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67 lines
1.6 KiB
D
Executable File
67 lines
1.6 KiB
D
Executable File
#!/usr/sbin/dtrace -s
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/*
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* threaded.d - sample multi-threaded CPU usage.
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* Written using DTrace (Solaris 10 3/05).
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*
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* This measures thread IDs as a process runs across multiple CPUs.
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* It is a simple script that can help determine if a multi-threaded
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* application is effectively using it's threads, or if the threads have
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* serialised. See the example file in Docs/Examples/threaded_example.txt
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* for a demonstration.
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*
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* $Id: threaded.d 3 2007-08-01 10:50:08Z brendan $
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*
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* USAGE: threaded.d
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*
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* FIELDS:
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* PID process ID
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* CMD process name
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* value thread ID
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* count number of samples
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*
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* SEE ALSO: prstat -L
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*
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* COPYRIGHT: Copyright (c) 2005 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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* Author: Brendan Gregg [Sydney, Australia]
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*
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* 25-Jul-2005 Brendan Gregg Created this.
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* 25-Jul-2005 " " Last update.
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*/
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#pragma D option quiet
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/*
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* Sample at 100 Hertz
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*/
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profile:::profile-100
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/pid != 0/
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{
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@sample[pid, execname] = lquantize(tid, 0, 128, 1);
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}
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/*
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* Print output every 1 second
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*/
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profile:::tick-1sec
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{
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printf("%Y,\n", walltimestamp);
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printa("\n PID: %-8d CMD: %s\n%@d", @sample);
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printf("\n");
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trunc(@sample);
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}
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