2 * sar and sadf common routines.
3 * (C) 1999-2022 by Sebastien GODARD (sysstat <at> orange.fr)
5 ***************************************************************************
6 * This program is free software; you can redistribute it and/or modify it *
7 * under the terms of the GNU General Public License as published by the *
8 * Free Software Foundation; either version 2 of the License, or (at your *
9 * option) any later version. *
11 * This program is distributed in the hope that it will be useful, but *
12 * WITHOUT ANY WARRANTY; without the implied warranty of MERCHANTABILITY *
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
16 * You should have received a copy of the GNU General Public License along *
17 * with this program; if not, write to the Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA *
19 ***************************************************************************
28 #include <unistd.h> /* For STDOUT_FILENO, among others */
33 #include <sys/types.h>
44 #define _(string) gettext(string)
46 #define _(string) (string)
49 int default_file_used = FALSE;
50 extern struct act_bitmap cpu_bitmap;
51 extern unsigned int dm_major;
53 unsigned int hdr_types_nr[] = {FILE_HEADER_ULL_NR, FILE_HEADER_UL_NR, FILE_HEADER_U_NR};
54 unsigned int act_types_nr[] = {FILE_ACTIVITY_ULL_NR, FILE_ACTIVITY_UL_NR, FILE_ACTIVITY_U_NR};
55 unsigned int rec_types_nr[] = {RECORD_HEADER_ULL_NR, RECORD_HEADER_UL_NR, RECORD_HEADER_U_NR};
56 unsigned int extra_desc_types_nr[] = {EXTRA_DESC_ULL_NR, EXTRA_DESC_UL_NR, EXTRA_DESC_U_NR};
59 ***************************************************************************
60 * Look for activity in array.
63 * @act Array of activities.
64 * @act_flag Activity flag to look for.
65 * @stop TRUE if sysstat should exit when activity is not found.
68 * Position of activity in array, or -1 if not found (this may happen when
69 * reading data from a system activity file created by another version of
71 ***************************************************************************
73 int get_activity_position(struct activity *act[], unsigned int act_flag, int stop)
77 for (i = 0; i < NR_ACT; i++) {
78 if (act[i]->id == act_flag)
83 PANIC((int) act_flag);
90 ***************************************************************************
91 * Count number of activities with given option.
94 * @act Array of activities.
95 * @option Option that activities should have to be counted
96 * (eg. AO_COLLECTED...)
97 * @count Set to COUNT_OUTPUTS if each output should be counted for
98 * activities with multiple outputs.
101 * Number of selected activities
102 ***************************************************************************
104 int get_activity_nr(struct activity *act[], unsigned int option, enum count_mode count)
109 for (i = 0; i < NR_ACT; i++) {
110 if ((act[i]->options & option) == option) {
112 if (HAS_MULTIPLE_OUTPUTS(act[i]->options) && (count == COUNT_OUTPUTS)) {
113 for (msk = 1; msk < 0x100; msk <<= 1) {
114 if ((act[i]->opt_flags & 0xff) & msk) {
129 ***************************************************************************
130 * Look for the most recent of saDD and saYYYYMMDD to decide which one to
131 * use. If neither exists then use saDD by default.
134 * @sa_dir Directory where standard daily data files are saved.
135 * @rectime Structure containing the current date.
138 * @sa_name 0 to use saDD data files,
139 * 1 to use saYYYYMMDD data files.
140 ***************************************************************************
142 void guess_sa_name(char *sa_dir, struct tm *rectime, int *sa_name)
144 char filename[MAX_FILE_LEN];
149 /* Use saDD by default */
152 /* Look for saYYYYMMDD */
153 snprintf(filename, sizeof(filename),
154 "%s/sa%04d%02d%02d", sa_dir,
155 rectime->tm_year + 1900,
158 filename[sizeof(filename) - 1] = '\0';
160 if (stat(filename, &sb) < 0)
161 /* Cannot find or access saYYYYMMDD, so use saDD */
163 sa_mtime = sb.st_mtime;
164 nsec = sb.st_mtim.tv_nsec;
167 snprintf(filename, sizeof(filename),
170 filename[sizeof(filename) - 1] = '\0';
172 if (stat(filename, &sb) < 0) {
173 /* Cannot find or access saDD, so use saYYYYMMDD */
178 if ((sa_mtime > sb.st_mtime) ||
179 ((sa_mtime == sb.st_mtime) && (nsec > sb.st_mtim.tv_nsec))) {
180 /* saYYYYMMDD is more recent than saDD, so use it */
186 ***************************************************************************
187 * Set current daily data file name.
190 * @datafile If not an empty string then this is the alternate directory
191 * location where daily data files will be saved.
192 * @d_off Day offset (number of days to go back in the past).
193 * @sa_name 0 for saDD data files,
194 * 1 for saYYYYMMDD data files,
195 * -1 if unknown. In this case, will look for the most recent
196 * of saDD and saYYYYMMDD and use it.
199 * @datafile Name of daily data file.
200 ***************************************************************************
202 void set_default_file(char *datafile, int d_off, int sa_name)
204 char sa_dir[MAX_FILE_LEN];
205 struct tm rectime = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL};
208 /* Set directory where daily data files will be saved */
210 strncpy(sa_dir, datafile, sizeof(sa_dir));
213 strncpy(sa_dir, SA_DIR, sizeof(sa_dir));
215 sa_dir[sizeof(sa_dir) - 1] = '\0';
217 get_time(&rectime, d_off);
220 * Look for the most recent of saDD and saYYYYMMDD
221 * and use it. If neither exists then use saDD.
222 * sa_name is set accordingly.
224 guess_sa_name(sa_dir, &rectime, &sa_name);
227 /* Using saYYYYMMDD data files */
228 err = snprintf(datafile, MAX_FILE_LEN,
229 "%s/sa%04d%02d%02d", sa_dir,
230 rectime.tm_year + 1900,
235 /* Using saDD data files */
236 err = snprintf(datafile, MAX_FILE_LEN,
240 datafile[MAX_FILE_LEN - 1] = '\0';
242 if ((err < 0) || (err >= MAX_FILE_LEN)) {
243 fprintf(stderr, "%s: %s\n", __FUNCTION__, datafile);
247 default_file_used = TRUE;
250 fprintf(stderr, "%s: Datafile: %s\n", __FUNCTION__, datafile);
255 ***************************************************************************
256 * Check data file type. If it is a directory then this is the alternate
257 * location where daily data files will be saved.
260 * @datafile Name of the daily data file. May be a directory.
261 * @d_off Day offset (number of days to go back in the past).
262 * @sa_name 0 for saDD data files,
263 * 1 for saYYYYMMDD data files,
264 * -1 if unknown. In this case, will look for the most recent
265 * of saDD and saYYYYMMDD and use it.
269 * @datafile Name of the daily data file. This is now a plain file, not
273 * 1 if @datafile was a directory, and 0 otherwise.
274 ***************************************************************************
276 int check_alt_sa_dir(char *datafile, int d_off, int sa_name)
278 if (check_dir(datafile)) {
280 * This is a directory: So append
281 * the default file name to it.
283 set_default_file(datafile, d_off, sa_name);
291 ***************************************************************************
292 * Display sysstat version used to create system activity data file.
295 * @st Output stream (stderr or stdout).
296 * @file_magic File magic header.
297 ***************************************************************************
299 void display_sa_file_version(FILE *st, struct file_magic *file_magic)
301 fprintf(st, _("File created by sar/sadc from sysstat version %d.%d.%d"),
302 file_magic->sysstat_version,
303 file_magic->sysstat_patchlevel,
304 file_magic->sysstat_sublevel);
306 if (file_magic->sysstat_extraversion) {
307 fprintf(st, ".%d", file_magic->sysstat_extraversion);
313 ***************************************************************************
314 * An invalid system activity file has been opened for reading.
315 * If this file was created by an old version of sysstat, tell it to the
319 * @fd Descriptor of the file that has been opened.
320 * @file_magic file_magic structure filled with file magic header data.
321 * May contain invalid data.
322 * @file Name of the file being read.
323 * @n Number of bytes read while reading file magic header.
324 * This function may also be called after failing to read file
325 * standard header, or if CPU activity has not been found in
326 * file. In this case, n is set to 0.
327 ***************************************************************************
329 void handle_invalid_sa_file(int fd, struct file_magic *file_magic, char *file,
332 unsigned short fmt_magic;
334 fprintf(stderr, _("Invalid system activity file: %s\n"), file);
336 if (n == FILE_MAGIC_SIZE) {
337 if ((file_magic->sysstat_magic == SYSSTAT_MAGIC) || (file_magic->sysstat_magic == SYSSTAT_MAGIC_SWAPPED)) {
338 /* This is a sysstat file, but this file has an old format */
339 display_sa_file_version(stderr, file_magic);
341 fmt_magic = file_magic->sysstat_magic == SYSSTAT_MAGIC ?
342 file_magic->format_magic : __builtin_bswap16(file_magic->format_magic);
344 _("Current sysstat version cannot read the format of this file (%#x)\n"),
346 if (fmt_magic >= FORMAT_MAGIC_2171) {
348 _("Try to convert it to current format. Enter:\n\n"));
349 fprintf(stderr, "sadf -c %s > %s.new\n\n", file, file);
351 _("You should then be able to read the new file created (%s.new)\n"),
362 ***************************************************************************
363 * Display an error message then exit.
364 ***************************************************************************
366 void print_collect_error(void)
368 fprintf(stderr, _("Requested activities not available\n"));
373 ***************************************************************************
374 * Fill system activity file magic header.
377 * @file_magic System activity file magic header.
378 ***************************************************************************
380 void enum_version_nr(struct file_magic *fm)
385 fm->sysstat_extraversion = 0;
387 strcpy(version, VERSION);
389 /* Get version number */
390 if ((v = strtok(version, ".")) == NULL)
392 fm->sysstat_version = atoi(v) & 0xff;
394 /* Get patchlevel number */
395 if ((v = strtok(NULL, ".")) == NULL)
397 fm->sysstat_patchlevel = atoi(v) & 0xff;
399 /* Get sublevel number */
400 if ((v = strtok(NULL, ".")) == NULL)
402 fm->sysstat_sublevel = atoi(v) & 0xff;
404 /* Get extraversion number. Don't necessarily exist */
405 if ((v = strtok(NULL, ".")) == NULL)
407 fm->sysstat_extraversion = atoi(v) & 0xff;
411 ***************************************************************************
412 * Write data to file. If the write() call was interrupted by a signal, try
413 * again so that the whole buffer can be written.
416 * @fd Output file descriptor.
418 * @nr_bytes Number of bytes to write.
421 * Number of bytes written to file, or -1 on error.
422 ***************************************************************************
424 int write_all(int fd, const void *buf, int nr_bytes)
426 int block, offset = 0;
427 char *buffer = (char *) buf;
429 while (nr_bytes > 0) {
431 block = write(fd, &buffer[offset], nr_bytes);
450 ***************************************************************************
451 * Allocate structures.
454 * @act Array of activities.
455 ***************************************************************************
457 void allocate_structures(struct activity *act[])
461 for (i = 0; i < NR_ACT; i++) {
463 if (act[i]->nr_ini > 0) {
465 /* Look for a possible overflow */
466 check_overflow((unsigned int) act[i]->msize,
467 (unsigned int) act[i]->nr_ini,
468 (unsigned int) act[i]->nr2);
470 for (j = 0; j < 3; j++) {
471 SREALLOC(act[i]->buf[j], void,
472 (size_t) act[i]->msize * (size_t) act[i]->nr_ini * (size_t) act[i]->nr2);
474 act[i]->nr_allocated = act[i]->nr_ini;
480 ***************************************************************************
484 * @act Array of activities.
485 ***************************************************************************
487 void free_structures(struct activity *act[])
491 for (i = 0; i < NR_ACT; i++) {
492 if (act[i]->nr_allocated > 0) {
493 for (j = 0; j < 3; j++) {
494 if (act[i]->buf[j]) {
495 free(act[i]->buf[j]);
496 act[i]->buf[j] = NULL;
499 act[i]->nr_allocated = 0;
505 ***************************************************************************
506 * Reallocate all the buffers for a given activity.
509 * @a Activity whose buffers need to be reallocated.
510 * @nr_min Minimum number of items that the new buffers should be able
512 ***************************************************************************
514 void reallocate_all_buffers(struct activity *a, __nr_t nr_min)
522 if (!a->nr_allocated) {
526 nr_realloc = a->nr_allocated;
528 nr_realloc = nr_realloc * 2;
530 while (nr_realloc < nr_min);
533 /* Look for a possible overflow */
534 check_overflow((unsigned int) a->msize, (unsigned int) nr_realloc,
535 (unsigned int) a->nr2);
537 for (j = 0; j < 3; j++) {
538 SREALLOC(a->buf[j], void,
539 (size_t) a->msize * nr_realloc * (size_t) a->nr2);
540 /* Init additional space which has been allocated */
541 if (a->nr_allocated) {
542 memset(a->buf[j] + a->msize * a->nr_allocated * a->nr2, 0,
543 (size_t) a->msize * (size_t) (nr_realloc - a->nr_allocated) * (size_t) a->nr2);
547 a->nr_allocated = nr_realloc;
551 ***************************************************************************
552 * Check if we are close enough to desired interval.
555 * @uptime_ref Uptime used as reference. This is the system uptime for the
556 * first sample statistics, or the first system uptime after a
557 * LINUX RESTART (in 1/100th of a second).
558 * @uptime Current system uptime (in 1/100th of a second).
559 * @reset TRUE if @last_uptime should be reset with @uptime_ref.
560 * @interval Interval of time.
563 * TRUE if we are actually close enough to desired interval, FALSE otherwise.
564 ***************************************************************************
566 int next_slice(unsigned long long uptime_ref, unsigned long long uptime,
567 int reset, long interval)
569 unsigned long file_interval, entry;
570 static unsigned long long last_uptime = 0;
571 int min, max, pt1, pt2;
574 /* uptime is expressed in 1/100th of a second */
575 if (!last_uptime || reset) {
576 last_uptime = uptime_ref;
579 /* Interval cannot be greater than 0xffffffff here */
580 f = ((double) ((uptime - last_uptime) & 0xffffffff)) / 100;
581 file_interval = (unsigned long) f;
582 if ((f * 10) - (file_interval * 10) >= 5) {
583 file_interval++; /* Rounding to correct value */
586 last_uptime = uptime;
589 /* Smallest time interval: Always close enough to desired interval */
593 * A few notes about the "algorithm" used here to display selected entries
594 * from the system activity file (option -f with -i flag):
595 * Let Iu be the interval value given by the user on the command line,
596 * In the interval between current and previous sample,
597 * and En the current sample (identified by its time stamp) in the file.
598 * En will ne displayed if there is an integer p so that:
599 * p * Iu belongs to [En - In/2, En + In/2[.
601 f = ((double) ((uptime - uptime_ref) & 0xffffffff)) / 100;
602 entry = (unsigned long) f;
603 if ((f * 10) - (entry * 10) >= 5) {
607 min = entry - (file_interval / 2);
608 max = entry + (file_interval / 2) + (file_interval & 0x1);
609 pt1 = (entry / interval) * interval;
610 pt2 = ((entry / interval) + 1) * interval;
612 return (((pt1 >= min) && (pt1 < max)) || ((pt2 >= min) && (pt2 < max)));
616 ***************************************************************************
617 * Use time stamp to fill tstamp structure.
620 * @timestamp Timestamp to decode (format: HH:MM:SS).
623 * @tse Structure containing the decoded timestamp.
626 * 0 if the timestamp has been successfully decoded, 1 otherwise.
627 ***************************************************************************
629 int decode_timestamp(char timestamp[], struct tstamp *tse)
631 timestamp[2] = timestamp[5] = '\0';
632 tse->tm_sec = atoi(×tamp[6]);
633 tse->tm_min = atoi(×tamp[3]);
634 tse->tm_hour = atoi(timestamp);
636 if ((tse->tm_sec < 0) || (tse->tm_sec > 59) ||
637 (tse->tm_min < 0) || (tse->tm_min > 59) ||
638 (tse->tm_hour < 0) || (tse->tm_hour > 23))
647 ***************************************************************************
648 * Compare two timestamps.
651 * @rectime Date and time for current sample.
652 * @tse Timestamp used as reference.
653 * @cross_day TRUE if a new day has been started.
656 * A positive value if @rectime is greater than @tse,
657 * a negative one otherwise.
658 ***************************************************************************
660 int datecmp(struct tm *rectime, struct tstamp *tse, int cross_day)
662 int tm_hour = rectime->tm_hour;
666 * This is necessary if we want to properly handle something like:
667 * sar -s time_start -e time_end with
668 * time_start(day D) > time_end(day D+1)
673 if (tm_hour == tse->tm_hour) {
674 if (rectime->tm_min == tse->tm_min)
675 return (rectime->tm_sec - tse->tm_sec);
677 return (rectime->tm_min - tse->tm_min);
680 return (tm_hour - tse->tm_hour);
684 ***************************************************************************
685 * Parse a timestamp entered on the command line (hh:mm[:ss]) and decode it.
688 * @argv Arguments list.
689 * @opt Index in the arguments list.
690 * @def_timestamp Default timestamp to use.
693 * @tse Structure containing the decoded timestamp.
696 * 0 if the timestamp has been successfully decoded, 1 otherwise.
697 ***************************************************************************
699 int parse_timestamp(char *argv[], int *opt, struct tstamp *tse,
700 const char *def_timestamp)
704 if (argv[++(*opt)]) {
705 switch (strlen(argv[*opt])) {
708 strncpy(timestamp, argv[(*opt)++], 5);
710 strcat(timestamp, ":00");
714 strncpy(timestamp, argv[(*opt)++], 8);
718 strncpy(timestamp, def_timestamp, 8);
722 strncpy(timestamp, def_timestamp, 8);
726 return decode_timestamp(timestamp, tse);
730 ***************************************************************************
731 * Set interval value.
734 * @record_hdr_curr Record with current sample statistics.
735 * @record_hdr_prev Record with previous sample statistics.
738 * @itv Interval of time in 1/100th of a second.
739 ***************************************************************************
741 void get_itv_value(struct record_header *record_hdr_curr,
742 struct record_header *record_hdr_prev,
743 unsigned long long *itv)
745 /* Interval value in jiffies */
746 *itv = get_interval(record_hdr_prev->uptime_cs,
747 record_hdr_curr->uptime_cs);
751 ***************************************************************************
752 * Fill the rectime structure with the file's creation date, based on file's
753 * time data saved in file header.
754 * The resulting timestamp is expressed in the locale of the file creator or
755 * in the user's own locale, depending on whether option -t has been used
759 * @flags Flags for common options and system state.
760 * @file_hdr System activity file standard header.
763 * @rectime Date (and possibly time) from file header. Only the date,
764 * not the time, should be used by the caller.
765 ***************************************************************************
767 void get_file_timestamp_struct(uint64_t flags, struct tm *rectime,
768 struct file_header *file_hdr)
770 time_t t = file_hdr->sa_ust_time;
772 if (PRINT_TRUE_TIME(flags)) {
773 /* Get local time. This is just to fill fields with a default value. */
774 get_time(rectime, 0);
776 rectime->tm_mday = file_hdr->sa_day;
777 rectime->tm_mon = file_hdr->sa_month;
778 rectime->tm_year = file_hdr->sa_year;
780 * Call mktime() to set DST (Daylight Saving Time) flag.
781 * Has anyone a better way to do it?
783 rectime->tm_hour = rectime->tm_min = rectime->tm_sec = 0;
787 localtime_r(&t, rectime);
792 ***************************************************************************
793 * Print report header.
796 * @flags Flags for common options and system state.
797 * @file_hdr System activity file standard header.
800 * @rectime Date and time from file header.
801 ***************************************************************************
803 void print_report_hdr(uint64_t flags, struct tm *rectime,
804 struct file_header *file_hdr)
807 /* Get date of file creation */
808 get_file_timestamp_struct(flags, rectime, file_hdr);
811 * Display the header.
812 * NB: Number of CPU (value in [1, NR_CPUS + 1]).
813 * 1 means that there is only one proc and non SMP kernel.
814 * 2 means one proc and SMP kernel. Etc.
816 print_gal_header(rectime, file_hdr->sa_sysname, file_hdr->sa_release,
817 file_hdr->sa_nodename, file_hdr->sa_machine,
818 file_hdr->sa_cpu_nr > 1 ? file_hdr->sa_cpu_nr - 1 : 1,
823 ***************************************************************************
824 * Network interfaces may now be registered (and unregistered) dynamically.
825 * This is what we try to guess here.
828 * @a Activity structure with statistics.
829 * @curr Index in array for current sample statistics.
830 * @ref Index in array for sample statistics used as reference.
831 * @pos Index on current network interface.
834 * Position of current network interface in array of sample statistics used
836 * -1 if it is a new interface (it was not present in array of stats used
838 * -2 if it is a known interface but which has been unregistered then
839 * registered again on the interval.
840 ***************************************************************************
842 int check_net_dev_reg(struct activity *a, int curr, int ref, int pos)
844 struct stats_net_dev *sndc, *sndp;
849 * No items found in previous iteration:
850 * Current interface is necessarily new.
854 if (j >= a->nr[ref]) {
859 sndc = (struct stats_net_dev *) ((char *) a->buf[curr] + pos * a->msize);
862 sndp = (struct stats_net_dev *) ((char *) a->buf[ref] + j * a->msize);
864 if (!strcmp(sndc->interface, sndp->interface)) {
866 * Network interface found.
867 * If a counter has decreased, then we may assume that the
868 * corresponding interface was unregistered, then registered again.
870 if ((sndc->rx_packets < sndp->rx_packets) ||
871 (sndc->tx_packets < sndp->tx_packets) ||
872 (sndc->rx_bytes < sndp->rx_bytes) ||
873 (sndc->tx_bytes < sndp->tx_bytes) ||
874 (sndc->rx_compressed < sndp->rx_compressed) ||
875 (sndc->tx_compressed < sndp->tx_compressed) ||
876 (sndc->multicast < sndp->multicast)) {
879 * Special processing for rx_bytes (_packets) and
880 * tx_bytes (_packets) counters: If the number of
881 * bytes (packets) has decreased, whereas the number of
882 * packets (bytes) has increased, then assume that the
883 * relevant counter has met an overflow condition, and that
884 * the interface was not unregistered, which is all the
885 * more plausible that the previous value for the counter
886 * was > ULLONG_MAX/2.
887 * NB: the average value displayed will be wrong in this case...
889 * If such an overflow is detected, just set the flag. There is no
890 * need to handle this in a special way: the difference is still
891 * properly calculated if the result is of the same type (i.e.
892 * unsigned long) as the two values.
896 if ((sndc->rx_bytes < sndp->rx_bytes) &&
897 (sndc->rx_packets > sndp->rx_packets) &&
898 (sndp->rx_bytes > (~0ULL >> 1))) {
901 if ((sndc->tx_bytes < sndp->tx_bytes) &&
902 (sndc->tx_packets > sndp->tx_packets) &&
903 (sndp->tx_bytes > (~0ULL >> 1))) {
906 if ((sndc->rx_packets < sndp->rx_packets) &&
907 (sndc->rx_bytes > sndp->rx_bytes) &&
908 (sndp->rx_packets > (~0ULL >> 1))) {
911 if ((sndc->tx_packets < sndp->tx_packets) &&
912 (sndc->tx_bytes > sndp->tx_bytes) &&
913 (sndp->tx_packets > (~0ULL >> 1))) {
919 * OK: Assume here that the device was
920 * actually unregistered.
926 if (++j >= a->nr[ref]) {
932 /* This is a newly registered interface */
937 ***************************************************************************
938 * Network interfaces may now be registered (and unregistered) dynamically.
939 * This is what we try to guess here.
942 * @a Activity structure with statistics.
943 * @curr Index in array for current sample statistics.
944 * @ref Index in array for sample statistics used as reference.
945 * @pos Index on current network interface.
948 * Position of current network interface in array of sample statistics used
950 * -1 if it is a newly registered interface.
951 * -2 if it is a known interface but which has been unregistered then
952 * registered again on the interval.
953 ***************************************************************************
955 int check_net_edev_reg(struct activity *a, int curr, int ref, int pos)
957 struct stats_net_edev *snedc, *snedp;
962 * No items found in previous iteration:
963 * Current interface is necessarily new.
967 if (j >= a->nr[ref]) {
972 snedc = (struct stats_net_edev *) ((char *) a->buf[curr] + pos * a->msize);
975 snedp = (struct stats_net_edev *) ((char *) a->buf[ref] + j * a->msize);
977 if (!strcmp(snedc->interface, snedp->interface)) {
979 * Network interface found.
980 * If a counter has decreased, then we may assume that the
981 * corresponding interface was unregistered, then registered again.
983 if ((snedc->tx_errors < snedp->tx_errors) ||
984 (snedc->collisions < snedp->collisions) ||
985 (snedc->rx_dropped < snedp->rx_dropped) ||
986 (snedc->tx_dropped < snedp->tx_dropped) ||
987 (snedc->tx_carrier_errors < snedp->tx_carrier_errors) ||
988 (snedc->rx_frame_errors < snedp->rx_frame_errors) ||
989 (snedc->rx_fifo_errors < snedp->rx_fifo_errors) ||
990 (snedc->tx_fifo_errors < snedp->tx_fifo_errors))
992 * OK: assume here that the device was
993 * actually unregistered.
999 if (++j >= a->nr[ref]) {
1005 /* This is a newly registered interface */
1010 ***************************************************************************
1011 * Disks may be registered dynamically (true in /proc/diskstats file).
1012 * This is what we try to guess here.
1015 * @a Activity structure with statistics.
1016 * @curr Index in array for current sample statistics.
1017 * @ref Index in array for sample statistics used as reference.
1018 * @pos Index on current disk.
1021 * Position of current disk in array of sample statistics used as reference
1022 * -1 if it is a newly registered device.
1023 * -2 if it is a known device but which has been unregistered then registered
1024 * again on the interval.
1025 ***************************************************************************
1027 int check_disk_reg(struct activity *a, int curr, int ref, int pos)
1029 struct stats_disk *sdc, *sdp;
1034 * No items found in previous iteration:
1035 * Current interface is necessarily new.
1039 if (j >= a->nr[ref]) {
1044 sdc = (struct stats_disk *) ((char *) a->buf[curr] + pos * a->msize);
1047 sdp = (struct stats_disk *) ((char *) a->buf[ref] + j * a->msize);
1049 if ((sdc->major == sdp->major) &&
1050 (sdc->minor == sdp->minor)) {
1053 * If all the counters have decreased then the likelyhood
1054 * is that the disk has been unregistered and a new disk inserted.
1055 * If only one or two have decreased then the likelyhood
1056 * is that the counter has simply wrapped.
1057 * Don't take into account a counter if its previous value was 0
1058 * (this may be a read-only device, or a kernel that doesn't
1059 * support discard stats yet...)
1061 if ((sdc->nr_ios < sdp->nr_ios) &&
1062 (!sdp->rd_sect || (sdc->rd_sect < sdp->rd_sect)) &&
1063 (!sdp->wr_sect || (sdc->wr_sect < sdp->wr_sect)) &&
1064 (!sdp->dc_sect || (sdc->dc_sect < sdp->dc_sect)))
1065 /* Same device registered again */
1070 if (++j >= a->nr[ref]) {
1076 /* This is a newly registered device */
1081 ***************************************************************************
1082 * Allocate bitmaps for activities that have one.
1085 * @act Array of activities.
1086 ***************************************************************************
1088 void allocate_bitmaps(struct activity *act[])
1092 for (i = 0; i < NR_ACT; i++) {
1094 * If current activity has a bitmap which has not already
1095 * been allocated, then allocate it.
1096 * Note that a same bitmap may be used by several activities.
1098 if (act[i]->bitmap && !act[i]->bitmap->b_array) {
1099 SREALLOC(act[i]->bitmap->b_array, unsigned char,
1100 BITMAP_SIZE(act[i]->bitmap->b_size));
1106 ***************************************************************************
1107 * Free bitmaps for activities that have one.
1110 * @act Array of activities.
1111 ***************************************************************************
1113 void free_bitmaps(struct activity *act[])
1117 for (i = 0; i < NR_ACT; i++) {
1118 if (act[i]->bitmap && act[i]->bitmap->b_array) {
1119 free(act[i]->bitmap->b_array);
1120 /* Set pointer to NULL to prevent it from being freed again */
1121 act[i]->bitmap->b_array = NULL;
1127 ***************************************************************************
1128 * Select all activities, even if they have no associated items.
1131 * @act Array of activities.
1134 * @act Array of activities, all of the being selected.
1135 ***************************************************************************
1137 void select_all_activities(struct activity *act[])
1141 for (i = 0; i < NR_ACT; i++) {
1142 act[i]->options |= AO_SELECTED;
1147 ***************************************************************************
1148 * Select CPU activity if no other activities have been explicitly selected.
1149 * Also select CPU "all" if no other CPU has been selected.
1152 * @act Array of activities.
1155 * @act Array of activities with CPU activity selected if needed.
1156 ***************************************************************************
1158 void select_default_activity(struct activity *act[])
1162 p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
1164 /* Default is CPU activity... */
1165 if (!get_activity_nr(act, AO_SELECTED, COUNT_ACTIVITIES)) {
1167 * Yet A_CPU activity may not be available in file
1168 * since the user can choose not to collect it.
1170 act[p]->options |= AO_SELECTED;
1174 * If no CPU's have been selected then select CPU "all".
1175 * cpu_bitmap bitmap may be used by several activities (A_CPU, A_PWR_CPU...)
1177 if (!count_bits(cpu_bitmap.b_array, BITMAP_SIZE(cpu_bitmap.b_size))) {
1178 cpu_bitmap.b_array[0] |= 0x01;
1183 ***************************************************************************
1184 * Swap bytes for every numerical field in structure. Used to convert from
1185 * one endianness type (big-endian or little-endian) to the other.
1188 * @types_nr Number of fields in structure for each following types:
1189 * unsigned long long, unsigned long and int.
1190 * @ps Pointer on structure.
1191 * @is64bit TRUE if data come from a 64-bit machine.
1192 ***************************************************************************
1194 void swap_struct(unsigned int types_nr[], void *ps, int is64bit)
1200 x = (uint64_t *) ps;
1201 /* For each field of type long long (or double) */
1202 for (i = 0; i < types_nr[0]; i++) {
1203 *x = __builtin_bswap64(*x);
1204 x = (uint64_t *) ((char *) x + ULL_ALIGNMENT_WIDTH);
1208 /* For each field of type long */
1209 for (i = 0; i < types_nr[1]; i++) {
1211 *x = __builtin_bswap64(*x);
1212 x = (uint64_t *) ((char *) x + UL_ALIGNMENT_WIDTH);
1215 *y = __builtin_bswap32(*y);
1216 y = (uint32_t *) ((char *) y + UL_ALIGNMENT_WIDTH);
1223 /* For each field of type int */
1224 for (i = 0; i < types_nr[2]; i++) {
1225 *y = __builtin_bswap32(*y);
1226 y = (uint32_t *) ((char *) y + U_ALIGNMENT_WIDTH);
1231 ***************************************************************************
1232 * Map the fields of a structure containing statistics read from a file to
1233 * those of the structure known by current sysstat version.
1234 * Each structure (either read from file or from current sysstat version)
1235 * is described by 3 values: The number of [unsigned] long long integers,
1236 * the number of [unsigned] long integers following in the structure, and
1237 * last the number of [unsigned] integers.
1238 * We assume that those numbers will *never* decrease with newer sysstat
1242 * @gtypes_nr Structure description as expected for current sysstat version.
1243 * @ftypes_nr Structure description as read from file.
1244 * @ps Pointer on structure containing statistics.
1245 * @f_size Size of the structure containing statistics. This is the
1246 * size of the structure *read from file*.
1247 * @g_size Size of the structure expected by current sysstat version.
1248 * @b_size Size of the buffer pointed by @ps.
1251 * -1 if an error has been encountered, or 0 otherwise.
1252 ***************************************************************************
1254 int remap_struct(unsigned int gtypes_nr[], unsigned int ftypes_nr[],
1255 void *ps, unsigned int f_size, unsigned int g_size, size_t b_size)
1261 if (MAP_SIZE(ftypes_nr) > f_size)
1264 /* Remap [unsigned] long fields */
1265 d = gtypes_nr[0] - ftypes_nr[0];
1267 if (ftypes_nr[0] * ULL_ALIGNMENT_WIDTH < ftypes_nr[0])
1271 n = MINIMUM(f_size - ftypes_nr[0] * ULL_ALIGNMENT_WIDTH,
1272 g_size - gtypes_nr[0] * ULL_ALIGNMENT_WIDTH);
1273 if ((ftypes_nr[0] * ULL_ALIGNMENT_WIDTH >= b_size) ||
1274 (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH + n > b_size) ||
1275 (ftypes_nr[0] * ULL_ALIGNMENT_WIDTH + n > b_size))
1278 memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH,
1279 ((char *) ps) + ftypes_nr[0] * ULL_ALIGNMENT_WIDTH, n);
1281 memset(((char *) ps) + ftypes_nr[0] * ULL_ALIGNMENT_WIDTH,
1282 0, d * ULL_ALIGNMENT_WIDTH);
1285 /* Remap [unsigned] int fields */
1286 d = gtypes_nr[1] - ftypes_nr[1];
1288 if (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1289 ftypes_nr[1] * UL_ALIGNMENT_WIDTH < ftypes_nr[1])
1293 n = MINIMUM(f_size - ftypes_nr[0] * ULL_ALIGNMENT_WIDTH
1294 - ftypes_nr[1] * UL_ALIGNMENT_WIDTH,
1295 g_size - gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1296 - gtypes_nr[1] * UL_ALIGNMENT_WIDTH);
1297 if ((gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1298 ftypes_nr[1] * UL_ALIGNMENT_WIDTH >= b_size) ||
1299 (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1300 gtypes_nr[1] * UL_ALIGNMENT_WIDTH + n > b_size) ||
1301 (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1302 ftypes_nr[1] * UL_ALIGNMENT_WIDTH + n > b_size))
1305 memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1306 + gtypes_nr[1] * UL_ALIGNMENT_WIDTH,
1307 ((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1308 + ftypes_nr[1] * UL_ALIGNMENT_WIDTH, n);
1310 memset(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1311 + ftypes_nr[1] * UL_ALIGNMENT_WIDTH,
1312 0, d * UL_ALIGNMENT_WIDTH);
1315 /* Remap possible fields (like strings of chars) following int fields */
1316 d = gtypes_nr[2] - ftypes_nr[2];
1318 if (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1319 gtypes_nr[1] * UL_ALIGNMENT_WIDTH +
1320 ftypes_nr[2] * U_ALIGNMENT_WIDTH < ftypes_nr[2])
1324 n = MINIMUM(f_size - ftypes_nr[0] * ULL_ALIGNMENT_WIDTH
1325 - ftypes_nr[1] * UL_ALIGNMENT_WIDTH
1326 - ftypes_nr[2] * U_ALIGNMENT_WIDTH,
1327 g_size - gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1328 - gtypes_nr[1] * UL_ALIGNMENT_WIDTH
1329 - gtypes_nr[2] * U_ALIGNMENT_WIDTH);
1330 if ((gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1331 gtypes_nr[1] * UL_ALIGNMENT_WIDTH +
1332 ftypes_nr[2] * U_ALIGNMENT_WIDTH >= b_size) ||
1333 (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1334 gtypes_nr[1] * UL_ALIGNMENT_WIDTH +
1335 gtypes_nr[2] * U_ALIGNMENT_WIDTH + n > b_size) ||
1336 (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
1337 gtypes_nr[1] * UL_ALIGNMENT_WIDTH +
1338 ftypes_nr[2] * U_ALIGNMENT_WIDTH + n > b_size))
1341 memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1342 + gtypes_nr[1] * UL_ALIGNMENT_WIDTH
1343 + gtypes_nr[2] * U_ALIGNMENT_WIDTH,
1344 ((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1345 + gtypes_nr[1] * UL_ALIGNMENT_WIDTH
1346 + ftypes_nr[2] * U_ALIGNMENT_WIDTH, n);
1348 memset(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
1349 + gtypes_nr[1] * UL_ALIGNMENT_WIDTH
1350 + ftypes_nr[2] * U_ALIGNMENT_WIDTH,
1351 0, d * U_ALIGNMENT_WIDTH);
1358 ***************************************************************************
1359 * Read data from a system activity data file.
1362 * @ifd Input file descriptor.
1363 * @buffer Buffer where data are read.
1364 * @size Number of bytes to read.
1365 * @mode If set to HARD_SIZE, indicate that an EOF should be considered
1367 * @oneof Set to UEOF_CONT if an unexpected end of file should not make
1368 * sadf stop. Default behavior is to stop on unexpected EOF.
1371 * 1 if EOF has been reached,
1372 * 2 if an unexpected EOF has been reached (and sadf was told to continue),
1374 ***************************************************************************
1376 int sa_fread(int ifd, void *buffer, size_t size, enum size_mode mode, enum on_eof oneof)
1380 if ((n = read(ifd, buffer, size)) < 0) {
1381 fprintf(stderr, _("Error while reading system activity file: %s\n"),
1387 if (!n && (mode == SOFT_SIZE))
1391 fprintf(stderr, _("End of system activity file unexpected\n"));
1392 if (oneof == UEOF_CONT)
1402 ***************************************************************************
1403 * Skip unknown extra structures present in file.
1406 * @ifd System activity data file descriptor.
1408 * TRUE if file's data don't match current machine's endianness.
1409 * @arch_64 TRUE if file's data come from a 64 bit machine.
1412 * -1 on error, 0 otherwise.
1413 ***************************************************************************
1415 int skip_extra_struct(int ifd, int endian_mismatch, int arch_64)
1418 struct extra_desc xtra_d;
1421 /* Read extra structure description */
1422 sa_fread(ifd, &xtra_d, EXTRA_DESC_SIZE, HARD_SIZE, UEOF_STOP);
1425 * We don't need to remap as the extra_desc structure won't change,
1426 * but we may need to normalize endianness anyway.
1428 if (endian_mismatch) {
1429 swap_struct(extra_desc_types_nr, &xtra_d, arch_64);
1432 /* Check values consistency */
1433 if (MAP_SIZE(xtra_d.extra_types_nr) > xtra_d.extra_size) {
1435 fprintf(stderr, "%s: extra_size=%u types=%d,%d,%d\n",
1436 __FUNCTION__, xtra_d.extra_size,
1437 xtra_d.extra_types_nr[0], xtra_d.extra_types_nr[1], xtra_d.extra_types_nr[2]);
1442 if ((xtra_d.extra_nr > MAX_EXTRA_NR) || (xtra_d.extra_size > MAX_EXTRA_SIZE)) {
1444 fprintf(stderr, "%s: extra_size=%u extra_nr=%u\n",
1445 __FUNCTION__, xtra_d.extra_size, xtra_d.extra_size);
1450 /* Ignore current unknown extra structures */
1451 for (i = 0; i < xtra_d.extra_nr; i++) {
1452 if (lseek(ifd, xtra_d.extra_size, SEEK_CUR) < xtra_d.extra_size)
1456 while (xtra_d.extra_next);
1462 ***************************************************************************
1463 * Read the record header of current sample and process it.
1466 * @ifd Input file descriptor.
1467 * @buffer Buffer where data will be read.
1468 * @record_hdr Structure where record header will be saved.
1469 * @file_hdr file_hdr structure containing data read from file standard
1471 * @arch_64 TRUE if file's data come from a 64-bit machine.
1473 * TRUE if data read from file don't match current machine's
1475 * @oneof Set to EOF_CONT if an unexpected end of file should not make
1476 * sadf stop. Default behavior is to stop on unexpected EOF.
1477 * @b_size @buffer size.
1478 * @flags Flags for common options and system state.
1479 * @ofmt Pointer on report output format structure.
1482 * @record_hdr Record header for current sample.
1485 * 1 if EOF has been reached,
1486 * 2 if an error has been encountered (e.g. unexpected EOF),
1488 ***************************************************************************
1490 int read_record_hdr(int ifd, void *buffer, struct record_header *record_hdr,
1491 struct file_header *file_hdr, int arch_64, int endian_mismatch,
1492 int oneof, size_t b_size, uint64_t flags, struct report_format *ofmt)
1497 if ((rc = sa_fread(ifd, buffer, (size_t) file_hdr->rec_size, SOFT_SIZE, oneof)) != 0)
1498 /* End of sa data file */
1501 /* Remap record header structure to that expected by current version */
1502 if (remap_struct(rec_types_nr, file_hdr->rec_types_nr, buffer,
1503 file_hdr->rec_size, RECORD_HEADER_SIZE, b_size) < 0)
1505 memcpy(record_hdr, buffer, RECORD_HEADER_SIZE);
1507 /* Normalize endianness */
1508 if (endian_mismatch) {
1509 swap_struct(rec_types_nr, record_hdr, arch_64);
1512 /* Raw output in debug mode */
1513 if (DISPLAY_DEBUG_MODE(flags) && (ofmt->id == F_RAW_OUTPUT)) {
1516 sprintf(out, "# uptime_cs; %llu; ust_time; %llu; extra_next; %u; record_type; %d; HH:MM:SS; %02d:%02d:%02d\n",
1517 record_hdr->uptime_cs, record_hdr->ust_time,
1518 record_hdr->extra_next, record_hdr->record_type,
1519 record_hdr->hour, record_hdr->minute, record_hdr->second);
1520 cprintf_s(IS_COMMENT, "%s", out);
1524 if ((record_hdr->record_type <= 0) || (record_hdr->record_type > R_EXTRA_MAX) ||
1525 (record_hdr->hour > 23) || (record_hdr->minute > 59) || (record_hdr->second > 60)) {
1527 fprintf(stderr, "%s: record_type=%d HH:MM:SS=%02d:%02d:%02d\n",
1528 __FUNCTION__, record_hdr->record_type,
1529 record_hdr->hour, record_hdr->minute, record_hdr->second);
1535 * Skip unknown extra structures if present.
1536 * This will be done later for R_COMMENT and R_RESTART records, as extra structures
1537 * are saved after the comment or the number of CPU.
1539 if ((record_hdr->record_type != R_COMMENT) && (record_hdr->record_type != R_RESTART) &&
1540 record_hdr->extra_next && (skip_extra_struct(ifd, endian_mismatch, arch_64) < 0))
1543 while ((record_hdr->record_type >= R_EXTRA_MIN) && (record_hdr->record_type <= R_EXTRA_MAX)) ;
1549 ***************************************************************************
1550 * Move structures data.
1553 * @act Array of activities.
1554 * @id_seq Activity sequence in file.
1555 * @record_hdr Current record header.
1556 * @dest Index in array where stats have to be copied to.
1557 * @src Index in array where stats to copy are.
1558 ***************************************************************************
1560 void copy_structures(struct activity *act[], unsigned int id_seq[],
1561 struct record_header record_hdr[], int dest, int src)
1565 memcpy(&record_hdr[dest], &record_hdr[src], RECORD_HEADER_SIZE);
1567 for (i = 0; i < NR_ACT; i++) {
1572 p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND);
1574 memcpy(act[p]->buf[dest], act[p]->buf[src],
1575 (size_t) act[p]->msize * (size_t) act[p]->nr_allocated * (size_t) act[p]->nr2);
1576 act[p]->nr[dest] = act[p]->nr[src];
1581 ***************************************************************************
1582 * Read an __nr_t value from file.
1583 * Such a value can be the new number of CPU saved after a RESTART record,
1584 * or the number of structures to read saved before the structures containing
1585 * statistics for an activity with a varying number of items in file.
1588 * @ifd Input file descriptor.
1589 * @file Name of file being read.
1590 * @file_magic file_magic structure filled with file magic header data.
1592 * TRUE if file's data don't match current machine's endianness.
1593 * @arch_64 TRUE if file's data come from a 64 bit machine.
1594 * @non_zero TRUE if value should not be zero.
1597 * __nr_t value, as read from file.
1598 ***************************************************************************
1600 __nr_t read_nr_value(int ifd, char *file, struct file_magic *file_magic,
1601 int endian_mismatch, int arch_64, int non_zero)
1604 unsigned int nr_types_nr[] = {0, 0, 1};
1606 sa_fread(ifd, &value, sizeof(__nr_t), HARD_SIZE, UEOF_STOP);
1608 /* Normalize endianness for file_activity structures */
1609 if (endian_mismatch) {
1610 swap_struct(nr_types_nr, &value, arch_64);
1613 if ((non_zero && !value) || (value < 0)) {
1615 fprintf(stderr, "%s: Value=%d\n",
1616 __FUNCTION__, value);
1618 /* Value number cannot be zero or negative */
1619 handle_invalid_sa_file(ifd, file_magic, file, 0);
1626 ***************************************************************************
1627 * Read varying part of the statistics from a daily data file.
1630 * @act Array of activities.
1631 * @curr Index in array for current sample statistics.
1632 * @ifd Input file descriptor.
1633 * @act_nr Number of activities in file.
1634 * @file_actlst Activity list in file.
1636 * TRUE if file's data don't match current machine's endianness.
1637 * @arch_64 TRUE if file's data come from a 64 bit machine.
1638 * @dfile Name of system activity data file.
1639 * @file_magic file_magic structure containing data read from file magic
1641 * @oneof Set to UEOF_CONT if an unexpected end of file should not make
1642 * sadf stop. Default behavior is to stop on unexpected EOF.
1645 * 2 if an error has been encountered (e.g. unexpected EOF),
1647 ***************************************************************************
1649 int read_file_stat_bunch(struct activity *act[], int curr, int ifd, int act_nr,
1650 struct file_activity *file_actlst, int endian_mismatch,
1651 int arch_64, char *dfile, struct file_magic *file_magic,
1655 struct file_activity *fal = file_actlst;
1659 for (i = 0; i < act_nr; i++, fal++) {
1661 /* Read __nr_t value preceding statistics structures if it exists */
1663 nr_value = read_nr_value(ifd, dfile, file_magic,
1664 endian_mismatch, arch_64, FALSE);
1670 if (nr_value > NR_MAX) {
1672 fprintf(stderr, "%s: Value=%d Max=%d\n", __FUNCTION__, nr_value, NR_MAX);
1674 handle_invalid_sa_file(ifd, file_magic, dfile, 0);
1677 if (((p = get_activity_position(act, fal->id, RESUME_IF_NOT_FOUND)) < 0) ||
1678 (act[p]->magic != fal->magic)) {
1680 * Ignore current activity in file, which is unknown to
1681 * current sysstat version or has an unknown format.
1684 offset = (off_t) fal->size * (off_t) nr_value * (off_t) fal->nr2;
1685 if (lseek(ifd, offset, SEEK_CUR) < offset) {
1688 if (oneof == UEOF_CONT)
1696 if (nr_value > act[p]->nr_max) {
1698 fprintf(stderr, "%s: %s: Value=%d Max=%d\n",
1699 __FUNCTION__, act[p]->name, nr_value, act[p]->nr_max);
1701 handle_invalid_sa_file(ifd, file_magic, dfile, 0);
1703 act[p]->nr[curr] = nr_value;
1705 /* Reallocate buffers if needed */
1706 if (nr_value > act[p]->nr_allocated) {
1707 reallocate_all_buffers(act[p], nr_value);
1711 * For persistent activities, we must make sure that no statistics
1712 * from a previous iteration remain, especially if the number
1713 * of structures read is smaller than @nr_ini.
1715 if (HAS_PERSISTENT_VALUES(act[p]->options)) {
1716 memset(act[p]->buf[curr], 0,
1717 (size_t) act[p]->msize * (size_t) act[p]->nr_ini * (size_t) act[p]->nr2);
1720 /* OK, this is a known activity: Read the stats structures */
1721 if ((nr_value > 0) &&
1722 ((nr_value > 1) || (act[p]->nr2 > 1)) &&
1723 (act[p]->msize > act[p]->fsize)) {
1725 for (j = 0; j < (nr_value * act[p]->nr2); j++) {
1726 if (sa_fread(ifd, (char *) act[p]->buf[curr] + j * act[p]->msize,
1727 (size_t) act[p]->fsize, HARD_SIZE, oneof) > 0)
1728 /* Unexpected EOF */
1732 else if (nr_value > 0) {
1734 * Note: If msize was smaller than fsize,
1735 * then it has been set to fsize in check_file_actlst().
1737 if (sa_fread(ifd, act[p]->buf[curr],
1738 (size_t) act[p]->fsize * (size_t) nr_value * (size_t) act[p]->nr2,
1739 HARD_SIZE, oneof) > 0)
1740 /* Unexpected EOF */
1744 /* nr_value == 0: Nothing to read */
1748 /* Normalize endianness for current activity's structures */
1749 if (endian_mismatch) {
1750 for (j = 0; j < (nr_value * act[p]->nr2); j++) {
1751 swap_struct(act[p]->ftypes_nr, (char *) act[p]->buf[curr] + j * act[p]->msize,
1756 /* Remap structure's fields to those known by current sysstat version */
1757 for (j = 0; j < (nr_value * act[p]->nr2); j++) {
1758 if (remap_struct(act[p]->gtypes_nr, act[p]->ftypes_nr,
1759 (char *) act[p]->buf[curr] + j * act[p]->msize,
1760 act[p]->fsize, act[p]->msize, act[p]->msize) < 0)
1769 ***************************************************************************
1770 * Open a sysstat activity data file and read its magic structure.
1773 * @dfile Name of system activity data file.
1774 * @ignore Set to 1 if a true sysstat activity file but with a bad
1775 * format should not yield an error message. Useful with
1776 * sadf -H and sadf -c.
1779 * @fd System activity data file descriptor.
1780 * @file_magic file_magic structure containing data read from file magic
1783 * TRUE if file's data don't match current machine's endianness.
1784 * @do_swap TRUE if endianness should be normalized for sysstat_magic
1785 * and format_magic numbers.
1788 * -1 if data file is a sysstat file with an old format (which we cannot
1789 * read), 0 otherwise.
1790 ***************************************************************************
1792 int sa_open_read_magic(int *fd, char *dfile, struct file_magic *file_magic,
1793 int ignore, int *endian_mismatch, int do_swap)
1796 unsigned int fm_types_nr[] = {FILE_MAGIC_ULL_NR, FILE_MAGIC_UL_NR, FILE_MAGIC_U_NR};
1798 /* Open sa data file */
1799 if ((*fd = open(dfile, O_RDONLY)) < 0) {
1800 int saved_errno = errno;
1802 fprintf(stderr, _("Cannot open %s: %s\n"), dfile, strerror(errno));
1804 if ((saved_errno == ENOENT) && default_file_used) {
1805 fprintf(stderr, _("Please check if data collecting is enabled\n"));
1810 /* Read file magic data */
1811 n = read(*fd, file_magic, FILE_MAGIC_SIZE);
1813 if ((n != FILE_MAGIC_SIZE) ||
1814 ((file_magic->sysstat_magic != SYSSTAT_MAGIC) && (file_magic->sysstat_magic != SYSSTAT_MAGIC_SWAPPED)) ||
1815 ((file_magic->format_magic != FORMAT_MAGIC) && (file_magic->format_magic != FORMAT_MAGIC_SWAPPED) && !ignore)) {
1817 fprintf(stderr, "%s: Bytes read=%d sysstat_magic=%x format_magic=%x\n",
1818 __FUNCTION__, n, file_magic->sysstat_magic, file_magic->format_magic);
1820 /* Display error message and exit */
1821 handle_invalid_sa_file(*fd, file_magic, dfile, n);
1824 *endian_mismatch = (file_magic->sysstat_magic != SYSSTAT_MAGIC);
1825 if (*endian_mismatch) {
1827 /* Swap bytes for file_magic fields */
1828 file_magic->sysstat_magic = SYSSTAT_MAGIC;
1829 file_magic->format_magic = __builtin_bswap16(file_magic->format_magic);
1832 * Start swapping at field "header_size" position.
1833 * May not exist for older versions but in this case, it won't be used.
1835 swap_struct(fm_types_nr, &file_magic->header_size, 0);
1838 if ((file_magic->sysstat_version > 10) ||
1839 ((file_magic->sysstat_version == 10) && (file_magic->sysstat_patchlevel >= 3))) {
1840 /* header_size field exists only for sysstat versions 10.3.1 and later */
1841 if ((file_magic->header_size <= MIN_FILE_HEADER_SIZE) ||
1842 (file_magic->header_size > MAX_FILE_HEADER_SIZE)) {
1844 fprintf(stderr, "%s: header_size=%u\n",
1845 __FUNCTION__, file_magic->header_size);
1847 /* Display error message and exit */
1848 handle_invalid_sa_file(*fd, file_magic, dfile, n);
1851 if ((file_magic->sysstat_version > 11) ||
1852 ((file_magic->sysstat_version == 11) && (file_magic->sysstat_patchlevel >= 7))) {
1853 /* hdr_types_nr field exists only for sysstat versions 11.7.1 and later */
1854 if (MAP_SIZE(file_magic->hdr_types_nr) > file_magic->header_size) {
1856 fprintf(stderr, "%s: map_size=%u header_size=%u\n",
1857 __FUNCTION__, MAP_SIZE(file_magic->hdr_types_nr), file_magic->header_size);
1859 handle_invalid_sa_file(*fd, file_magic, dfile, n);
1863 if ((file_magic->format_magic != FORMAT_MAGIC) &&
1864 (file_magic->format_magic != FORMAT_MAGIC_SWAPPED))
1866 * This is an old (or new) sa datafile format to
1867 * be read by sadf (since @ignore was set to TRUE).
1875 ***************************************************************************
1876 * Open a data file, and perform various checks before reading.
1877 * NB: This is called only when reading a datafile (sar and sadf), never
1878 * when writing or appending data to a datafile.
1881 * @dfile Name of system activity data file.
1882 * @act Array of activities.
1883 * @flags Flags for common options and system state.
1886 * @ifd System activity data file descriptor.
1887 * @file_magic file_magic structure containing data read from file magic
1889 * @file_hdr file_hdr structure containing data read from file standard
1891 * @file_actlst Acvtivity list in file.
1892 * @id_seq Activity sequence.
1894 * TRUE if file's data don't match current machine's endianness.
1895 * @arch_64 TRUE if file's data come from a 64 bit machine.
1896 ***************************************************************************
1898 void check_file_actlst(int *ifd, char *dfile, struct activity *act[], uint64_t flags,
1899 struct file_magic *file_magic, struct file_header *file_hdr,
1900 struct file_activity **file_actlst, unsigned int id_seq[],
1901 int *endian_mismatch, int *arch_64)
1903 int i, j, k, p, skip;
1904 struct file_activity *fal;
1905 void *buffer = NULL;
1906 size_t bh_size = FILE_HEADER_SIZE;
1907 size_t ba_size = FILE_ACTIVITY_SIZE;
1909 /* Open sa data file and read its magic structure */
1910 if (sa_open_read_magic(ifd, dfile, file_magic,
1911 DISPLAY_HDR_ONLY(flags), endian_mismatch, TRUE) < 0)
1913 * Not current sysstat's format.
1914 * Return now so that sadf -H can display at least
1915 * file's version and magic number.
1920 * We know now that we have a *compatible* sysstat datafile format
1921 * (correct FORMAT_MAGIC value), and in this case, we should have
1922 * checked header_size value. Anyway, with a corrupted datafile,
1923 * this may not be the case. So check again.
1925 if ((file_magic->header_size <= MIN_FILE_HEADER_SIZE) ||
1926 (file_magic->header_size > MAX_FILE_HEADER_SIZE)) {
1928 fprintf(stderr, "%s: header_size=%u\n",
1929 __FUNCTION__, file_magic->header_size);
1934 /* Allocate buffer for file_header structure */
1935 if (file_magic->header_size > FILE_HEADER_SIZE) {
1936 bh_size = file_magic->header_size;
1938 SREALLOC(buffer, char, bh_size);
1940 /* Read sa data file standard header and allocate activity list */
1941 sa_fread(*ifd, buffer, (size_t) file_magic->header_size, HARD_SIZE, UEOF_STOP);
1943 * Data file header size (file_magic->header_size) may be greater or
1944 * smaller than FILE_HEADER_SIZE. Remap the fields of the file header
1945 * then copy its contents to the expected structure.
1947 if (remap_struct(hdr_types_nr, file_magic->hdr_types_nr, buffer,
1948 file_magic->header_size, FILE_HEADER_SIZE, bh_size) < 0)
1951 memcpy(file_hdr, buffer, FILE_HEADER_SIZE);
1955 /* Tell that data come from a 64 bit machine */
1956 *arch_64 = (file_hdr->sa_sizeof_long == SIZEOF_LONG_64BIT);
1958 /* Normalize endianness for file_hdr structure */
1959 if (*endian_mismatch) {
1960 swap_struct(hdr_types_nr, file_hdr, *arch_64);
1965 * NB: Compare against MAX_NR_ACT and not NR_ACT because
1966 * we are maybe reading a datafile from a future sysstat version
1967 * with more activities than known today.
1969 if ((file_hdr->sa_act_nr > MAX_NR_ACT) ||
1970 (file_hdr->act_size > MAX_FILE_ACTIVITY_SIZE) ||
1971 (file_hdr->rec_size > MAX_RECORD_HEADER_SIZE) ||
1972 (MAP_SIZE(file_hdr->act_types_nr) > file_hdr->act_size) ||
1973 (MAP_SIZE(file_hdr->rec_types_nr) > file_hdr->rec_size)) {
1975 fprintf(stderr, "%s: sa_act_nr=%d act_size=%u rec_size=%u map_size(act)=%u map_size(rec)=%u\n",
1976 __FUNCTION__, file_hdr->sa_act_nr, file_hdr->act_size, file_hdr->rec_size,
1977 MAP_SIZE(file_hdr->act_types_nr), MAP_SIZE(file_hdr->rec_types_nr));
1979 /* Maybe a "false positive" sysstat datafile? */
1983 /* Allocate buffer for file_activity structures */
1984 if (file_hdr->act_size > FILE_ACTIVITY_SIZE) {
1985 ba_size = file_hdr->act_size;
1987 SREALLOC(buffer, char, ba_size);
1988 SREALLOC(*file_actlst, struct file_activity, FILE_ACTIVITY_SIZE * file_hdr->sa_act_nr);
1991 /* Read activity list */
1993 for (i = 0; i < file_hdr->sa_act_nr; i++, fal++) {
1995 /* Read current file_activity structure from file */
1996 sa_fread(*ifd, buffer, (size_t) file_hdr->act_size, HARD_SIZE, UEOF_STOP);
1999 * Data file_activity size (file_hdr->act_size) may be greater or
2000 * smaller than FILE_ACTIVITY_SIZE. Remap the fields of the file's structure
2001 * then copy its contents to the expected structure.
2003 if (remap_struct(act_types_nr, file_hdr->act_types_nr, buffer,
2004 file_hdr->act_size, FILE_ACTIVITY_SIZE, ba_size) < 0)
2006 memcpy(fal, buffer, FILE_ACTIVITY_SIZE);
2008 /* Normalize endianness for file_activity structures */
2009 if (*endian_mismatch) {
2010 swap_struct(act_types_nr, fal, *arch_64);
2014 * Every activity, known or unknown, should have
2015 * at least one item and sub-item, and a size value in
2017 * Also check that the number of items and sub-items
2018 * doesn't exceed a max value. This is necessary
2019 * because we will use @nr and @nr2 to
2020 * allocate memory to read the file contents. So we
2021 * must make sure the file is not corrupted.
2022 * NB: Another check will be made below for known
2023 * activities which have each a specific max value.
2025 if ((fal->nr < 1) || (fal->nr2 < 1) ||
2026 (fal->nr > NR_MAX) || (fal->nr2 > NR2_MAX) ||
2027 (fal->size <= 0) || (fal->size > MAX_ITEM_STRUCT_SIZE)) {
2029 fprintf(stderr, "%s: id=%d nr=%d nr2=%d size=%d\n",
2030 __FUNCTION__, fal->id, fal->nr, fal->nr2, fal->size);
2035 if ((p = get_activity_position(act, fal->id, RESUME_IF_NOT_FOUND)) < 0)
2036 /* Unknown activity */
2039 if ((fal->magic != act[p]->magic) && !DISPLAY_HDR_ONLY(flags)) {
2046 /* Check max value for known activities */
2047 if (fal->nr > act[p]->nr_max) {
2049 fprintf(stderr, "%s: id=%d nr=%d nr_max=%d\n",
2050 __FUNCTION__, fal->id, fal->nr, act[p]->nr_max);
2056 * Number of fields of each type ("long long", or "long"
2057 * or "int") composing the structure with statistics may
2058 * only increase with new sysstat versions, unless we change
2059 * the activity's magic number. Here, we may
2060 * be reading a file created by current sysstat version,
2061 * or by an older or a newer version.
2063 if (!(((fal->types_nr[0] >= act[p]->gtypes_nr[0]) &&
2064 (fal->types_nr[1] >= act[p]->gtypes_nr[1]) &&
2065 (fal->types_nr[2] >= act[p]->gtypes_nr[2]))
2067 ((fal->types_nr[0] <= act[p]->gtypes_nr[0]) &&
2068 (fal->types_nr[1] <= act[p]->gtypes_nr[1]) &&
2069 (fal->types_nr[2] <= act[p]->gtypes_nr[2]))) &&
2070 (fal->magic == act[p]->magic) && !DISPLAY_HDR_ONLY(flags)) {
2072 fprintf(stderr, "%s: id=%d file=%d,%d,%d activity=%d,%d,%d\n",
2073 __FUNCTION__, fal->id, fal->types_nr[0], fal->types_nr[1], fal->types_nr[2],
2074 act[p]->gtypes_nr[0], act[p]->gtypes_nr[1], act[p]->gtypes_nr[2]);
2079 if (MAP_SIZE(fal->types_nr) > fal->size) {
2081 fprintf(stderr, "%s: id=%d size=%u map_size=%u\n",
2082 __FUNCTION__, fal->id, fal->size, MAP_SIZE(fal->types_nr));
2087 for (k = 0; k < 3; k++) {
2088 act[p]->ftypes_nr[k] = fal->types_nr[k];
2091 if (fal->size > act[p]->msize) {
2092 act[p]->msize = fal->size;
2095 act[p]->nr_ini = fal->nr;
2096 act[p]->nr2 = fal->nr2;
2097 act[p]->fsize = fal->size;
2100 * This is a known activity with a known format
2101 * (magical number). Only such activities will be displayed.
2102 * (Well, this may also be an unknown format if we have entered sadf -H.)
2105 id_seq[j++] = fal->id;
2109 while (j < NR_ACT) {
2116 /* Check that at least one activity selected by the user is available in file */
2117 for (i = 0; i < NR_ACT; i++) {
2119 if (!IS_SELECTED(act[i]->options))
2122 /* Here is a selected activity: Does it exist in file? */
2124 for (j = 0; j < file_hdr->sa_act_nr; j++, fal++) {
2125 if (act[i]->id == fal->id)
2128 if (j == file_hdr->sa_act_nr) {
2129 /* No: Unselect it */
2130 act[i]->options &= ~AO_SELECTED;
2135 * None of selected activities exist in file: Abort.
2136 * NB: Error is ignored if we only want to display
2137 * datafile header (sadf -H).
2139 if (!get_activity_nr(act, AO_SELECTED, COUNT_ACTIVITIES) && !DISPLAY_HDR_ONLY(flags)) {
2140 fprintf(stderr, _("Requested activities not available in file %s\n"),
2147 * Check if there are some extra structures.
2148 * We will just skip them as they are unknown for now.
2150 if (file_hdr->extra_next && (skip_extra_struct(*ifd, *endian_mismatch, *arch_64) < 0))
2159 handle_invalid_sa_file(*ifd, file_magic, dfile, 0);
2163 ***************************************************************************
2164 * Look for item in list.
2167 * @list Pointer on the start of the linked list.
2168 * @item_name Item name to look for.
2171 * 1 if item found in list, 0 otherwise.
2172 ***************************************************************************
2174 int search_list_item(struct sa_item *list, char *item_name)
2176 while (list != NULL) {
2177 if (!strcmp(list->item_name, item_name))
2178 return 1; /* Item found in list */
2182 /* Item not found */
2187 ***************************************************************************
2188 * Add item to the list.
2191 * @list Address of pointer on the start of the linked list.
2192 * @item_name Name of the item.
2193 * @max_len Max length of an item.
2196 * 1 if item has been added to the list (since it was not previously there),
2197 * and 0 otherwise (item already in list or item name too long).
2198 ***************************************************************************
2200 int add_list_item(struct sa_item **list, char *item_name, int max_len)
2205 if ((len = strnlen(item_name, max_len)) == max_len)
2209 while (*list != NULL) {
2211 if (!strcmp(e->item_name, item_name))
2212 return 0; /* Item found in list */
2216 /* Item not found: Add it to the list */
2217 SREALLOC(*list, struct sa_item, sizeof(struct sa_item));
2219 if ((e->item_name = (char *) malloc(len + 1)) == NULL) {
2223 strcpy(e->item_name, item_name);
2229 ***************************************************************************
2230 * Parse sar activities options (also used by sadf).
2233 * @argv Arguments list.
2234 * @opt Index in list of arguments.
2235 * @caller Indicate whether it's sar or sadf that called this function.
2238 * @act Array of selected activities.
2239 * @flags Common flags and system state.
2243 ***************************************************************************
2245 int parse_sar_opt(char *argv[], int *opt, struct activity *act[],
2246 uint64_t *flags, int caller)
2250 for (i = 1; *(argv[*opt] + i); i++) {
2252 * Note: argv[*opt] contains something like "-BruW"
2253 * *(argv[*opt] + i) will contain 'B', 'r', etc.
2256 switch (*(argv[*opt] + i)) {
2259 select_all_activities(act);
2260 *flags |= S_F_OPTION_A;
2263 * Force '-r ALL -u ALL -F'.
2264 * Setting -F is compulsory because corresponding activity
2265 * has AO_MULTIPLE_OUTPUTS flag set.
2266 * -P ALL will be set only if corresponding option has
2267 * not been exlicitly entered on the command line.
2269 p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
2270 act[p]->opt_flags |= AO_F_MEMORY + AO_F_SWAP + AO_F_MEM_ALL;
2272 p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
2273 act[p]->opt_flags = AO_F_CPU_ALL;
2275 p = get_activity_position(act, A_FS, EXIT_IF_NOT_FOUND);
2276 act[p]->opt_flags = AO_F_FILESYSTEM;
2280 SELECT_ACTIVITY(A_PAGE);
2284 SELECT_ACTIVITY(A_IO);
2288 *flags |= S_F_COMMENT;
2292 SELECT_ACTIVITY(A_DISK);
2296 p = get_activity_position(act, A_FS, EXIT_IF_NOT_FOUND);
2297 act[p]->options |= AO_SELECTED;
2298 if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_MOUNT)) {
2300 act[p]->opt_flags |= AO_F_MOUNT;
2304 act[p]->opt_flags |= AO_F_FILESYSTEM;
2309 SELECT_ACTIVITY(A_HUGE);
2313 /* Option -h is equivalent to --pretty --human */
2314 *flags |= S_F_PRETTY + S_F_UNIT;
2318 p = get_activity_position(act, A_IRQ, EXIT_IF_NOT_FOUND);
2319 act[p]->options |= AO_SELECTED;
2321 if (!*(argv[*opt] + i + 1) && argv[*opt + 1] &&
2322 (!strcmp(argv[*opt + 1], K_ALL) || !strcmp(argv[*opt + 1], K_SUM))) {
2324 /* Select int "sum". Keyword ALL is ignored */
2325 if (!strcmp(argv[*opt], K_SUM)) {
2326 act[p]->item_list_sz += add_list_item(&(act[p]->item_list), K_LOWERSUM, MAX_SA_IRQ_LEN);
2327 act[p]->options |= AO_LIST_ON_CMDLINE;
2334 if (!argv[*opt + 1]) {
2338 if (!strcmp(argv[*opt], K_SID)) {
2339 *flags |= S_F_DEV_SID + S_F_PRETTY;
2343 if (strnlen(argv[*opt], sizeof(persistent_name_type)) >= sizeof(persistent_name_type) - 1)
2346 strncpy(persistent_name_type, argv[*opt], sizeof(persistent_name_type) - 1);
2347 persistent_name_type[sizeof(persistent_name_type) - 1] = '\0';
2348 strtolower(persistent_name_type);
2349 if (!get_persistent_type_dir(persistent_name_type)) {
2350 fprintf(stderr, _("Invalid type of persistent device name\n"));
2353 /* Pretty print report (option -j implies option -p) */
2354 *flags |= S_F_PERSIST_NAME + S_F_PRETTY;
2359 *flags |= S_F_PRETTY;
2363 /* Option -q grouped with other ones */
2364 SELECT_ACTIVITY(A_QUEUE);
2368 p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
2369 act[p]->options |= AO_SELECTED;
2370 act[p]->opt_flags |= AO_F_MEMORY;
2371 if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_ALL)) {
2373 act[p]->opt_flags |= AO_F_MEM_ALL;
2379 p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
2380 act[p]->options |= AO_SELECTED;
2381 act[p]->opt_flags |= AO_F_SWAP;
2386 * Check sar option -t here (as it can be combined
2387 * with other ones, eg. "sar -rtu ..."
2388 * But sadf option -t is checked in sadf.c as it won't
2389 * be entered as a sar option after "--".
2391 if (caller != C_SAR) {
2394 *flags |= S_F_TRUE_TIME;
2398 p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
2399 act[p]->options |= AO_SELECTED;
2400 if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_ALL)) {
2402 act[p]->opt_flags = AO_F_CPU_ALL;
2406 act[p]->opt_flags = AO_F_CPU_DEF;
2411 SELECT_ACTIVITY(A_KTABLES);
2415 SELECT_ACTIVITY(A_PCSW);
2419 SELECT_ACTIVITY(A_SWAP);
2423 SELECT_ACTIVITY(A_SERIAL);
2427 *flags |= S_F_ZERO_OMIT;
2442 ***************************************************************************
2443 * Parse sar "-m" option.
2446 * @argv Arguments list.
2447 * @opt Index in list of arguments.
2450 * @act Array of selected activities.
2453 * 0 on success, 1 otherwise.
2454 ***************************************************************************
2456 int parse_sar_m_opt(char *argv[], int *opt, struct activity *act[])
2460 for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
2461 if (!strcmp(t, K_CPU)) {
2462 SELECT_ACTIVITY(A_PWR_CPU);
2464 else if (!strcmp(t, K_FAN)) {
2465 SELECT_ACTIVITY(A_PWR_FAN);
2467 else if (!strcmp(t, K_IN)) {
2468 SELECT_ACTIVITY(A_PWR_IN);
2470 else if (!strcmp(t, K_TEMP)) {
2471 SELECT_ACTIVITY(A_PWR_TEMP);
2473 else if (!strcmp(t, K_FREQ)) {
2474 SELECT_ACTIVITY(A_PWR_FREQ);
2476 else if (!strcmp(t, K_USB)) {
2477 SELECT_ACTIVITY(A_PWR_USB);
2479 else if (!strcmp(t, K_ALL)) {
2480 SELECT_ACTIVITY(A_PWR_CPU);
2481 SELECT_ACTIVITY(A_PWR_FAN);
2482 SELECT_ACTIVITY(A_PWR_IN);
2483 SELECT_ACTIVITY(A_PWR_TEMP);
2484 SELECT_ACTIVITY(A_PWR_FREQ);
2485 SELECT_ACTIVITY(A_PWR_USB);
2496 ***************************************************************************
2497 * Parse sar "-n" option.
2500 * @argv Arguments list.
2501 * @opt Index in list of arguments.
2504 * @act Array of selected activities.
2507 * 0 on success, 1 otherwise.
2508 ***************************************************************************
2510 int parse_sar_n_opt(char *argv[], int *opt, struct activity *act[])
2514 for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
2515 if (!strcmp(t, K_DEV)) {
2516 SELECT_ACTIVITY(A_NET_DEV);
2518 else if (!strcmp(t, K_EDEV)) {
2519 SELECT_ACTIVITY(A_NET_EDEV);
2521 else if (!strcmp(t, K_SOCK)) {
2522 SELECT_ACTIVITY(A_NET_SOCK);
2524 else if (!strcmp(t, K_NFS)) {
2525 SELECT_ACTIVITY(A_NET_NFS);
2527 else if (!strcmp(t, K_NFSD)) {
2528 SELECT_ACTIVITY(A_NET_NFSD);
2530 else if (!strcmp(t, K_IP)) {
2531 SELECT_ACTIVITY(A_NET_IP);
2533 else if (!strcmp(t, K_EIP)) {
2534 SELECT_ACTIVITY(A_NET_EIP);
2536 else if (!strcmp(t, K_ICMP)) {
2537 SELECT_ACTIVITY(A_NET_ICMP);
2539 else if (!strcmp(t, K_EICMP)) {
2540 SELECT_ACTIVITY(A_NET_EICMP);
2542 else if (!strcmp(t, K_TCP)) {
2543 SELECT_ACTIVITY(A_NET_TCP);
2545 else if (!strcmp(t, K_ETCP)) {
2546 SELECT_ACTIVITY(A_NET_ETCP);
2548 else if (!strcmp(t, K_UDP)) {
2549 SELECT_ACTIVITY(A_NET_UDP);
2551 else if (!strcmp(t, K_SOCK6)) {
2552 SELECT_ACTIVITY(A_NET_SOCK6);
2554 else if (!strcmp(t, K_IP6)) {
2555 SELECT_ACTIVITY(A_NET_IP6);
2557 else if (!strcmp(t, K_EIP6)) {
2558 SELECT_ACTIVITY(A_NET_EIP6);
2560 else if (!strcmp(t, K_ICMP6)) {
2561 SELECT_ACTIVITY(A_NET_ICMP6);
2563 else if (!strcmp(t, K_EICMP6)) {
2564 SELECT_ACTIVITY(A_NET_EICMP6);
2566 else if (!strcmp(t, K_UDP6)) {
2567 SELECT_ACTIVITY(A_NET_UDP6);
2569 else if (!strcmp(t, K_FC)) {
2570 SELECT_ACTIVITY(A_NET_FC);
2572 else if (!strcmp(t, K_SOFT)) {
2573 SELECT_ACTIVITY(A_NET_SOFT);
2575 else if (!strcmp(t, K_ALL)) {
2576 SELECT_ACTIVITY(A_NET_DEV);
2577 SELECT_ACTIVITY(A_NET_EDEV);
2578 SELECT_ACTIVITY(A_NET_SOCK);
2579 SELECT_ACTIVITY(A_NET_NFS);
2580 SELECT_ACTIVITY(A_NET_NFSD);
2581 SELECT_ACTIVITY(A_NET_IP);
2582 SELECT_ACTIVITY(A_NET_EIP);
2583 SELECT_ACTIVITY(A_NET_ICMP);
2584 SELECT_ACTIVITY(A_NET_EICMP);
2585 SELECT_ACTIVITY(A_NET_TCP);
2586 SELECT_ACTIVITY(A_NET_ETCP);
2587 SELECT_ACTIVITY(A_NET_UDP);
2588 SELECT_ACTIVITY(A_NET_SOCK6);
2589 SELECT_ACTIVITY(A_NET_IP6);
2590 SELECT_ACTIVITY(A_NET_EIP6);
2591 SELECT_ACTIVITY(A_NET_ICMP6);
2592 SELECT_ACTIVITY(A_NET_EICMP6);
2593 SELECT_ACTIVITY(A_NET_UDP6);
2594 SELECT_ACTIVITY(A_NET_FC);
2595 SELECT_ACTIVITY(A_NET_SOFT);
2606 ***************************************************************************
2607 * Parse sar "-q" option.
2610 * @argv Arguments list.
2611 * @opt Index in list of arguments.
2614 * @act Array of selected activities.
2617 * 0 on success, 1 otherwise.
2618 ***************************************************************************
2620 int parse_sar_q_opt(char *argv[], int *opt, struct activity *act[])
2624 for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
2625 if (!strcmp(t, K_LOAD)) {
2626 SELECT_ACTIVITY(A_QUEUE);
2628 else if (!strcmp(t, K_PSI_CPU)) {
2629 SELECT_ACTIVITY(A_PSI_CPU);
2631 else if (!strcmp(t, K_PSI_IO)) {
2632 SELECT_ACTIVITY(A_PSI_IO);
2634 else if (!strcmp(t, K_PSI_MEM)) {
2635 SELECT_ACTIVITY(A_PSI_MEM);
2637 else if (!strcmp(t, K_PSI)) {
2638 SELECT_ACTIVITY(A_PSI_CPU);
2639 SELECT_ACTIVITY(A_PSI_IO);
2640 SELECT_ACTIVITY(A_PSI_MEM);
2642 else if (!strcmp(t, K_ALL)) {
2643 SELECT_ACTIVITY(A_QUEUE);
2644 SELECT_ACTIVITY(A_PSI_CPU);
2645 SELECT_ACTIVITY(A_PSI_IO);
2646 SELECT_ACTIVITY(A_PSI_MEM);
2657 ***************************************************************************
2658 * Parse sar and sadf "-P" option.
2661 * @argv Arguments list.
2662 * @opt Index in list of arguments.
2663 * @act Array of activities.
2666 * @flags Common flags and system state.
2667 * @act Array of activities, with CPUs selected.
2670 * 0 on success, 1 otherwise.
2671 ***************************************************************************
2673 int parse_sa_P_opt(char *argv[], int *opt, uint64_t *flags, struct activity *act[])
2677 p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
2679 if (argv[++(*opt)]) {
2680 if (parse_values(argv[*opt], act[p]->bitmap->b_array,
2681 act[p]->bitmap->b_size, K_LOWERALL))
2684 *flags |= S_F_OPTION_P;
2692 ***************************************************************************
2693 * If option -A has been used, force -P ALL only if corresponding
2694 * option has not been explicitly entered on the command line.
2697 * @flags Common flags and system state.
2700 * @act Array of selected activities.
2701 ***************************************************************************
2703 void set_bitmaps(struct activity *act[], uint64_t *flags)
2707 if (!USE_OPTION_P(*flags)) {
2709 p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
2710 memset(act[p]->bitmap->b_array, ~0,
2711 BITMAP_SIZE(act[p]->bitmap->b_size));
2716 ***************************************************************************
2717 * Parse devices entered on the command line and save them in activity's
2721 * @argv Argument with list of devices.
2722 * @a Activity for which devices are entered on the command line.
2723 * @max_len Max length of a device name.
2724 * @opt Index in list of arguments.
2725 * @pos Position is string where is located the first device.
2726 * @max_val If > 0 then ranges of values are allowed (e.g. 3-5,9-, etc.)
2727 * Values are in range [0..@max_val].
2730 * @opt Index on next argument.
2731 ***************************************************************************
2733 void parse_sa_devices(char *argv, struct activity *a, int max_len, int *opt, int pos,
2736 int i, val_low, val;
2740 for (t = strtok(argv + pos, ","); t; t = strtok(NULL, ",")) {
2742 /* Test ranges of values, if allowed */
2743 if ((max_val > 0) && (strlen(t) <= 16) && (strspn(t, XDIGITS) == strlen(t))) {
2744 if (parse_range_values(t, max_val, &val_low, &val) == 0) {
2745 /* This is a real range of values: Save each if its values */
2746 for (i = val_low; i <= val; i++) {
2747 snprintf(svalue, sizeof(svalue), "%d", i);
2748 svalue[sizeof(svalue) - 1] = '\0';
2749 a->item_list_sz += add_list_item(&(a->item_list), svalue, max_len);
2754 a->item_list_sz += add_list_item(&(a->item_list), t, max_len);
2756 if (a->item_list_sz) {
2757 a->options |= AO_LIST_ON_CMDLINE;
2763 ***************************************************************************
2764 * Compute network interface utilization.
2767 * @st_net_dev Structure with network interface stats.
2768 * @rx Number of bytes received per second.
2769 * @tx Number of bytes transmitted per second.
2772 * NIC utilization (0-100%).
2773 ***************************************************************************
2775 double compute_ifutil(struct stats_net_dev *st_net_dev, double rx, double tx)
2777 unsigned long long speed;
2779 if (st_net_dev->speed) {
2781 speed = (unsigned long long) st_net_dev->speed * 1000000;
2783 if (st_net_dev->duplex == C_DUPLEX_FULL) {
2786 return (rx * 800 / speed);
2789 return (tx * 800 / speed);
2794 return ((rx + tx) * 800 / speed);
2802 ***************************************************************************
2803 * Read and replace unprintable characters in comment with ".".
2806 * @ifd Input file descriptor.
2808 ***************************************************************************
2810 void replace_nonprintable_char(int ifd, char *comment)
2815 sa_fread(ifd, comment, MAX_COMMENT_LEN, HARD_SIZE, UEOF_STOP);
2816 comment[MAX_COMMENT_LEN - 1] = '\0';
2818 /* Replace non printable chars */
2819 for (i = 0; i < strlen(comment); i++) {
2820 if (!isprint(comment[i]))
2826 ***************************************************************************
2827 * Fill the rectime and loctime structures with current record's date and
2828 * time, based on current record's "number of seconds since the epoch" saved
2830 * For loctime (if given): The timestamp is expressed in local time.
2831 * For rectime: The timestamp is expressed in UTC, in local time, or in the
2832 * time of the file's creator depending on options entered by the user on the
2836 * @l_flags Flags indicating the type of time expected by the user.
2837 * S_F_LOCAL_TIME means time should be expressed in local time.
2838 * S_F_TRUE_TIME means time should be expressed in time of
2840 * Default is time expressed in UTC (except for sar, where it
2842 * @record_hdr Record header containing the number of seconds since the
2843 * epoch, and the HH:MM:SS of the file's creator.
2846 * @rectime Structure where timestamp for current record has been saved
2847 * (in local time, in UTC or in time of file's creator
2848 * depending on options used).
2851 * 1 if an error was detected, or 0 otherwise.
2852 ***************************************************************************
2854 int sa_get_record_timestamp_struct(uint64_t l_flags, struct record_header *record_hdr,
2858 time_t t = record_hdr->ust_time;
2862 * Fill generic rectime structure in local time.
2863 * Done so that we have some default values.
2865 ltm = localtime_r(&t, rectime);
2867 if (!PRINT_LOCAL_TIME(l_flags) && !PRINT_TRUE_TIME(l_flags)) {
2870 * (the user doesn't want local time nor time of file's creator).
2872 ltm = gmtime_r(&t, rectime);
2879 if (PRINT_TRUE_TIME(l_flags)) {
2880 /* Time of file's creator */
2881 rectime->tm_hour = record_hdr->hour;
2882 rectime->tm_min = record_hdr->minute;
2883 rectime->tm_sec = record_hdr->second;
2890 ***************************************************************************
2891 * Set current record's timestamp strings (date and time) using the time
2892 * data saved in @rectime structure. The string may be the number of seconds
2893 * since the epoch if flag S_F_SEC_EPOCH has been set.
2896 * @l_flags Flags indicating the type of time expected by the user.
2897 * S_F_SEC_EPOCH means the time should be expressed in seconds
2898 * since the epoch (01/01/1970).
2899 * @record_hdr Record header containing the number of seconds since the
2901 * @cur_date String where timestamp's date will be saved. May be NULL.
2902 * @cur_time String where timestamp's time will be saved.
2903 * @len Maximum length of timestamp strings.
2904 * @rectime Structure with current timestamp (expressed in local time or
2905 * in UTC depending on whether options -T or -t have been used
2906 * or not) that should be broken down in date and time strings.
2909 * @cur_date Timestamp's date string (if expected).
2910 * @cur_time Timestamp's time string. May contain the number of seconds
2911 * since the epoch (01-01-1970) if corresponding option has
2913 ***************************************************************************
2915 void set_record_timestamp_string(uint64_t l_flags, struct record_header *record_hdr,
2916 char *cur_date, char *cur_time, int len, struct tm *rectime)
2918 /* Set cur_time date value */
2919 if (PRINT_SEC_EPOCH(l_flags) && cur_date) {
2920 sprintf(cur_time, "%llu", record_hdr->ust_time);
2921 strcpy(cur_date, "");
2925 * If options -T or -t have been used then cur_time is
2926 * expressed in local time. Else it is expressed in UTC.
2929 strftime(cur_date, len, "%Y-%m-%d", rectime);
2931 if (USE_PREFD_TIME_OUTPUT(l_flags)) {
2932 strftime(cur_time, len, "%X", rectime);
2935 strftime(cur_time, len, "%H:%M:%S", rectime);
2941 ***************************************************************************
2942 * Print contents of a special (RESTART or COMMENT) record.
2943 * Note: This function is called only when reading a file.
2946 * @record_hdr Current record header.
2947 * @l_flags Flags for common options.
2948 * @tm_start Structure filled when option -s has been used.
2949 * @tm_end Structure filled when option -e has been used.
2950 * @rtype Record type (R_RESTART or R_COMMENT).
2951 * @ifd Input file descriptor.
2952 * @rectime Structure where timestamp (expressed in local time or in UTC
2953 * depending on whether options -T/-t have been used or not) can
2954 * be saved for current record.
2955 * @file Name of file being read.
2956 * @tab Number of tabulations to print.
2957 * @my_tz Current timezone.
2958 * @file_magic file_magic structure filled with file magic header data.
2959 * @file_hdr System activity file standard header.
2960 * @act Array of activities.
2961 * @ofmt Pointer on report output format structure.
2963 * TRUE if file's data don't match current machine's endianness.
2964 * @arch_64 TRUE if file's data come from a 64 bit machine.
2967 * @rectime Structure where timestamp (expressed in local time or in UTC)
2971 * 1 if the record has been successfully displayed, and 0 otherwise.
2972 ***************************************************************************
2974 int print_special_record(struct record_header *record_hdr, uint64_t l_flags,
2975 struct tstamp *tm_start, struct tstamp *tm_end, int rtype, int ifd,
2976 struct tm *rectime, char *file, int tab, char *my_tz,
2977 struct file_magic *file_magic, struct file_header *file_hdr,
2978 struct activity *act[], struct report_format *ofmt,
2979 int endian_mismatch, int arch_64)
2981 char cur_date[TIMESTAMP_LEN], cur_time[TIMESTAMP_LEN];
2985 /* Fill timestamp structure (rectime) for current record */
2986 if (sa_get_record_timestamp_struct(l_flags, record_hdr, rectime))
2989 /* The record must be in the interval specified by -s/-e options */
2990 if ((tm_start->use && (datecmp(rectime, tm_start, FALSE) < 0)) ||
2991 (tm_end->use && (datecmp(rectime, tm_end, FALSE) > 0))) {
2992 /* Will not display the special record */
2996 /* Set date and time strings to be displayed for current record */
2997 set_record_timestamp_string(l_flags, record_hdr,
2998 cur_date, cur_time, TIMESTAMP_LEN, rectime);
3001 if (rtype == R_RESTART) {
3002 /* Read new cpu number following RESTART record */
3003 file_hdr->sa_cpu_nr = read_nr_value(ifd, file, file_magic,
3004 endian_mismatch, arch_64, TRUE);
3007 * We don't know if CPU related activities will be displayed or not.
3008 * But if it is the case, @nr_ini will be used in the loop
3009 * to process all CPUs. So update their value here and
3010 * reallocate buffers if needed.
3011 * NB: We may have nr_allocated=0 here if the activity has
3012 * not been collected in file (or if it has an unknown format).
3014 for (p = 0; p < NR_ACT; p++) {
3015 if (HAS_PERSISTENT_VALUES(act[p]->options) && (act[p]->nr_ini > 0)) {
3016 act[p]->nr_ini = file_hdr->sa_cpu_nr;
3017 if (act[p]->nr_ini > act[p]->nr_allocated) {
3018 reallocate_all_buffers(act[p], act[p]->nr_ini);
3023 /* Ignore unknown extra structures if present */
3024 if (record_hdr->extra_next && (skip_extra_struct(ifd, endian_mismatch, arch_64) < 0))
3030 if (*ofmt->f_restart) {
3031 (*ofmt->f_restart)(&tab, F_MAIN, cur_date, cur_time, my_tz, file_hdr, record_hdr);
3034 else if (rtype == R_COMMENT) {
3035 char file_comment[MAX_COMMENT_LEN];
3037 /* Read and replace non printable chars in comment */
3038 replace_nonprintable_char(ifd, file_comment);
3040 /* Ignore unknown extra structures if present */
3041 if (record_hdr->extra_next && (skip_extra_struct(ifd, endian_mismatch, arch_64) < 0))
3044 if (!dp || !DISPLAY_COMMENT(l_flags))
3047 if (*ofmt->f_comment) {
3048 (*ofmt->f_comment)(&tab, F_MAIN, cur_date, cur_time, my_tz,
3049 file_comment, file_hdr, record_hdr);
3057 ***************************************************************************
3058 * Compute global CPU statistics as the sum of individual CPU ones, and
3059 * calculate interval for global CPU.
3060 * Also identify offline CPU.
3063 * @a Activity structure with statistics.
3064 * @prev Index in array where stats used as reference are.
3065 * @curr Index in array for current sample statistics.
3066 * @flags Flags for common options and system state.
3067 * @offline_cpu_bitmap
3068 * CPU bitmap for offline CPU.
3071 * @a Activity structure with updated statistics (those for global
3072 * CPU, and also those for offline CPU).
3073 * @offline_cpu_bitmap
3074 * CPU bitmap with offline CPU.
3077 * Interval for global CPU.
3078 ***************************************************************************
3080 unsigned long long get_global_cpu_statistics(struct activity *a, int prev, int curr,
3081 uint64_t flags, unsigned char offline_cpu_bitmap[])
3084 unsigned long long tot_jiffies_c, tot_jiffies_p;
3085 unsigned long long deltot_jiffies = 0;
3086 struct stats_cpu *scc, *scp;
3087 struct stats_cpu *scc_all = (struct stats_cpu *) ((char *) a->buf[curr]);
3088 struct stats_cpu *scp_all = (struct stats_cpu *) ((char *) a->buf[prev]);
3091 * Initial processing.
3092 * Compute CPU "all" as sum of all individual CPU. Done only on SMP machines (a->nr_ini > 1).
3093 * For UP machines we keep the values read from global CPU line in /proc/stat.
3094 * Also look for offline CPU: They won't be displayed, and some of their values may
3095 * have to be modified.
3097 if (a->nr_ini > 1) {
3098 memset(scc_all, 0, sizeof(struct stats_cpu));
3099 memset(scp_all, 0, sizeof(struct stats_cpu));
3102 for (i = 1; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {
3105 * The size of a->buf[...] CPU structure may be different from the default
3106 * sizeof(struct stats_cpu) value if data have been read from a file!
3107 * That's why we don't use a syntax like:
3108 * scc = (struct stats_cpu *) a->buf[...] + i;
3110 scc = (struct stats_cpu *) ((char *) a->buf[curr] + i * a->msize);
3111 scp = (struct stats_cpu *) ((char *) a->buf[prev] + i * a->msize);
3114 * Compute the total number of jiffies spent by current processor.
3115 * NB: Don't add cpu_guest/cpu_guest_nice because cpu_user/cpu_nice
3116 * already include them.
3118 tot_jiffies_c = scc->cpu_user + scc->cpu_nice +
3119 scc->cpu_sys + scc->cpu_idle +
3120 scc->cpu_iowait + scc->cpu_hardirq +
3121 scc->cpu_steal + scc->cpu_softirq;
3122 tot_jiffies_p = scp->cpu_user + scp->cpu_nice +
3123 scp->cpu_sys + scp->cpu_idle +
3124 scp->cpu_iowait + scp->cpu_hardirq +
3125 scp->cpu_steal + scp->cpu_softirq;
3128 * If the CPU is offline then it is omited from /proc/stat:
3129 * All the fields couldn't have been read and the sum of them is zero.
3131 if (tot_jiffies_c == 0) {
3133 * CPU is currently offline.
3134 * Set current struct fields (which have been set to zero)
3135 * to values from previous iteration. Hence their values won't
3136 * jump from zero when the CPU comes back online.
3137 * Note that this workaround no longer fully applies with recent kernels,
3138 * as I have noticed that when a CPU comes back online, some fields
3139 * restart from their previous value (e.g. user, nice, system)
3140 * whereas others restart from zero (idle, iowait)! To deal with this,
3141 * the get_per_cpu_interval() function will set these previous values
3142 * to zero if necessary.
3147 * Mark CPU as offline to not display it
3148 * (and thus it will not be confused with a tickless CPU).
3150 offline_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3153 if ((tot_jiffies_p == 0) && !WANT_SINCE_BOOT(flags)) {
3155 * CPU has just come back online.
3156 * Unfortunately, no reference values are available
3157 * from a previous iteration, probably because it was
3158 * already offline when the first sample has been taken.
3159 * So don't display that CPU to prevent "jump-from-zero"
3160 * output syndrome, and don't take it into account for CPU "all".
3162 offline_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3167 * Get interval for current CPU and add it to global CPU.
3168 * Note: Previous idle and iowait values (saved in scp) may be modified here.
3170 deltot_jiffies += get_per_cpu_interval(scc, scp);
3172 scc_all->cpu_user += scc->cpu_user;
3173 scp_all->cpu_user += scp->cpu_user;
3175 scc_all->cpu_nice += scc->cpu_nice;
3176 scp_all->cpu_nice += scp->cpu_nice;
3178 scc_all->cpu_sys += scc->cpu_sys;
3179 scp_all->cpu_sys += scp->cpu_sys;
3181 scc_all->cpu_idle += scc->cpu_idle;
3182 scp_all->cpu_idle += scp->cpu_idle;
3184 scc_all->cpu_iowait += scc->cpu_iowait;
3185 scp_all->cpu_iowait += scp->cpu_iowait;
3187 scc_all->cpu_hardirq += scc->cpu_hardirq;
3188 scp_all->cpu_hardirq += scp->cpu_hardirq;
3190 scc_all->cpu_steal += scc->cpu_steal;
3191 scp_all->cpu_steal += scp->cpu_steal;
3193 scc_all->cpu_softirq += scc->cpu_softirq;
3194 scp_all->cpu_softirq += scp->cpu_softirq;
3196 scc_all->cpu_guest += scc->cpu_guest;
3197 scp_all->cpu_guest += scp->cpu_guest;
3199 scc_all->cpu_guest_nice += scc->cpu_guest_nice;
3200 scp_all->cpu_guest_nice += scp->cpu_guest_nice;
3203 return deltot_jiffies;
3207 ***************************************************************************
3208 * Compute softnet statistics for CPU "all" as the sum of individual CPU
3210 * Also identify offline CPU.
3213 * @a Activity structure with statistics.
3214 * @prev Index in array where stats used as reference are.
3215 * @curr Index in array for current sample statistics.
3216 * @flags Flags for common options and system state.
3217 * @offline_cpu_bitmap
3218 * CPU bitmap for offline CPU.
3221 * @a Activity structure with updated statistics (those for global
3222 * CPU, and also those for offline CPU).
3223 * @offline_cpu_bitmap
3224 * CPU bitmap with offline CPU.
3225 ***************************************************************************
3227 void get_global_soft_statistics(struct activity *a, int prev, int curr,
3228 uint64_t flags, unsigned char offline_cpu_bitmap[])
3231 struct stats_softnet *ssnc, *ssnp;
3232 struct stats_softnet *ssnc_all = (struct stats_softnet *) ((char *) a->buf[curr]);
3233 struct stats_softnet *ssnp_all = (struct stats_softnet *) ((char *) a->buf[prev]);
3236 * Init structures that will contain values for CPU "all".
3237 * CPU "all" doesn't exist in /proc/net/softnet_stat file, so
3238 * we compute its values as the sum of the values of each CPU.
3240 memset(ssnc_all, 0, sizeof(struct stats_softnet));
3241 memset(ssnp_all, 0, sizeof(struct stats_softnet));
3243 for (i = 1; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {
3246 * The size of a->buf[...] CPU structure may be different from the default
3247 * sizeof(struct stats_softnet) value if data have been read from a file!
3248 * That's why we don't use a syntax like:
3249 * ssnc = (struct stats_softnet *) a->buf[...] + i;
3251 ssnc = (struct stats_softnet *) ((char *) a->buf[curr] + i * a->msize);
3252 ssnp = (struct stats_softnet *) ((char *) a->buf[prev] + i * a->msize);
3254 if ((ssnp->processed + ssnp->dropped + ssnp->time_squeeze +
3255 ssnp->received_rps + ssnp->flow_limit + ssnp->backlog_len == 0) &&
3256 !WANT_SINCE_BOOT(flags)) {
3258 * No previous sample for current CPU: Don't display it unless
3259 * we want stats since last boot time.
3260 * (CPU may be online but we don't display it because all
3261 * its counters would appear to jump from zero...)
3263 offline_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3267 if (ssnc->processed + ssnc->dropped + ssnc->time_squeeze +
3268 ssnc->received_rps + ssnc->flow_limit + ssnc->backlog_len == 0) {
3269 /* Assume current CPU is offline */
3271 offline_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3274 ssnc_all->processed += ssnc->processed;
3275 ssnc_all->dropped += ssnc->dropped;
3276 ssnc_all->time_squeeze += ssnc->time_squeeze;
3277 ssnc_all->received_rps += ssnc->received_rps;
3278 ssnc_all->flow_limit += ssnc->flow_limit;
3279 ssnc_all->backlog_len += ssnc->backlog_len;
3281 ssnp_all->processed += ssnp->processed;
3282 ssnp_all->dropped += ssnp->dropped;
3283 ssnp_all->time_squeeze += ssnp->time_squeeze;
3284 ssnp_all->received_rps += ssnp->received_rps;
3285 ssnp_all->flow_limit += ssnp->flow_limit;
3286 ssnp_all->backlog_len += ssnp->backlog_len;
3291 ***************************************************************************
3292 * Identify offline CPU (those for which all interrupts are 0) and keep
3293 * interrupts statistics (their values are persistent). Include also CPU
3294 * which have not been selected (this is necessary so that the header of the
3295 * interrupts statistics report can be displayed).
3298 * @a Activity structure with statistics.
3299 * @prev Index in array where stats used as reference are.
3300 * @curr Index in array for current sample statistics.
3301 * @flags Flags for common options and system state.
3302 * @masked_cpu_bitmap
3303 * CPU bitmap for offline and unselected CPU.
3306 * @a Activity structure with updated statistics (those for global
3307 * CPU, and also those for offline CPU).
3308 * @masked_cpu_bitmap
3309 * CPU bitmap with offline and unselected CPU.
3310 ***************************************************************************
3312 void get_global_int_statistics(struct activity *a, int prev, int curr,
3313 uint64_t flags, unsigned char masked_cpu_bitmap[])
3316 struct stats_irq *stc_cpu_sum, *stp_cpu_sum;
3318 for (i = 0; (i < a->nr_ini) && (i < a->bitmap->b_size + 1); i++) {
3321 * The size of a->buf[...] CPU structure may be different from the default
3322 * sizeof(struct stats_irq) value if data have been read from a file!
3323 * That's why we don't use a syntax like:
3324 * stc_cpu_sum = (struct stats_irq *) a->buf[...] + i;
3326 stc_cpu_sum = (struct stats_irq *) ((char *) a->buf[curr] + i * a->msize * a->nr2);
3327 stp_cpu_sum = (struct stats_irq *) ((char *) a->buf[prev] + i * a->msize * a->nr2);
3330 * Check if current CPU is back online but with no previous sample for it,
3331 * or if it has not been selected.
3333 if (((stp_cpu_sum->irq_nr == 0) && !WANT_SINCE_BOOT(flags)) ||
3334 (!(a->bitmap->b_array[i >> 3] & (1 << (i & 0x07))))) {
3335 /* CPU should not be displayed */
3336 masked_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3340 if (stc_cpu_sum->irq_nr == 0) {
3341 /* Assume current CPU is offline */
3342 masked_cpu_bitmap[i >> 3] |= 1 << (i & 0x07);
3343 memcpy(stc_cpu_sum, stp_cpu_sum, (size_t) a->msize * a->nr2);
3350 ***************************************************************************
3351 * Get filesystem name to display. This may be either the persistent name
3352 * if requested by the user, the standard filesystem name (e.g. /dev/sda1,
3353 * /dev/sdb3, etc.) or the mount point. This is used when displaying
3354 * filesystem statistics: sar -F or sadf -- -F).
3357 * @a Activity structure.
3358 * @flags Flags for common options and system state.
3359 * @st_fs Statistics for current filesystem.
3362 * Filesystem name to display.
3363 ***************************************************************************
3365 char *get_fs_name_to_display(struct activity *a, uint64_t flags, struct stats_filesystem *st_fs)
3367 char *pname = NULL, *persist_dev_name;
3368 char fname[MAX_FS_LEN];
3370 if (DISPLAY_PERSIST_NAME_S(flags) && !DISPLAY_MOUNT(a->opt_flags)) {
3371 strncpy(fname, st_fs->fs_name, sizeof(fname));
3372 fname[sizeof(fname) - 1] = '\0';
3373 if ((persist_dev_name = get_persistent_name_from_pretty(basename(fname))) != NULL) {
3374 pname = persist_dev_name;
3378 pname = DISPLAY_MOUNT(a->opt_flags) ? st_fs->mountp : st_fs->fs_name;
3382 #endif /* SOURCE_SADC undefined */