1*e137d3e0Schristos #!/usr/sbin/dtrace -Zs 2*e137d3e0Schristos /* 3*e137d3e0Schristos * j_thread.d - snoop Java thread execution using DTrace. 4*e137d3e0Schristos Written for the Java hotspot DTrace provider. 5*e137d3e0Schristos * 6*e137d3e0Schristos * $Id: j_thread.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7*e137d3e0Schristos * 8*e137d3e0Schristos * This traces activity from all Java processes on the system with hotspot 9*e137d3e0Schristos * provider support (1.6.0). 10*e137d3e0Schristos * 11*e137d3e0Schristos * USAGE: j_thread.d # hit Ctrl-C to end 12*e137d3e0Schristos * 13*e137d3e0Schristos * FIELDS: 14*e137d3e0Schristos * TIME Time string 15*e137d3e0Schristos * PID Process ID 16*e137d3e0Schristos * TID Thread ID 17*e137d3e0Schristos * THREAD Thread name 18*e137d3e0Schristos * 19*e137d3e0Schristos * LEGEND: 20*e137d3e0Schristos * => thread start 21*e137d3e0Schristos * <= thread end 22*e137d3e0Schristos * 23*e137d3e0Schristos * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 24*e137d3e0Schristos * 25*e137d3e0Schristos * CDDL HEADER START 26*e137d3e0Schristos * 27*e137d3e0Schristos * The contents of this file are subject to the terms of the 28*e137d3e0Schristos * Common Development and Distribution License, Version 1.0 only 29*e137d3e0Schristos * (the "License"). You may not use this file except in compliance 30*e137d3e0Schristos * with the License. 31*e137d3e0Schristos * 32*e137d3e0Schristos * You can obtain a copy of the license at Docs/cddl1.txt 33*e137d3e0Schristos * or http://www.opensolaris.org/os/licensing. 34*e137d3e0Schristos * See the License for the specific language governing permissions 35*e137d3e0Schristos * and limitations under the License. 36*e137d3e0Schristos * 37*e137d3e0Schristos * CDDL HEADER END 38*e137d3e0Schristos * 39*e137d3e0Schristos * 09-Sep-2007 Brendan Gregg Created this. 40*e137d3e0Schristos */ 41*e137d3e0Schristos 42*e137d3e0Schristos #pragma D option quiet 43*e137d3e0Schristos #pragma D option switchrate=10 44*e137d3e0Schristos 45*e137d3e0Schristos dtrace:::BEGIN 46*e137d3e0Schristos { 47*e137d3e0Schristos printf("%-20s %6s/%-5s -- %s\n", "TIME", "PID", "TID", "THREAD"); 48*e137d3e0Schristos } 49*e137d3e0Schristos 50*e137d3e0Schristos hotspot*:::thread-start 51*e137d3e0Schristos { 52*e137d3e0Schristos this->thread = (char *)copyin(arg0, arg1 + 1); 53*e137d3e0Schristos this->thread[arg1] = '\0'; 54*e137d3e0Schristos printf("%-20Y %6d/%-5d => %s\n", walltimestamp, pid, tid, 55*e137d3e0Schristos stringof(this->thread)); 56*e137d3e0Schristos } 57*e137d3e0Schristos 58*e137d3e0Schristos hotspot*:::thread-stop 59*e137d3e0Schristos { 60*e137d3e0Schristos this->thread = (char *)copyin(arg0, arg1 + 1); 61*e137d3e0Schristos this->thread[arg1] = '\0'; 62*e137d3e0Schristos printf("%-20Y %6d/%-5d <= %s\n", walltimestamp, pid, tid, 63*e137d3e0Schristos stringof(this->thread)); 64*e137d3e0Schristos } 65