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src/share/vm/runtime/memprofiler.cpp@fd44df5e3bc3 (annotated)

src/share/vm/runtime/memprofiler.cpp

Wed, 14 Oct 2020 17:44:48 +0800

author

aoqi

date

Wed, 14 Oct 2020 17:44:48 +0800

changeset 9931

fd44df5e3bc3

parent 9448

73d689add964

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
kevinw@9351	2	* Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "classfile/systemDictionary.hpp"
aoqi@0	27	#include "code/codeCache.hpp"
aoqi@0	28	#include "gc_interface/collectedHeap.inline.hpp"
aoqi@0	29	#include "interpreter/oopMapCache.hpp"
aoqi@0	30	#include "memory/generation.hpp"
aoqi@0	31	#include "memory/resourceArea.hpp"
aoqi@0	32	#include "runtime/handles.inline.hpp"
aoqi@0	33	#include "runtime/jniHandles.hpp"
aoqi@0	34	#include "runtime/memprofiler.hpp"
aoqi@0	35	#include "runtime/mutexLocker.hpp"
aoqi@0	36	#include "runtime/os.hpp"
aoqi@0	37	#include "runtime/task.hpp"
aoqi@0	38	#include "runtime/thread.inline.hpp"
aoqi@0	39	#include "runtime/vmThread.hpp"
aoqi@0	40
aoqi@0	41	#ifndef PRODUCT
aoqi@0	42
aoqi@0	43	// --------------------------------------------------------
aoqi@0	44	// MemProfilerTask
aoqi@0	45
aoqi@0	46	class MemProfilerTask : public PeriodicTask {
aoqi@0	47	public:
aoqi@0	48	MemProfilerTask(int interval_time) : PeriodicTask(interval_time) {}
aoqi@0	49	void task();
aoqi@0	50	};
aoqi@0	51
aoqi@0	52
aoqi@0	53	void MemProfilerTask::task() {
aoqi@0	54	// Get thread lock to provide mutual exclusion, and so we can iterate safely over the thread list.
aoqi@0	55	MutexLocker mu(Threads_lock);
aoqi@0	56	MemProfiler::do_trace();
aoqi@0	57	}
aoqi@0	58
aoqi@0	59
aoqi@0	60	//----------------------------------------------------------
aoqi@0	61	// Implementation of MemProfiler
aoqi@0	62
aoqi@0	63	MemProfilerTask* MemProfiler::_task = NULL;
aoqi@0	64	FILE* MemProfiler::_log_fp = NULL;
aoqi@0	65
aoqi@0	66
aoqi@0	67	bool MemProfiler::is_active() {
aoqi@0	68	return _task != NULL;
aoqi@0	69	}
aoqi@0	70
aoqi@0	71
aoqi@0	72	void MemProfiler::engage() {
aoqi@0	73	const char *log_name = "mprofile.log";
aoqi@0	74	if (!is_active()) {
aoqi@0	75	// Create log file
aoqi@0	76	_log_fp = fopen(log_name , "w+");
aoqi@0	77	if (_log_fp == NULL) {
aoqi@0	78	fatal(err_msg("MemProfiler: Cannot create log file: %s", log_name));
aoqi@0	79	}
aoqi@0	80	fprintf(_log_fp, "MemProfiler: sizes are in Kb, time is in seconds since startup\n\n");
aoqi@0	81	fprintf(_log_fp, " time, #thr, #cls, heap, heap, perm, perm, code, hndls, rescs, oopmp\n");
aoqi@0	82	fprintf(_log_fp, " used, total, used, total, total, total, total, total\n");
aoqi@0	83	fprintf(_log_fp, "--------------------------------------------------------------------------\n");
aoqi@0	84
aoqi@0	85	_task = new MemProfilerTask(MemProfilingInterval);
aoqi@0	86	_task->enroll();
aoqi@0	87	}
aoqi@0	88	}
aoqi@0	89
aoqi@0	90
aoqi@0	91	void MemProfiler::disengage() {
aoqi@0	92	if (!is_active()) return;
aoqi@0	93	// Do one last trace at disengage time
aoqi@0	94	do_trace();
aoqi@0	95
aoqi@0	96	// Close logfile
aoqi@0	97	fprintf(_log_fp, "MemProfiler detached\n");
aoqi@0	98	fclose(_log_fp);
aoqi@0	99
aoqi@0	100	// remove MemProfilerTask
aoqi@0	101	assert(_task != NULL, "sanity check");
aoqi@0	102	_task->disenroll();
aoqi@0	103	delete _task;
aoqi@0	104	_task = NULL;
aoqi@0	105	}
aoqi@0	106
aoqi@0	107
aoqi@0	108	void MemProfiler::do_trace() {
aoqi@0	109	// Calculate thread local sizes
aoqi@0	110	size_t handles_memory_usage = VMThread::vm_thread()->handle_area()->size_in_bytes();
aoqi@0	111	size_t resource_memory_usage = VMThread::vm_thread()->resource_area()->size_in_bytes();
aoqi@0	112	JavaThread *cur = Threads::first();
aoqi@0	113	while (cur != NULL) {
aoqi@0	114	handles_memory_usage += cur->handle_area()->size_in_bytes();
aoqi@0	115	resource_memory_usage += cur->resource_area()->size_in_bytes();
aoqi@0	116	cur = cur->next();
aoqi@0	117	}
aoqi@0	118
aoqi@0	119	// Print trace line in log
aoqi@0	120	fprintf(_log_fp, "%6.1f,%5d,%5d," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) ",",
aoqi@0	121	os::elapsedTime(),
aoqi@0	122	Threads::number_of_threads(),
aoqi@0	123	SystemDictionary::number_of_classes(),
aoqi@0	124	Universe::heap()->used() / K,
aoqi@0	125	Universe::heap()->capacity() / K);
aoqi@0	126
aoqi@0	127	fprintf(_log_fp, UINTX_FORMAT_W(6) ",", CodeCache::capacity() / K);
aoqi@0	128
kevinw@9351	129	fprintf(_log_fp, UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) "," UINTX_FORMAT_W(6) "\n",
aoqi@0	130	handles_memory_usage / K,
aoqi@0	131	resource_memory_usage / K,
aoqi@0	132	OopMapCache::memory_usage() / K);
aoqi@0	133	fflush(_log_fp);
aoqi@0	134	}
aoqi@0	135
aoqi@0	136	#endif