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#!/usr/sbin/dtrace -Zs
/*
* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*/
/*
* Usage:
* 1. hotspot_calls_tree.d -c "java ..."
* 2. hotspot_calls_tree.d -p JAVA_PID
*
* This script prints calls tree of fired 'hotspot' probes.
*
* Notes:
* The script uses 'monitors' probes which are disabled by default since
* it incurs performance overhead to the application. To enable them, you
* need to turn on the ExtendedDTraceProbes VM option. You can either
* start the application with -XX:+ExtendedDTraceProbes option or use the
* jinfo command to enable it at runtime as follows:
*
* jinfo -flag +ExtendedDTraceProbes <java_pid>
*
*/
#pragma D option quiet
#pragma D option destructive
#pragma D option defaultargs
#pragma D option aggrate=100ms
self int indent;
string PAUSE_AT_STARTUP_FILE;
:::BEGIN
{
SAMPLE_NAME = "hotspot probes tracing";
printf("BEGIN %s\n\n", SAMPLE_NAME);
self->indent = 10;
}
hotspot$target:::class-loaded,
hotspot$target:::class-unloaded,
hotspot$target:::compiled-method-load,
hotspot$target:::compiled-method-unload,
hotspot$target:::monitor-notify,
hotspot$target:::monitor-notifyAll
{
printf("%d %*s <-> %s\n", curcpu->cpu_id, self->indent, "", probename);
}
hotspot$target:::vm-init-begin,
hotspot$target:::gc-begin,
hotspot$target:::mem-pool-gc-begin,
hotspot$target:::thread-start,
hotspot$target:::method-compile-begin,
hotspot$target:::monitor-contended-enter,
hotspot$target:::monitor-wait
{
self->indent ++;
printf("%d %*s -> %s\n", curcpu->cpu_id, self->indent, "", probename);
}
hotspot$target:::vm-init-end,
hotspot$target:::vm-shutdown,
hotspot$target:::gc-end,
hotspot$target:::mem-pool-gc-end,
hotspot$target:::thread-stop,
hotspot$target:::method-compile-end,
hotspot$target:::monitor-contended-entered,
hotspot$target:::monitor-contended-exit,
hotspot$target:::monitor-waited
{
printf("%d %*s <- %s\n", curcpu->cpu_id, self->indent, "", probename);
self->indent --;
}
:::END
{
printf("\nEND of %s\n", SAMPLE_NAME);
}
syscall::rexit:entry,
syscall::exit:entry
/pid == $target/
{
exit(0);
}
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