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src/share/vm/runtime/memprofiler.cpp@5ccbab1c69f3 (annotated)

src/share/vm/runtime/memprofiler.cpp

Tue, 22 Oct 2013 09:51:47 +0200

author

roland

date

Tue, 22 Oct 2013 09:51:47 +0200

changeset 5987

5ccbab1c69f3

parent 4299

f34d701e952e

child 6876

710a3c8b516e

child 9351

bae7d3cdf6af

permissions

-rw-r--r--

8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by: kvn, twisti

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "classfile/systemDictionary.hpp"
stefank@2314	27	#include "code/codeCache.hpp"
stefank@2314	28	#include "gc_interface/collectedHeap.inline.hpp"
stefank@2314	29	#include "interpreter/oopMapCache.hpp"
stefank@2314	30	#include "memory/generation.hpp"
stefank@2314	31	#include "memory/resourceArea.hpp"
stefank@2314	32	#include "runtime/handles.inline.hpp"
stefank@2314	33	#include "runtime/jniHandles.hpp"
stefank@2314	34	#include "runtime/memprofiler.hpp"
stefank@2314	35	#include "runtime/mutexLocker.hpp"
stefank@2314	36	#include "runtime/os.hpp"
stefank@2314	37	#include "runtime/task.hpp"
stefank@4299	38	#include "runtime/thread.inline.hpp"
stefank@2314	39	#include "runtime/vmThread.hpp"
duke@435	40
duke@435	41	#ifndef PRODUCT
duke@435	42
duke@435	43	// --------------------------------------------------------
duke@435	44	// MemProfilerTask
duke@435	45
duke@435	46	class MemProfilerTask : public PeriodicTask {
duke@435	47	public:
duke@435	48	MemProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
duke@435	49	void task();
duke@435	50	};
duke@435	51
duke@435	52
duke@435	53	void MemProfilerTask::task() {
duke@435	54	// Get thread lock to provide mutual exclusion, and so we can iterate safely over the thread list.
duke@435	55	MutexLocker mu(Threads_lock);
duke@435	56	MemProfiler::do_trace();
duke@435	57	}
duke@435	58
duke@435	59
duke@435	60	//----------------------------------------------------------
duke@435	61	// Implementation of MemProfiler
duke@435	62
duke@435	63	MemProfilerTask* MemProfiler::_task = NULL;
duke@435	64	FILE* MemProfiler::_log_fp = NULL;
duke@435	65
duke@435	66
duke@435	67	bool MemProfiler::is_active() {
duke@435	68	return _task != NULL;
duke@435	69	}
duke@435	70
duke@435	71
duke@435	72	void MemProfiler::engage() {
duke@435	73	const char *log_name = "mprofile.log";
duke@435	74	if (!is_active()) {
duke@435	75	// Create log file
duke@435	76	_log_fp = fopen(log_name , "w+");
duke@435	77	if (_log_fp == NULL) {
jcoomes@1845	78	fatal(err_msg("MemProfiler: Cannot create log file: %s", log_name));
duke@435	79	}
duke@435	80	fprintf(_log_fp, "MemProfiler: sizes are in Kb, time is in seconds since startup\n\n");
duke@435	81	fprintf(_log_fp, " time, #thr, #cls, heap, heap, perm, perm, code, hndls, rescs, oopmp\n");
duke@435	82	fprintf(_log_fp, " used, total, used, total, total, total, total, total\n");
duke@435	83	fprintf(_log_fp, "--------------------------------------------------------------------------\n");
duke@435	84
duke@435	85	_task = new MemProfilerTask(MemProfilingInterval);
duke@435	86	_task->enroll();
duke@435	87	}
duke@435	88	}
duke@435	89
duke@435	90
duke@435	91	void MemProfiler::disengage() {
duke@435	92	if (!is_active()) return;
duke@435	93	// Do one last trace at disengage time
duke@435	94	do_trace();
duke@435	95
duke@435	96	// Close logfile
duke@435	97	fprintf(_log_fp, "MemProfiler detached\n");
duke@435	98	fclose(_log_fp);
duke@435	99
duke@435	100	// remove MemProfilerTask
duke@435	101	assert(_task != NULL, "sanity check");
duke@435	102	_task->disenroll();
duke@435	103	delete _task;
duke@435	104	_task = NULL;
duke@435	105	}
duke@435	106
duke@435	107
duke@435	108	void MemProfiler::do_trace() {
duke@435	109	// Calculate thread local sizes
duke@435	110	size_t handles_memory_usage = VMThread::vm_thread()->handle_area()->size_in_bytes();
duke@435	111	size_t resource_memory_usage = VMThread::vm_thread()->resource_area()->size_in_bytes();
duke@435	112	JavaThread *cur = Threads::first();
duke@435	113	while (cur != NULL) {
duke@435	114	handles_memory_usage += cur->handle_area()->size_in_bytes();
duke@435	115	resource_memory_usage += cur->resource_area()->size_in_bytes();
duke@435	116	cur = cur->next();
duke@435	117	}
duke@435	118
duke@435	119	// Print trace line in log
coleenp@4037	120	fprintf(_log_fp, "%6.1f,%5d,%5d," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",",
xlu@948	121	os::elapsedTime(),
xlu@948	122	Threads::number_of_threads(),
xlu@948	123	SystemDictionary::number_of_classes(),
xlu@948	124	Universe::heap()->used() / K,
coleenp@4037	125	Universe::heap()->capacity() / K);
duke@435	126
xlu@948	127	fprintf(_log_fp, UINTX_FORMAT_W(6) ",", CodeCache::capacity() / K);
duke@435	128
xlu@948	129	fprintf(_log_fp, UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",%6ld\n",
xlu@948	130	handles_memory_usage / K,
xlu@948	131	resource_memory_usage / K,
xlu@948	132	OopMapCache::memory_usage() / K);
duke@435	133	fflush(_log_fp);
duke@435	134	}
duke@435	135
duke@435	136	#endif