1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * j_thread.d - snoop Java thread execution using DTrace.
1N/A Written for the Java hotspot DTrace provider.
1N/A *
1N/A * $Id: j_thread.d 19 2007-09-12 07:47:59Z brendan $
1N/A *
1N/A * This traces activity from all Java processes on the system with hotspot
1N/A * provider support (1.6.0).
1N/A *
1N/A * USAGE: j_thread.d # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * TIME Time string
1N/A * PID Process ID
1N/A * TID Thread ID
1N/A * THREAD Thread name
1N/A *
1N/A * LEGEND:
1N/A * => thread start
1N/A * <= thread end
1N/A *
1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 09-Sep-2007 Brendan Gregg Created this.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A#pragma D option switchrate=10
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("%-20s %6s/%-5s -- %s\n", "TIME", "PID", "TID", "THREAD");
1N/A}
1N/A
1N/Ahotspot*:::thread-start
1N/A{
1N/A this->thread = (char *)copyin(arg0, arg1 + 1);
1N/A this->thread[arg1] = '\0';
1N/A printf("%-20Y %6d/%-5d => %s\n", walltimestamp, pid, tid,
1N/A stringof(this->thread));
1N/A}
1N/A
1N/Ahotspot*:::thread-stop
1N/A{
1N/A this->thread = (char *)copyin(arg0, arg1 + 1);
1N/A this->thread[arg1] = '\0';
1N/A printf("%-20Y %6d/%-5d <= %s\n", walltimestamp, pid, tid,
1N/A stringof(this->thread));
1N/A}