PCPUSTAT(1) BSD General Commands Manual PCPUSTAT(1)NAMEpcpustat — per-CPU usage statistics
SYNOPSISpcpustat [-ahinqstux] [-c count] [-d delimiter] [-p cpu] [-w wait]
DESCRIPTION
The pcpustat utility provides per-CPU usage statistics. This information
is computed using the same algorithm as in top(1) with the -P option, but
the output format is more similar to that of iostat(8) so that it can be
piped and reformatted.
OPTIONS-a, -all
Include all usage statistics (same as -instu). This is the
default if no specific statistics are selected.
-c, -count count
Sample statistics the specified number of times. If not speci‐
fied, it defaults to 1 if -w is not specified, otherwise forever.
-d, -delim delimiter
Delimit columns with delimiter instead of justifying them with
spaces.
-h, -help
Print the list of options and exit.
-i, -idle
Include idle time in the statistics.
-n, -nice
Include nice time in the statistics.
-p, -cpu cpu
Select processor cpu [0-n]. You may repeat the switch to select
more than one CPU. The default is to include all CPUs.
-q, -quiet
Print no header, only the data.
-s, -system
Include system time in the statistics.
-t, -interrupt
Include interrupt time in the statistics.
-u, -user
Include user time in the statistics.
-w, -wait wait
Pause the specified number of seconds between updates. The
default is 1.
-x, -not
Report the percentage of time not in each state. If specified,
each percentage is subtracted from 100. The header (unless the
-q option is selected) displays a "!" before each heading.
OUTPUT FORMAT
If the [-q] option is not specified, the first two lines of output will
contain a header.
The first line lists the CPUs, by number. If the options specify only
one column of information per CPU, then this line will only contain the
CPU numbers (starting with 0), otherwise it will contain the string "cpu
" followed by the number. This heading will be right-justified over the
columns that apply to that CPU, unless the [-d] option is specified (in
which case the headers are also delimited).
The second header line labels the columns within the output for each CPU.
These labels can be any of the following:
us % of cpu time in user mode
ni % of cpu time in user mode running niced processes
sy % of cpu time in system mode
in % of cpu time in interrupt mode
id % of cpu time in idle mode
If the [-x] option was specified, then each of the above is prefixed by
'!'.
The remaining lines of output will be the percentage of time each CPU
spent in each of the designated states since the previous line (or since
pcpustat started, in the case of the first line).
If the [-d] option is specified, then the string specified as its argu‐
ment will occur between each column. Otherwise, enough spaces will be
used to right-align each column under its heading.
SEE ALSOtop(1), iostat(8), sysctl(3), sysctl(8)AUTHOR
Sterling (Chip) Camden <sterling@camdensoftware.com>
SITE
http://chipstips.com/?tag=c_pcpustat
BUGS
The pcpustat utility can only report on CPUs 0-n, where n is one less
than the number of bits in a long.
BSD September 26, 2010 BSD
