This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.

For more information about the manual page format, see the manual page for manpages(5).

cpuwalk.d(1m)                                   USER COMMANDS                                  cpuwalk.d(1m)



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 the root user or users with the dtrace_kernel  privilege  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 directory. The DTraceToolkit docs may
       include full worked examples with verbose 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(1m)