-.TH SAR 1 "JANUARY 2018" Linux "Linux User's Manual" -*- nroff -*-
+.TH SAR 1 "FEBRUARY 2018" Linux "Linux User's Manual" -*- nroff -*-
.SH NAME
sar \- Collect, report, or save system activity information.
.SH SYNOPSIS
is given, the
.B sar
command reports statistics for each individual processor and global
-statistics among all processors.
+statistics among all processors. Offline processors are not displayed.
You can select information about specific system activities using
flags. Not specifying any flags selects only CPU activity.
Specifying the
.B ALL
keyword reports statistics for each individual processor, and globally for
-all processors.
+all processors. Offline processors are not displayed.
.IP -p
Pretty-print device names. Use this option in conjunction with option -d.
By default names are printed as
Percentage of time that the CPU or CPUs were idle and the system
did not have an outstanding disk I/O request.
.RE
-
-Note: On SMP machines a processor that does not have any activity at all
-(0.00 for every field) is a disabled (offline) processor.
.RE
.IP -V
Print version number then exit.