wanadoo.fr)
1240 WARNING: Daily data files format has changed, and is *not*
1241 compatible with the previous one! [0x216b]
1242 * Hotplug CPU support: Fixed a bug that happened when sar tried
1243 to read a datafile created while a least one processor was
1245 * Better support for keeping sar logfiles for more than one month
1246 (several bugs fixed in sa1 and sa2 scripts).
1247 * Fixed a small bug in sa2 script, where obsolete log files would not
1248 be deleted if system activity directory was a symbolic link to
1249 some other directory.
1250 * The new variable "conf_dir" now enables the user to specify sysstat
1251 configuration directory. This variable is used by "configure".
1252 * Added option "--enable-compress-manpg" to "configure" to enable the
1253 user to compress manual pages during installation.
1254 * Removed some 'packed' attributes in sa.h and iostat.h that
1255 generated warnings with gcc 4.1.1.
1256 * isag (Interactive System Activity Grapher) improved.
1257 * CREDITS file updated.
1260 2007/03/04: Version 7.1.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1261 WARNING: Daily data files format has changed, and is *not*
1262 compatible with the previous one! [0x216a]
1263 * Better hotplug CPU support. Now sysstat no longer assumes that
1264 CPU#0 can never be disabled. It uses /proc/uptime file to
1265 compute time interval.
1266 * Various structures realignment to save memory (and disk space).
1267 * Make sar -n display network traffic in kilobytes instead of bytes.
1268 * Make sysstat compile cleanly with gcc 4.0.2.
1269 * sysstat DTD file updated.
1270 * NLS updated: Danish translation added.
1271 * Manual pages updated.
1272 * CREDITS file updated.
1274 2007/02/21: Version 7.1.1 - Sebastien Godard (sysstat <at> wanadoo.fr)
1275 * Autoconf support added.
1276 * iconfig (Interactive Configuration script) added. iconfig is
1277 a front-end to ./configure.
1278 * spec file updated.
1280 * sadf manual page updated.
1281 * CREDITS file updated.
1283 2007/02/04: Version 7.0.4 - Sebastien Godard (sysstat <at> wanadoo.fr)
1284 * Removed linux/major.h from list of files included in ioconf.c.
1285 It was actually not used and also prevented sysstat from being
1286 compiled on GNU/kFreeBSD.
1287 * Sysstat scripts (sa1, sa2, sysstat) modified to enable the user
1288 to keep sar data for more than one month.
1289 * New parameter (COMPRESSAFTER) added to /etc/sysconfig/sysstat.
1290 It gives the number of days after which sar datafiles must be
1291 compressed to save disk space.
1292 * Replaced the word "Device" with "Filesystem" for iostat
1294 * iostat manual page updated.
1295 * Makefile updated: don't use a static list of languages to
1297 * "make install" now always install sysstat configuration file
1298 (default location is /etc/sysconfig).
1300 * Added my email address when displaying sysstat version.
1303 2006/12/03: Version 7.0.3 - Sebastien Godard (sysstat <at> wanadoo.fr)
1304 * iostat NFS statistics added.
1305 * iostat manual page updated.
1306 * Columns "r/s" and "w/s" enlarged for iostat -x.
1307 * Minor change so that sar -u may fit in 80 columns.
1309 * CREDITS file updated.
1311 2006/10/22: Version 7.0.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1312 * Hotplug CPU support added to sar and mpstat
1313 * Use /sys to count the number of available processors.
1314 /proc/stat is used for that only if /sys is not found.
1315 * sysstat DTD updated.
1316 * sysstat spec file updated (gettext is now required).
1317 * NLS updated: Swedish translation added.
1318 * Manual pages updated.
1320 * CREDITS file updated.
1322 2006/09/17: Version 7.0.1 - Sebastien Godard (sysstat <at> wanadoo.fr)
1323 * Use now sysconf() function to get the size of a memory page
1324 instead of using header file <asm/page.h>.
1325 * The time specified with sadf options -s and -e is now always
1326 considered as given in local time. sadf output is now really
1327 consistent with that of sar.
1328 * Fixed a bug in the SREALLOC() macro which was causing sar to
1329 exit unexpectedly with this message: "realloc: Success".
1330 * Try to better guess when a stats title line has to be displayed
1332 * Makefile updated (SMP_RACE definition was no longer taken into
1333 account when compiling sadc).
1334 * sysstat spec file updated.
1335 * sar and sadf manual pages updated.
1337 * CREDITS file updated.
1339 2006/07/09: Version 7.0.0 - Sebastien Godard (sysstat <at> wanadoo.fr)
1340 * S_TIME_DEF_TIME environment variable added for sar, sadc and
1342 * Use now sysconf() function to get the number of clock ticks
1343 per second (HZ value) instead of using kernel include file
1345 * Columns "Device", "rrqm/s" and "wrqm/s" enlarged for iostat -x.
1346 * sysstat installation process updated to use chkconfig if
1348 * Manual pages updated.
1350 * sysstat web site address updated.
1352 * CREDITS file updated.
1354 2006/05/24: Version 6.1.3 - Sebastien Godard (sysstat <at> wanadoo.fr)
1355 WARNING: Daily data files format has changed, and is *not*
1356 compatible with the previous one! [0x2169]
1357 * Option -P can now be used with sar even on SMP machines where
1358 only one processor is available.
1359 * Small bug fixed for mpstat, where explicitly specifying
1360 processor 0 ("-P 0") could lead to incorrect output on UP
1362 * Option -D added to sadf: this option displays the contents of
1363 a data file in a database-friendly format with a timestamp
1364 expressed in seconds from the epoch.
1365 * sadf manual page updated.
1367 * CREDITS file updated.
1369 2006/04/23: Version 6.1.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1370 * Fix incorrect NFS client and server statistics for sar.
1371 * sar can now display stats for newly created processes when
1372 option -x ALL or -X ALL is used.
1373 * iostat -x was displaying redundant information. It now
1374 displays amount of data read from or written to devices in
1375 sectors, kilobytes or megabytes depending on the switch used.
1376 * isag updated to keep up with current sar version.
1377 * sar and mpstat manual pages updated.
1380 2006/02/22: Version 6.1.1 - Sebastien Godard (sysstat <at> wanadoo.fr)
1381 WARNING: Daily data files format has changed, and is *not*
1382 compatible with the previous one! [0x2168]
1383 * New field added to sar: %steal.
1384 * The size of a long integer in now saved in the header of the
1385 data file created by sar. This size can be displayed with
1387 * Replaced the keyword "FULL" by the keyword "ALL" for sar -n
1388 to be consistent with remaining options.
1389 * Makefile updated (use implicit rules).
1390 * sar manual page updated.
1391 * CREDITS and FAQ files updated.
1393 2005/11/28: Version 6.0.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1394 * New field added to mpstat and iostat: %steal.
1395 * sar updated to take into account cpu steal time.
1396 * Off-by-one error in ioc_conv which was corrupting device names
1397 on 64-bit architecture [Debian bug #334305].
1398 * Binary RPM package now installs a sample crontab in /etc/cron.d.
1399 * Makefile updated (remove sysstat.cron.* during make clean -
1400 new target added: sysstat.crond.sample).
1401 * sar now checks exit code from dup2() system calls.
1402 * Option -V now only displays sysstat version number.
1405 * Manual pages updated.
1407 2005/06/25: Version 6.0.1 - Sebastien Godard (sysstat <at> wanadoo.fr)
1408 * Fixed a memory leak in ioconf parsing functions used by sar
1410 * sar now displays its statistics to STDOUT in addition to saving
1411 them into the file when option -o has been entered on the
1413 * sar now recalculates number of system items (network interfaces,
1414 disks, serial lines, etc.) when a file rotation happens.
1415 * Make sar -b work again when used without option -d.
1416 * Small changes so that sysstat can be compiled with gcc-4.0.1.
1417 * sysstat updated so that it may be installed on Slackware.
1418 * sar manual page updated.
1419 * CREDITS file updated.
1422 2005/05/14: Version 6.0.0 - Sebastien Godard (sysstat <at> wanadoo.fr)
1423 WARNING: Daily data files format has changed, and is *not*
1424 compatible with the previous one! [0x2167]
1425 * Additional fields added to sar -y (TTY statistics). sar, sadf
1427 * sar -d now only reports for used devices (devices with non zero
1429 * Stricter sadf syntax checking: various output formats are now
1431 * Stricter iostat syntax checking: -k and -m options are now
1433 * iostat: option -m is now taken into account even when
1434 displaying extended statistics.
1435 * Fixed a bug that prevented iostat from displaying stats about
1436 devices that were unknown in sysstat.ioconf file.
1437 * iostat might display bogus sectors values when the corresponding
1438 kernel counters had overflown. This is now fixed.
1439 * "sadf datafile -- -A" should also display individual interrupts
1440 if available in datafile.
1441 * Fixed a bug that prevented sar -x from displaying stats about a
1442 process if it was after the first 256 processes in the process
1444 * Manual pages updated.
1445 * sa1 script always uses option -d in crontab.
1446 * sysstat.ioconf device configuration file updated.
1448 * FAQ and CREDITS files updated.
1451 2005/02/25: Version 5.1.5 - Sebastien Godard (sysstat <at> wanadoo.fr)
1452 * -x option added to sadf: it is now able to display the contents of
1453 a sar datafile in XML. The corresponding DTD (Document Type
1454 Definition) is included in the sysstat package.
1455 * Small code change so that sysstat may be compiled with gcc-4.0.
1456 * A few typos fixed in formulas used by sadf to display stats
1457 on machines where HZ<>100 (typos appeared in sysstat 5.1.4).
1458 * Fixed a bug in the stats displayed by sar -d.
1459 * Removed a false workaround in iostat: better show that the kernel
1460 is buggy rather than display a value that seems correct but which
1462 * Fixed sar -i option which might not select records at the specified
1463 interval on machines with multiple processors.
1464 * NLS updated and cleaned. Do no longer translate fields names (sar,
1465 iostat, etc.). Changed nb_NO.po and nn_NO.po files to nb.po and
1467 * Bug fixed in spec file: when installing sysstat i586 RPM package,
1468 sa1 and sa2 scripts were pointing to the wrong sadc location.
1469 * Now sar and sadc display the magic number when they meet an
1470 invalid system activity file.
1471 * sadf manual page updated.
1472 * sysstat RPM spec file is now included in source package.
1474 * FAQ, Makefile and CREDITS files updated.
1476 2005/01/02: Version 5.1.4 - Sebastien Godard (sysstat <at> wanadoo.fr)
1477 WARNING: Daily data files format has changed, and is *not*
1478 compatible with the previous one! [0x2166]
1479 * NFS client and server statistics added to sar.
1480 * sar -d now only reads stats for devices (and not partitions)
1481 from /proc/partitions. (This is what it was already doing with
1483 * Display routines from sadf merged, so that -ppc and -db
1484 always output the same values.
1485 * sadf updated to handle NFS statistics.
1486 * sadf can now display the header of a data file (option -H).
1487 * Define MAX_BLKDEV in ioconf.h if non-existent in <linux/major.h>.
1488 * sar now looks for sadc in one directory only, specified at
1489 compile time. Moreover it is now possible to have two different
1490 sysstat versions installed: sar knows where its sadc counterpart
1492 * sapath.in removed. SADC_PATH is defined in CONFIG file.
1493 * sar and sadf manual pages updated.
1494 * sysstat.ioconf file updated.
1495 * Fixed a bug in i386 RPM package, where sadc location was not
1496 consistent with that of sar. Spec file updated.
1499 * Various cosmetic changes (code and manual pages). Code cleaned.
1500 * FAQ and CREDITS files updated.
1502 2004/11/22: Version 5.1.3 - Sebastien Godard (sysstat <at> wanadoo.fr)
1503 WARNING: Daily data files format has changed, and is *not*
1504 compatible with the previous one! [0x2165]
1505 * Option -p added to sar: It enables sar (and also sadf) to
1506 display device names as they appear in /dev.
1507 * sysstat.ioconf support added.
1508 * New fields added to sar -d (more disk activities displayed):
1509 avgrq-sz, avgqu-sz, await, svctm, %util.
1510 * sadf updated to handle new disk activities.
1511 * I/O and transfer rate statistics as displayed by sar -b are
1512 available whatever the version of the kernel is (i.e. even on
1514 * Disk stats are read by sadc from /proc/stat only if they cannot
1515 be read from /proc/{partitions,diskstats}.
1516 * sadc: Some variables declarations moved around.
1517 * sar manual page updated.
1518 * Added workaround for EMC PowerPath driver bug to enable iostat
1519 to display proper device name.
1520 * Makefile updated: Use $@ and $< everywhere; 'make {iostat,mpstat}'
1521 work again; Create object files before linking; Removed unused
1522 IOS_DFLAGS variable; Use DESTDIR variable everywhere; Create
1523 libsysioc.a; Install sysstat.ioconf.
1525 * README and CREDITS files updated.
1527 2004/11/05: Version 5.1.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1528 * sar -d now also uses /proc/partitions to get its data.
1529 From now on sar -d looks in the following files in that order:
1530 /proc/diskstats, /proc/partitions, /proc/stat.
1531 * sadc writes disks data to file only if -d option is explicitly
1532 set on the command line.
1533 * sadc now reads individual interrupts data from /proc/stat only
1534 if -I option was entered on the command line.
1535 * 'sar -A' is now equivalent to 'sar -bBcdqrRuvwWy -I SUM -I XALL
1536 -n FULL -P ALL' (i.e. individual interrupts are also included
1538 * Option -m now tells iostat to display statistics in megabytes
1539 per second instead of blocks per second.
1540 * Make history (number of days to keep log files) configurable
1541 in /etc/sysconfig/sysstat file, which is used by sa2 script.
1542 * Now use Vixie cron to launch sadc when possible.
1543 * sadc, sa1 and sa2 may now be installed in another directory
1544 than ${PREFIX}/lib/sa. This is useful on 64-bit systems where
1545 the proper directory should be ${PREFIX}/lib64/sa.
1546 * When uninstalling sysstat, always delete sysstat script,
1547 config file and links in /etc tree. Also always delete
1549 * sysstat script now returns real exit code.
1550 * sar/sadc: Stricter syntax checking for -x and -X options use.
1551 * sysstat "*.sh" files renamed in "*.in".
1553 * sadc and sar manual pages updated.
1556 * CREDITS and README files updated.
1558 2004/10/09: Version 5.1.1 - Sebastien Godard (sysstat <at> wanadoo.fr)
1559 WARNING: Daily data files format has changed, and is *not*
1560 compatible with the previous one! [0x2164]
1561 * sar now reads CPU data, number of context switches, number
1562 of sectors and total number of interrupts as 64-bit unsigned
1563 values. It also reads the number of running processes as
1564 unsigned long instead of unsigned int.
1565 * sadf - System activity data formatter command added.
1566 * Options -h and -H removed from sar. "sar -h" is replaced by
1567 "sadf -p", and "sar -H" is replaced by "sadf -d". Read sadf
1568 manual page, as its syntax is a bit different from that of sar.
1569 * Common code for sar and sadf moved to sa_common.c file.
1570 * pid_stats members don't need to be aligned since these stats
1571 are not written to daily data files. Packing them saves some
1572 memory on 32-bit architectures.
1573 * No longer indicate that -x and -X are possible options for sadc.
1574 They are only useful when used as options for sar, not sadc.
1575 * Minor buffer overrun fixed in iostat.
1576 * Updated CPU header for iostat and mpstat: CPU used while executing
1577 at the system level is displayed as '%system' by iostat (like sar)
1578 and as '%sys' by mpstat.
1579 * sadf manual page added. Other manual pages updated.
1580 * Updated the GPL notices (the address of the FSF was wrong).
1583 * README, FAQ and CREDITS files updated.
1585 2004/08/09: Version 5.0.6 - Sebastien Godard (sysstat <at> wanadoo.fr)
1586 * The value for file-sz reported by sar -v was a number of free
1587 handles, and not a number of used ones! This is now fixed (and
1588 this is really now a number of _used_ file handles).
1589 * Now ask during config stage for the directory where sadc will
1590 be located. This may be useful for some systems where sadc
1591 needs to be installed in a specific location (e.g. on 64 bit
1592 s390 systems, the proper directory should be /usr/lib64/sa).
1593 * sa1 script updated: Use '-' to specify current daily data file
1594 instead of guessing its name using current date.
1595 * NLS updated: be consistent with GNU gettext standards.
1596 * iostat manual page updated.
1599 * CREDITS file updated.
1601 2004/06/08: Version 5.0.5 - Sebastien Godard (sysstat <at> wanadoo.fr)
1602 * Timestamp is no longer limited to 11 characters. This should
1603 avoid problems with somes locales (for example Japanese locale,
1604 where 'mojibake' used to be displayed by sar and mpstat sometimes).
1605 * Fixed a bug in sysstat RPM spec file (symlinks to sysstat
1606 script were wrong in /etc/rc.d directories).
1607 * sar now checks parameters for options -n, -s and -e more
1609 * NLS updated: Japanese translation added.
1610 * Various typos fixed in several files (manual pages, README, etc.)
1611 * CREDITS file updated.
1613 2004/05/20: Version 5.0.4 - Sebastien Godard (sysstat <at> wanadoo.fr)
1614 * When trying to lock file, sadc now checks for both EWOULDBLOCK
1615 and EAGAIN error codes to be portable.
1616 * sar could sometimes display a line whose time stamp was greater
1617 than the limit set by -e option. This is no longer possible.
1618 * The sadc command in sysstat.sh script had to be enclosed in
1619 quotes to work when called via 'su -c'.
1620 * The sysstat.sh script was sending the output of sadc command
1621 to stdout instead of the standard system activity file. This
1623 * Outfile must now be explicitly set to "-" for sadc to use the
1624 standard system activity file.
1626 * iostat manual page updated. Typo fixed in sadc manual page.
1627 * Fixed the "Save picture" option of isag script.
1629 2004/04/07: Version 5.0.3 - Sebastien Godard (sysstat <at> wanadoo.fr)
1630 * iostat now reads the number of sectors in /proc/diskstats or
1631 from sysfs as 64-bit unsigned values.
1632 * iostat and mpstat now read CPU data and the number of
1633 interrupts in /proc/stat as 64-bit unsigned values.
1634 * sar uses "%u" instead of "%d" to read unsigned integer
1635 values _everywhere_.
1636 * sar and sadc are now a little bit more verbose when dealing
1637 with invalid activity files.
1638 * Network interface name size is now read from include file
1641 * Slovak translation added. NLS updated.
1642 * Typo fixed in iostat manual page.
1643 * Makefile and CREDITS file updated.
1644 * isag upgraded to version 1.26 (isag package release 0.81.0).
1646 2004/03/10: Version 5.0.2 - Sebastien Godard (sysstat <at> wanadoo.fr)
1647 * iostat will _again_ look for statistics in /proc/partitions if
1648 available. Too many production servers are still using 2.2.x or
1649 2.4.x kernels and iostat must be able to display extended stats
1650 also for them (/proc/partitions support was removed in sysstat
1651 version 4.1.3). So now, iostat gets its statistics from the
1652 following sources in that order: /proc/diskstats, sysfs,
1653 /proc/partitions and then /proc/stat.
1654 * statistics are now read by iostat and mpstat as unsigned long
1655 instead of int to avoid integer overflow.
1656 * iostat should now handle properly the case when the 'weighted
1657 number of milliseconds spent doing I/Os' (read in sysfs or
1658 /proc/{partitions,diskstats}) decreases with time.
1659 * iostat manual page updated.
1660 * Minor temporary file vulnerability fixed in isag command.
1661 * README, FAQ and CREDITS files updated.
1662 * Author's email changed.
1664 2004/02/02: Version 5.0.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1665 * -L option added to sadc. Enable sadc to lock its output file
1666 to prevent multiple instances from writing to it at once.
1667 * sa1 and sysstat scripts updated to take advantage of -L option.
1668 * Handle the case where, under very special circumstances, STDOUT
1669 may become unavailable, and sar, iostat and mpstat are no longer
1670 able to display anything.
1671 * sadc as called in sysstat script also uses -F option to force
1672 the creation of daily data file.
1673 * sar, sadc and mpstat manual pages updated.
1675 * FAQ and CREDITS files updated.
1677 2003/11/09: Version 5.0.0 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1678 * New fields added to mpstat: %irq (%time spent servicing
1679 interrupts) and %soft (%time spent servicing softirqs).
1680 * sar and iostat updated to take into account time spent servicing
1681 interrupts and softirqs when displaying percentage of time
1683 * By default iostat now displays only statistics information for
1684 devices that are used by the system. You should now use the ALL
1685 keyword to tell iostat to display statistics for every device
1686 including those that have never been used.
1687 * The file version.h is now dynamically created. sysstat's version
1688 number is now only recorded in the Makefile.
1689 * sar manual page updated: beginning with kernels 2.4 and later,
1690 pgpgin and pgpgout statistics are in kilobytes and not in
1691 blocks (see linux-2.4/fs/proc/proc_misc.c and
1692 linux-2.6/mm/page_alloc.c).
1693 * iostat and mpstat manual pages updated.
1694 * Makefile updated: don't process NLS files if they are up-to-date.
1695 * sysstat's RPM spec file updated to enable clean, non-root builds.
1697 * FAQ and CREDITS files updated.
1699 2003/09/28: Version 4.1.7 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1700 WARNING: Daily data files format has changed, and is *not*
1701 compatible with the previous one! [0x2163]
1702 * /proc/diskstats is now the preferred source for iostat to get its
1703 statistics. If non-existent, iostat falls back on sysfs then
1705 * In addition to devices, partitions can also be entered on the
1706 command line for iostat providing that option -x is not used.
1707 * /dev prefix has been removed from device name displayed by iostat -x.
1708 * sar -d now looks for disks statistics in /proc/diskstats with
1710 * sar uses /proc/vmstat file with post 2.5 kernels to find paging
1711 and swapping statistics.
1712 * activepg, inadtypg, inaclnpg and inatarpg stats removed from
1713 sar -B report (they were not really useful).
1714 * sar -B now displays the number of page faults made by the system
1715 (pgfault/s and pgmajflt/s).
1716 * Stat on shared memory removed from sar -r and sar -R (this stat
1717 was no longer maintained by the kernel since 2.4 because of
1718 performance problems).
1719 * Cached swap statistic information added to sar -r.
1720 * sar -d now displays separate statistics for sectors that are
1721 read from or written to devices.
1722 * %file-sz (percentage of used file handles) is no longer displayed
1723 by sar -v, since the upper limit for the number of open files
1724 will self-scale with 2.6 kernels.
1725 * sar now looks more aggressively for network devices in /proc/net/dev.
1726 * Heading spaces in network interface names removed (sar -n).
1727 * Fixed a problem reading /proc/interrupts when there are a lot
1728 of CPUs (mpstat, sadc).
1729 * NR_IRQS value increased to 256, since IA64 supports 256 irqs
1731 * Some stats counters are now read as unsigned long instead of
1732 unsigned int (pgpgin, pgpgout, pswpin, pswpout, irq_sum).
1733 * sar and iostat manual pages updated.
1734 * FAQ, README and CREDITS files updated.
1737 2003/08/20: Version 4.1.6 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1738 WARNING: Daily data files format has changed, and is *not*
1739 compatible with the previous one! [0x2162]
1740 * Machine uptime calculation is now optimized on SMP machines
1741 to minimize the consequences if an overflow condition happens.
1742 Especially useful when asking for stats since system boot.
1743 * -F option added to sadc. Useful to force the creation of the
1744 daily data file: an already existing file with a wrong format
1745 will be truncated by sadc if this option is used.
1746 * sa1 script now calls sadc with -F option.
1747 * The processor number to which the process is attached was no
1748 longer displayed by sar -x. Make it appear again.
1749 * CPU usage for processes, as displayed by sar -x and sar -X, should
1750 now be correct on machines where HZ <> 100 (e.g. IA64 architecture).
1751 * iostat still assumed that jiffies were 100ths of a second in some
1752 places. Now use Linux HZ definition *everywhere*.
1753 * The average I/O requests queue length as displayed by iostat -x was
1754 wrongly calculated. This is now fixed.
1755 * Manual pages updated.
1757 * Cosmetic changes in various parts of the code.
1758 * FAQ, README and CREDITS files updated.
1760 2003/07/21: Version 4.1.5 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1761 WARNING: Daily data files format has changed, and is *not*
1762 compatible with the previous one! Delete existing data files
1763 in /var/log/sa directory! [0x2161]
1764 * 'sar -x <pid>' and 'sar -X <pid>' work again.
1765 * sar had a longstanding bug that prevented option -P from
1766 working properly if the machine had more than 32 processors.
1768 * Fixed a bug introduced in 4.1.2, which made some LINUX RESTART
1769 messages to not be displayed by sar.
1770 * sar now uses bitmap of char instead of int to avoid endianness
1772 * sar can now handle a huge number of processors, serial lines and
1776 2003/07/01: Version 4.1.4 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1777 WARNING: Daily data files format has changed, and is *not*
1778 compatible with the previous one! Delete existing data files
1779 in /var/log/sa directory! [0x2160]
1780 * Fixed the way overflow conditions were handled by sar for
1781 interfaces counters.
1782 * On really big machines with 100 GB of memory or more, the values
1783 read by sadc in /proc/meminfo would get truncated and cause havoc
1784 in the calculations. This is now fixed.
1785 * iostat and sar can now read many more disk entries in /proc/stat if
1787 * Option "-x SUM" removed for sar. It was used to tell sar to display
1788 the total number of minor and major faults made by the system.
1789 Unfortunately, the calculation was tricky, and the results were
1791 * NLS updated. Polish translation added. Also proper charset and
1792 encoding declarations added to fix msgfmt warnings and allow
1793 gettext to recode between various charsets (e.g. German
1794 translation will be shown properly both with
1795 LANG=de_DE.ISO-8859-1, and LANG=de_DE.UTF-8)
1796 * Code 'sanitization'.
1797 * Manual pages updated.
1798 * README and FAQ files updated.
1800 2003/05/08: Version 4.1.3 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1801 * iostat should now be fully 2.5/2.6 kernel compliant.
1802 * Disks arrays in iostat are now dynamically sized.
1803 * iostat: sysfs is now used in preference to /proc/stat if available.
1804 * iostat will no longer look for statistics in /proc/partitions.
1805 sysfs filesystem must now be available for iostat to get its
1806 extended stats (post 2.5 kernels).
1807 * iostat: Devices for which statistics are requested can now be entered
1808 on the command line even if option -x is not used.
1809 * Usage messages updated.
1810 * Manual pages updated.
1811 * Code cleaned (dk_drive_sum removed in iostat, long lines folded,
1812 functions split in smaller parts, etc.)
1813 * NLS updated. Romanian translation added.
1814 * isag upgraded to version 1.22.
1816 2003/01/24: Version 4.1.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1817 WARNING: Daily data files format has changed, and is *not*
1818 compatible with the previous one! Delete existing data files
1819 in /var/log/sa directory! [0x215f]
1820 * sar -q now also displays load average for the past 15 minutes.
1821 * -P option added to sar. This option enables sar to display
1822 stats on a per processor basis. Options -U and '-I PROC' are
1823 deprecated. 'sar -U ALL' is replaced by 'sar -u -P ALL', and
1824 'sar -I PROC' by 'sar -I SUM -P ALL'.
1825 * Fixed iowait value displayed by sar on SMP machines with pre 2.5
1827 * When displaying CPU utilization on SMP machines, sar now
1828 recalculates the interval based on current CPU's tick count.
1829 * Always check that the number of CPUs has not increased when
1830 reading /proc/stat (sadc, mpstat).
1831 * sadc: Don't assume that the first line in /proc/net/sockstat
1832 concerns sockets. Check it!
1833 * Serial lines are ignored by sadc for every kind of kernels
1834 (UP, SMP...) if SMP_RACE is defined.
1835 SMP_RACE is no longer defined by default in RPM packages.
1836 * Code cleaned: Dead code removed in iostat.c, some lines longer
1837 than 80 chars folded, etc.
1838 * sar manual page updated.
1842 2003/01/02: Version 4.1.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1843 WARNING: Daily data files format has changed, and is *not*
1844 compatible with the previous one! Delete existing data files
1845 in /var/log/sa directory! [0x215e]
1846 * sar -u/-U, iostat and mpstat can now display time spent in
1847 I/O wait mode (with 2.5 kernels and above).
1848 * Values like -1 and -2 are no longer aliases for keywords
1849 ALL and XALL (sar -U, sar -I, mpstat -P).
1850 * Buglet fixed in iostat.h.
1851 * LC_CTYPE needs to be set, or it will emit messages with ?????? only
1852 on some locales, especially ja_JP.eucJP
1853 * sar, mpstat and iostat manual pages updated.
1855 * CREDITS file updated.
1856 * Typo removed in FAQ file.
1858 2002/11/13: Version 4.0.7 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1859 * Make data for timestamp 00:00:00 appear in one of the daily data
1860 files when sar/sadc rotates its output file.
1861 * Take out check for non SMP configuration when asking for
1863 * sargon script updated.
1866 2002/08/04: Version 4.0.6 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1867 * mpstat now uses a bitmap of char instead of int to avoid endianness
1868 problems. As a consequence, mpstat should now work on PowerMac
1870 * CPU activity as displayed by mpstat -P for a given processor was
1871 in a wrong range on SMP machines (e.g. 0-50% for a dual processor
1873 * Missing bitmap initialization fixed in mpstat.c.
1874 * Configuration script updated.
1877 2002/05/12: Version 4.0.5 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1878 * Average wait times and service times as displayed by iostat -x
1879 were wrong by a factor of 10. This is now fixed.
1880 * Linux RESTART messages must now be in the interval specified by
1881 -s/-e options to be displayed by sar.
1882 * Fixed a small bug that affected the timestamp for RESTART messages
1883 displayed by sar -h when option -t was used.
1884 * sar -H now displays its data in local time instead of UTC when
1886 * sargon shell script added.
1887 * Created a contrib directory, including sargon and isag commands.
1891 * sar manual page updated.
1893 2002/04/07: Version 4.0.4 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1894 * iostat is now able to display I/O activity in kB/s with 2.4.x
1895 kernels (option -k).
1896 * Fixed a typo in 'sar -W -h' output.
1897 * Try to handle the case when some parameters in /proc/net/dev
1898 may overflow ULONG_MAX.
1899 * 'sar -d' now displays sectors per second instead of blocks
1901 * iostat and sar manual pages updated.
1903 * NLS updated: Russian translation added.
1905 2002/01/27: Version 4.0.3 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1906 * iostat now displays statistics in kB/s when option -x is used.
1907 * Configuration script updated.
1908 * sar and iostat manual pages updated.
1909 * umask also set in sa1 shell script.
1910 * Various sanity checks added.
1911 * Fixed potential segmentation faults that could happen with some
1913 * KB (standing for kilobytes) replaced with kB in various places.
1914 * NLS updated: Italian translation added.
1916 2001/09/22: Version 4.0.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1917 * CPU usage, as displayed by iostat, mpstat and sar, should now
1918 be OK on machines where HZ <> 100 (e.g. IA64 architecture).
1919 * MAX_PART constant set to 256 in iostat.h.
1920 * "-H" database friendly option added to sar.
1921 * Better disks and network interfaces management (both may be
1922 registered dynamically).
1923 * Made options "-s" and "-e" work when option "-h" is used.
1924 * isag upgraded to version 1.17.
1925 * isag installation is now optional and can be chosen at config stage.
1926 * Now try to install man pages in ${PREFIX}/share/man instead of
1928 * sa2 shell script updated.
1929 * Configuration script updated.
1930 * sar manual page updated.
1931 * NLS updated: Norwegian translation added.
1933 2001/06/24: Version 4.0.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1934 * Files created by sa2 shell script were world writable. This is
1936 * sa2.sh shell script updated: only remove sa?? and sar?? files.
1937 * Don't use PAGE_SHIFT since it no longer necessarily exists in
1938 <asm/page.h>. Compute it using page size instead.
1939 * Cosmetic changes for iostat.
1940 * NLS updated: Afrikaans translation added.
1942 2001/04/08: Version 4.0.0 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1943 * Better network interfaces handling. Now take into account the
1944 fact that they may be registered/unregistered dynamically.
1945 * Changed formula used to display statistics in order to avoid
1946 overflow conditions.
1947 * Fixed a bug in iostat, where the %util value scaled incorrectly.
1948 * Better long file names management by iostat.
1949 * mpstat and sar no longer periodically display the title line when
1950 stdout has been redirected to a pipe or a file.
1951 * sa2.sh shell script updated: Now exec sadc.
1952 * Configuration script updated.
1955 * Manual pages updated.
1956 * isag command updated.
1958 2001/03/04: Version 3.3.6 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1959 WARNING: Daily data files format has changed, and is *not*
1960 compatible with the previous one! Delete existing data files
1961 in /var/log/sa directory! [0x215d]
1962 * New paging statistics added (sar -B). Kernel 2.4 only.
1963 * Load averages and queue length statistics added (option -q for sar).
1964 * Per device statistics added (option -d for sar). Kernel 2.4 only.
1965 * Better accuracy when computing average for some statistics.
1966 * Display all the contents of a daily data file when the count
1967 parameter is not given on the command line.
1968 * Check sar command line options more aggressively.
1969 * iostat no longer freezes if -c and -d options are used together.
1970 * Fixed a bug that prevented iostat from displaying more than an
1971 average of three devices with 2.4 kernels (a buffer was too small).
1972 * Check added to ensure that sar and sadc commands are consistent.
1973 * sar manual page updated.
1975 * Code cleaned (use smaller subroutines).
1977 * isag command updates.
1979 2001/02/11: Version 3.3.5 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1980 * iostat command improved. Take now full advantage of Stephen
1981 Tweedie's I/O accounting patch to display extended statistics
1983 * The default value for the count parameter of the sar command is
1984 now 1 (this is how sar works with other Un*xes...). A value of
1985 0 will indicate that reports are to be generated continuously.
1986 * Code cleaned: Now always use 'double' numbers instead of the
1987 INT_PART, INT_VAL, DEC_PART and DEC_VAL macros.
1988 * Don't assume that jiffies are 100ths of a second. Use Linux
1989 HZ definition instead.
1990 * NLS updated (small fix).
1991 * sar and iostat manual pages updated.
1992 * isag (Interactive System Activity Graph) command added.
1995 2001/01/26: Version 3.3.4 - Sebastien Godard <sebastien.godard@wanadoo.fr>
1996 * Disk I/O statistics for the last device were counted twice when
1997 reading /proc/stat file with 2.4 kernels (sar -b). This is now
1999 * iostat command is no longer able to save its data to a file.
2000 In fact, iostat has never been supposed to work that way, and I
2001 have never really maintained this option.
2002 * iostat now also works with 2.4 kernels. It can handle the format
2003 of the /proc/stat file for both 2.2 and 2.4 kernels.
2004 * sar now reports statistics on allocated disk quotas entries
2005 instead of on used ones (sar -v).
2006 * Manual pages updated for sar and iostat.
2008 2000/12/31: Version 3.3.3 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2009 WARNING: Daily data files format has changed, and is *not*
2010 compatible with the previous one! Delete existing data files
2011 in /var/log/sa directory!
2012 * Disk usage displayed by iostat on SMP machines was wrong. This
2014 * iostat command cleaned: All the statistics not implemented in
2015 the standard Linux kernel have been removed (tty, iowait...).
2016 * sar can now handle I/O and transfer rate statistics with both
2017 2.2.x and 2.4.x Linux kernels (-b option).
2018 * Removed %inode-sz that was displayed by sar -v, since the file
2019 inode-max in /proc/sys/fs no longer exists in Linux 2.4.
2020 The new 2.4.x kernels now seem to be able to allocate inode
2021 structures dynamically, and to free them when necessary (see
2023 * Removed statistics on highest in-used sockets. Relevant
2024 counters have disappeared from sockstat file in /proc/net
2025 for 2.4 kernels (sar -n SOCK).
2026 * Added statistics on IP datagram fragments (sar -n SOCK).
2027 Only available for 2.4 kernels.
2029 2000/11/19: Version 3.3.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2030 * sar now saves timestamps in its daily data files both in UST
2031 and in the user's timezone formats.
2032 WARNING: Daily data files format has changed, and is *not*
2033 compatible with the previous one!
2034 * sar now displays timestamps in locale time when reading data
2035 from its daily data files. -t option has been added to sar,
2036 to enable it to display timestamps in the original locale
2037 time of the data file creator.
2038 * Size of various buffers made larger.
2039 * Number of interrupts per second for 'all' CPU displayed by the
2040 mpstat command was wrong. This is now fixed.
2042 * Usage message updated.
2044 2000/09/17: Version 3.3.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2045 * mpstat command added.
2046 * Manual page added for mpstat.
2047 * Option -h added, enabling sar to display data from a daily data
2048 file in a format that can easily be handled with pattern
2049 processing commands like awk.
2050 * Manual page updated for sar.
2051 * iostat now writes KB (for kilobytes) instead of Kb, which could
2052 have been interpreted as kilobits...
2053 * Disk accounting patch for iostat removed.
2056 2000/08/06: Version 3.2.4 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2057 * Fixed a bug that prevented sar from reading its daily data files
2058 when they had been created using -I option.
2059 * Network statistics averages were sometimes wrong when reading
2060 data from a file. This is now fixed.
2061 * README-patch file updated.
2062 * Configuration script updated to deal with Debian directories.
2064 2000/06/25: Version 3.2.3 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2065 * Configuration scripts updated. Can now print a help message.
2066 * Workaround for SMP race in Linux serial driver added.
2067 This workaround is enabled by default in RPM binary packages.
2068 * sar manual page updated.
2069 * Added iostat disk accounting patch against 2.2.16 linux kernel.
2070 * Removed a few typos in the comments of the source code.
2072 2000/06/11: Version 3.2.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2073 * Now handle interrupts per processor better. Output improved.
2074 * Makefile modified to comply with redhat good packaging.
2075 * sysstat initialization script updated (don't su to root when
2076 we are already root).
2077 * sar now looks for sadc data collector in more places.
2078 * NLS is now enabled by default.
2079 * Silly bug in iostat disk accounting patch fixed.
2080 * Added iostat disk accounting patch against 2.2.15 linux kernel.
2082 2000/04/02: Version 3.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2083 * sadc no longer complains when daily data files have a null length.
2084 * Configuration script added (make config).
2085 * Statistics on sockets in use added.
2086 * Got rid of various limits (maximum number of serial lines,
2087 maximum number of network interfaces).
2088 * Better management of dynamic files contents.
2089 * Cosmetic change for timestamp display.
2090 * Manual pages updated.
2091 * Documentation added in ${PREFIX}/doc/sysstat-x.y.
2093 2000/02/20: Version 3.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2094 * Fixed a bug that made average numbers wrong for some statistics
2095 when reading them from a system activity file.
2096 * Fixed a bug that prevented the user from retrieving some
2097 statistics when reading them from a system activity file.
2098 * sadc no longer core-dumps on UP machines with SMP support enabled
2100 * System activity files are now readable by everybody.
2101 * Average statistics since boot time are now printed when interval
2102 parameter is set to 0. If interval and count parameters are not
2103 set on the command line, sar selects requested activities from
2104 the current system activity daily data file.
2105 * sadc, sa1 and sa2 manual pages moved to chapter 8 instead of 1m.
2106 * iostat disk accounting patch modified to work with md drivers.
2108 2000/01/30: Version 3.0 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2109 * sadc - system activity data collector added.
2110 * sa1, sa2 and sysstat.sh shell scripts added.
2111 * Manual pages added for sadc, sa1, sa2.
2112 * sar heavily modified to use stats sent by sadc.
2113 * System activity data file now records system restarts.
2114 * Every records in the iostat and system activity data files have
2115 their own timestamp now.
2116 * sar and iostat largely modified to use structures when reading or
2118 * Per-process statistics added.
2119 * System minor and major fault statistics added.
2120 * TTY device statistics added.
2121 * Memory and swap space utilization statistics added.
2122 * Per-processor interrupt statistics added.
2123 * Statistics for kernel parameters (dcache, inodes, superblocks, etc.)
2125 * Network device statistics added.
2126 * S_TIME_FORMAT environment variable added.
2127 * Meaning of -i option has changed for sar.
2128 * -d option removed for sar since it is no longer needed (we have
2130 * sar now uses keywords such as ALL, SUM, etc. instead of numerical
2132 * iostat disk accounting patch improved.
2133 * 'page' field in /proc/stat is no longer used by iostat (was
2135 * Workaround for buggy RTC (or kernels?) added. Used when the number
2136 of jiffies spent by the system in the idle task is decreasing in
2138 * Manual pages updated.
2139 * NLS updated: Portuguese translation added.
2142 1999/11/28: Version 2.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2143 * Option -d added to sar to enable it to be started as a daemon.
2144 * sar initialization script updated to use -d option.
2145 * Option -V added to sar and iostat (print version number and usage).
2146 * Fixed a bug that made CPU utilization displayed by iostat wrong on
2148 * Manual pages updated and moved to chapter 1 instead of 8.
2149 * sar '-m' option renamed to '-r'.
2150 * Display improved for iostat.
2151 * NLS updated: Spanish translation added.
2152 * Patch against kernel 2.2.13 added for iostat.
2154 1999/10/24: Version 2.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2155 * The sar and iostat commands can now work on non SMP-machines even
2156 if the kernel is compiled with SMP support enabled.
2157 * Fixed a bug that made the time displayed by iostat wrong when
2158 reading stats back from a file.
2159 * Added memory statistics: free/shared/buffer/cached pages (sar -m).
2160 * Option -h added to sar to print its header periodically.
2161 * Set unavailable fields to zero when writing iostat file.
2162 * sar now displays 'proc/s' instead of 'fork/s' since exec'ed
2163 processes are also taken into account.
2164 * Manual pages updated.
2165 * sysstat is now available in RPM format.
2166 * Code cleaned up and made safer.
2168 1999/09/19: Version 2.0 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2169 * iostat now displays logical block I/O stats for each IDE device, or
2170 global Kb/s rate for all the block devices. Stats in Kb/s for each
2171 block device are not available for standard kernels due to Linux
2172 poor disk accounting... Anyway a patch is provided in this version
2173 of 'sysstat' in the 'patch' directory to fix that.
2174 * System uptime is no longer read in /proc/uptime but computed from
2175 the cpu line in /proc/stat.
2176 * When stats are read from a file (option -f of iostat and sar),
2177 values are now computed in accordance with the interval given by
2178 the user on the command line.
2179 * Old '-o' option for iostat removed. Now iostat can save data
2180 into a file in a binary format and re-read them later (options
2181 '-o' and '-f') in the same way sar does.
2182 * Number of available processors now taken into account when
2183 retrieving CPU usage from /proc/stat.
2184 * Removed a bug that prevented 'sar -U' to work on SMP machines.
2185 * Fixed a bug that made per-CPU average usage wrong on SMP machines.
2186 * Use of option -U is now possible for sar when reading from a file
2187 even if the machine is not an SMP one.
2188 * Fixed a bug that prevented sar from re-reading stats saved in a file
2189 when -I or -U option had been used.
2190 * iostat modified to work on SMP machines.
2191 * Changed the formula used to display stats in order not to get
2192 numbers greater than UINT_MAX.
2193 * System name, release number and hostname are now saved in
2194 system activity files.
2195 * iostat now displays system name, release number and hostname
2197 * Daily system activity file rotation added for sar.
2198 * Improved 64-bit system support.
2199 * CREDITS file added.
2200 * NLS updated: German translation added.
2201 * Manual pages updated.
2202 * Makefile updated: Do not call msgfmt if NLS is not enabled.
2204 1999/06/25: Version 1.2 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2205 * Better NLS support (date, time and numerical values, NLS enabled
2207 * System activity daily file structure changed: Is now independent of
2208 the locale and is more compact.
2209 * sar updated to support SMP machines (per CPU accounting).
2210 * Code cleaned, man pages updated...
2212 1999/05/28: Version 1.1 - Sebastien Godard <sebastien.godard@wanadoo.fr>
2213 * NLS support added. French translation started but needs to be
2215 * sar updated to support more than 16 interrupts (potential APIC
2217 * A few typos removed (man pages, etc.).
2218 * Author email address updated :-)
2219 * Tested on kernel 2.2.5.
2221 1999/03/06: Version 1.0 - Sebastien Godard <sebastien.godard@gazdefrance.com>
2222 * Initial Revision. Tested on kernel 2.0.36.
projects / sysstat / blob