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



NAME
       dispqlen.d - dispatcher queue length by CPU. Uses DTrace.

SYNOPSIS
       dispqlen.d

DESCRIPTION
       The  dispatcher queue length is an indication of CPU saturation.  It is not an indicatior of utilisa-tion utilisation
       tion - the CPUs may or may not be utilised when the dispatcher queue reports a length of zero.

       This script measures this activity by sampling at 1000 Hertz per CPU.

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

EXAMPLES
       Print dispatcher queue length by CPU.
              # dispqlen.d


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

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       uptime(1), dtrace(1M)




version 0.80                                    Jun 27, 2005                                  dispqlen.d(1m)