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57 lines
1.5 KiB
D
Executable File
57 lines
1.5 KiB
D
Executable File
#!/usr/sbin/dtrace -s
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/*
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* runocc.d - run queue occupancy by CPU.
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* Written using DTrace (Solaris 10 3/05).
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*
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* This prints the dispatcher run queue occupancy by CPU each second.
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* A consistant run queue occupancy is a sign of CPU saturation.
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*
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* The value is similar to that seen in "sar -q", however this is
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* calculated in a more accurate manner - sampling at 1000 Hertz.
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*
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* $Id: runocc.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $
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*
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* USAGE: runocc.d
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*
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* FIELDS:
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* CPU cpu ID
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* %runocc % run queue occupancy, sampled at 1000 Hertz
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*
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* SEE ALSO: Solaris Internals 2nd Ed, vol 2, CPU chapter.
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*
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* COPYRIGHT: Copyright (c) 2006 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 02-Mar-2006 Brendan Gregg Created this.
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* 24-Apr-2006 " " Last update.
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*/
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#pragma D option quiet
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profile-1000hz
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/curthread->t_cpu->cpu_disp->disp_nrunnable/
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{
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@qocc[cpu] = count();
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}
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profile:::tick-1sec
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{
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normalize(@qocc, 10);
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printf("\n%8s %8s\n", "CPU", "%runocc");
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printa("%8d %@8d\n", @qocc);
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clear(@qocc);
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}
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