cpuwalk.d(1) USER COMMANDS cpuwalk.d(1)
NAME
cpuwalk.d - Measure which CPUs a process runs on. Uses DTrace.
SYNOPSIS
cpuwalk.d [duration]
DESCRIPTION
This program is for multi-CPU servers, and can help identify if a
process is running on multiple CPUs concurrently or not.
A duration may be specified in seconds.
Since this uses DTrace, only users with root privileges can run this
command.
EXAMPLES
this runs until Ctrl-C is hit,
# cpuwalk.d
run for 5 seconds,
# cpuwalk.d 5
FIELDS
PID process ID
CMD process name
value CPU id
count number of samples (sample at 100 hz)
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs direc-
tory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
cpuwalk.d will run until Ctrl-C is hit, or the duration specified is
reached.
SEE ALSO
threaded.d(1M), dtrace(1M)
version 0.90 Sep 22, 2005 cpuwalk.d(1)
Mac OS X 10.6 - Generated Thu Sep 17 20:07:23 CDT 2009