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



NAME
       rwbypid.d - read/write calls by PID. Uses DTrace.

SYNOPSIS
       rwbypid.d

DESCRIPTION
       This  script  tracks  the  number of reads and writes at the syscall level by processes, printing the
       totals in a report. This matches reads and writes whether they succeed or not.

       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.
              # rwbypid.d


FIELDS
       PID    process ID

       CMD    process name

       DIR    direction, Read or Write

       COUNT  total calls


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

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       rwbbypid.d(1M), dtrace(1M)




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