dispqlen.d - dispatcher queue length by CPU. Uses DTrace. dispqlen.d The dispatcher queue length is an indication of CPU saturation. It is not an indicatior of utilisation - 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. Solaris unstable - walks private kernel structs.

Print dispatcher queue length by CPU. # dispqlen.d

See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with verbose descriptions explaining the output. dispqlen.d will sample until Ctrl-C is hit. Brendan Gregg [Sydney, Australia] uptime(1), dtrace(1M)