1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * j_who.d - trace Java calls by process using DTrace.
1N/A * Written for the Java hotspot DTrace provider.
1N/A *
1N/A * $Id: j_who.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_who.d # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * PID Process ID of Java
1N/A * UID User ID of the owner
1N/A * CALLS Number of calls made (a measure of activity)
1N/A * ARGS Process name and arguments
1N/A *
1N/A * The argument list is truncated at 55 characters (up to 80 is easily
1N/A * available). To easily read the full argument list, use other system tools;
1N/A * on Solaris use "pargs PID".
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
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("Tracing... Hit Ctrl-C to end.\n");
1N/A}
1N/A
1N/Ahotspot*:::Call*-entry
1N/A{
1N/A @calls[pid, uid, curpsinfo->pr_psargs] = count();
1N/A}
1N/A
1N/Adtrace:::END
1N/A{
1N/A printf(" %6s %6s %6s %-55s\n", "PID", "UID", "CALLS", "ARGS");
1N/A printa(" %6d %6d %@6d %-55.55s\n", @calls);
1N/A}