#!/usr/sbin/dtrace -s /* * threaded.d - sample multi-threaded CPU usage. * Written using DTrace (Solaris 10 3/05). * * This measures thread IDs as a process runs across multiple CPUs. * It is a simple script that can help determine if a multi-threaded * application is effectively using it's threads, or if the threads have * serialised. See the example file in Docs/Examples/threaded_example.txt * for a demonstration. * * $Id: threaded.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ * * USAGE: threaded.d * * FIELDS: * PID process ID * CMD process name * value thread ID * count number of samples * * SEE ALSO: prstat -L * * COPYRIGHT: Copyright (c) 2005 Brendan Gregg. * * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at Docs/cddl1.txt * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * CDDL HEADER END * * Author: Brendan Gregg [Sydney, Australia] * * 25-Jul-2005 Brendan Gregg Created this. * 25-Jul-2005 " " Last update. */ #pragma D option quiet /* * Sample at 100 Hertz */ profile:::profile-100 /pid != 0/ { @sample[pid, execname] = lquantize(tid, 0, 128, 1); } /* * Print output every 1 second */ profile:::tick-1sec { printf("%Y,\n", walltimestamp); printa("\n PID: %-8d CMD: %s\n%@d", @sample); printf("\n"); trunc(@sample); }