1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * j_events.d - count Java events using DTrace.
1N/A * Written for the Java hotspot DTrace provider.
1N/A *
1N/A * $Id: j_events.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). Some events such as method calls are only
1N/A * visible when using the flag "+ExtendedDTraceProbes". eg,
1N/A * java -XX:+ExtendedDTraceProbes classfile
1N/A *
1N/A * USAGE: j_events.d # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * PID Process ID
1N/A * EVENT Event name (DTrace probe name)
1N/A * COUNT Number of calls during sample
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/A/* this matches both hotspot and hotspot_jni providers */
1N/Ahotspot*:::
1N/A{
1N/A @calls[pid, probename] = count();
1N/A}
1N/A
1N/Adtrace:::END
1N/A{
1N/A printf(" %6s %-36s %8s\n", "PID", "EVENT", "COUNT");
1N/A printa(" %6d %-36s %@8d\n", @calls);
1N/A}