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37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
.TH dispqlen.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
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.SH NAME
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dispqlen.d \- dispatcher queue length by CPU. Uses DTrace.
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.SH SYNOPSIS
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.B dispqlen.d
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.SH DESCRIPTION
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The dispatcher queue length is an indication of CPU saturation.
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It is not an indicatior of utilisation - the CPUs may or may not be
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utilised when the dispatcher queue reports a length of zero.
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This script measures this activity by sampling at 1000 Hertz per CPU.
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Since this uses DTrace, only the root user or users with the
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dtrace_kernel privilege can run this command.
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.SH OS
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Solaris
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.SH STABILITY
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unstable - walks private kernel structs.
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.SH EXAMPLES
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.TP
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Print dispatcher queue length by CPU.
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#
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.B dispqlen.d
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.PP
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.SH DOCUMENTATION
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See the DTraceToolkit for further documentation under the
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Docs directory. The DTraceToolkit docs may include full worked
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examples with verbose descriptions explaining the output.
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.SH EXIT
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dispqlen.d will sample until Ctrl-C is hit.
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.SH AUTHOR
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Brendan Gregg
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[Sydney, Australia]
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.SH SEE ALSO
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uptime(1), dtrace(1M)
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