65 lines
1.6 KiB
D
Executable File
65 lines
1.6 KiB
D
Executable File
#!/usr/sbin/dtrace -Zs
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/*
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* j_thread.d - snoop Java thread execution using DTrace.
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Written for the Java hotspot DTrace provider.
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*
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* $Id: j_thread.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $
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*
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* This traces activity from all Java processes on the system with hotspot
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* provider support (1.6.0).
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*
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* USAGE: j_thread.d # hit Ctrl-C to end
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*
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* FIELDS:
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* TIME Time string
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* PID Process ID
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* TID Thread ID
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* THREAD Thread name
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*
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* LEGEND:
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* => thread start
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* <= thread end
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*
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* COPYRIGHT: Copyright (c) 2007 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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* 09-Sep-2007 Brendan Gregg Created this.
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*/
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#pragma D option quiet
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#pragma D option switchrate=10
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dtrace:::BEGIN
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{
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printf("%-20s %6s/%-5s -- %s\n", "TIME", "PID", "TID", "THREAD");
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}
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hotspot*:::thread-start
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{
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this->thread = (char *)copyin(arg0, arg1 + 1);
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this->thread[arg1] = '\0';
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printf("%-20Y %6d/%-5d => %s\n", walltimestamp, pid, tid,
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stringof(this->thread));
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}
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hotspot*:::thread-stop
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{
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this->thread = (char *)copyin(arg0, arg1 + 1);
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this->thread[arg1] = '\0';
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printf("%-20Y %6d/%-5d <= %s\n", walltimestamp, pid, tid,
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stringof(this->thread));
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}
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