ADC Home > Reference Library > Reference > Mac OS X > Mac OS X Man Pages

 

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).



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



NAME
       syscallbypid.d - syscalls by process ID. Uses DTrace.

SYNOPSIS
       syscallbypid.d

DESCRIPTION
       This  reports  the  number of each type of system call made by PID.  This is useful to identify which
       process is causing the most system calls.

       This is based on a script from DExplorer.

       Since this uses DTrace, only the root user or users with the dtrace_kernel  privilege  can  run  this
       command.

EXAMPLES
       This samples until Ctrl-C is hit.
              # syscallbypid.d


FIELDS
       PID    process ID

       CMD    process name

       SYSCALL
              system call name

       COUNT  number of system calls made in this sample


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
       syscallbypid.d will sample until Ctrl-C is hit.

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       procsystime(1M), dtrace(1M), truss(1)




version 1.00                                    Jun 28, 2005                              syscallbypid.d(1m)

Did this document help you?
Yes: Tell us what works for you.
It’s good, but: Report typos, inaccuracies, and so forth.
It wasn’t helpful: Tell us what would have helped.