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



NAME
       syscallbysysc.d - syscalls by syscall. Uses DTrace.

SYNOPSIS
       syscallbysysc.d

DESCRIPTION
       syscallbysysc.d is a DTrace OneLiner to a report of the number of each type of system call made.

       This is useful to identify which system call is the most common.

       Docs/oneliners.txt  and  Docs/Examples/oneliners_examples.txt  in the DTraceToolkit contain this as a
       oneliner that can be cut-n-paste to run.

       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.
              # syscallbysysc.d


FIELDS
       first field
              This is the system call type. Most have man pages in section 2.

       second field
              This is the count, the number of occurrances for this system call.


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

AUTHOR
       Brendan Gregg [Sydney, Australia]

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




version 1.00                                    May 15, 2005                             syscallbysysc.d(1m)