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src/share/vm/gc_implementation/g1/g1StringDedupStat.hpp@595c0f60d50d (annotated)

src/share/vm/gc_implementation/g1/g1StringDedupStat.hpp

Tue, 18 Mar 2014 19:07:22 +0100

author

pliden

date

Tue, 18 Mar 2014 19:07:22 +0100

changeset 6413

595c0f60d50d

parent 0

f90c822e73f8

permissions

-rw-r--r--

8029075: String deduplication in G1
Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2014, 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	#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP
aoqi@0	26	#define SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP
aoqi@0	27
aoqi@0	28	#include "memory/allocation.hpp"
aoqi@0	29	#include "runtime/os.hpp"
aoqi@0	30
aoqi@0	31	// Macros for GC log output formating
aoqi@0	32	#define G1_STRDEDUP_OBJECTS_FORMAT UINTX_FORMAT_W(12)
aoqi@0	33	#define G1_STRDEDUP_TIME_FORMAT "%1.7lf secs"
aoqi@0	34	#define G1_STRDEDUP_PERCENT_FORMAT "%5.1lf%%"
aoqi@0	35	#define G1_STRDEDUP_PERCENT_FORMAT_NS "%.1lf%%"
aoqi@0	36	#define G1_STRDEDUP_BYTES_FORMAT "%8.1lf%s"
aoqi@0	37	#define G1_STRDEDUP_BYTES_FORMAT_NS "%.1lf%s"
aoqi@0	38	#define G1_STRDEDUP_BYTES_PARAM(bytes) byte_size_in_proper_unit((double)(bytes)), proper_unit_for_byte_size((bytes))
aoqi@0	39
aoqi@0	40	//
aoqi@0	41	// Statistics gathered by the deduplication thread.
aoqi@0	42	//
aoqi@0	43	class G1StringDedupStat : public StackObj {
aoqi@0	44	private:
aoqi@0	45	// Counters
aoqi@0	46	uintx _inspected;
aoqi@0	47	uintx _skipped;
aoqi@0	48	uintx _hashed;
aoqi@0	49	uintx _known;
aoqi@0	50	uintx _new;
aoqi@0	51	uintx _new_bytes;
aoqi@0	52	uintx _deduped;
aoqi@0	53	uintx _deduped_bytes;
aoqi@0	54	uintx _deduped_young;
aoqi@0	55	uintx _deduped_young_bytes;
aoqi@0	56	uintx _deduped_old;
aoqi@0	57	uintx _deduped_old_bytes;
aoqi@0	58	uintx _idle;
aoqi@0	59	uintx _exec;
aoqi@0	60	uintx _block;
aoqi@0	61
aoqi@0	62	// Time spent by the deduplication thread in different phases
aoqi@0	63	double _start;
aoqi@0	64	double _idle_elapsed;
aoqi@0	65	double _exec_elapsed;
aoqi@0	66	double _block_elapsed;
aoqi@0	67
aoqi@0	68	public:
aoqi@0	69	G1StringDedupStat();
aoqi@0	70
aoqi@0	71	void inc_inspected() {
aoqi@0	72	_inspected++;
aoqi@0	73	}
aoqi@0	74
aoqi@0	75	void inc_skipped() {
aoqi@0	76	_skipped++;
aoqi@0	77	}
aoqi@0	78
aoqi@0	79	void inc_hashed() {
aoqi@0	80	_hashed++;
aoqi@0	81	}
aoqi@0	82
aoqi@0	83	void inc_known() {
aoqi@0	84	_known++;
aoqi@0	85	}
aoqi@0	86
aoqi@0	87	void inc_new(uintx bytes) {
aoqi@0	88	_new++;
aoqi@0	89	_new_bytes += bytes;
aoqi@0	90	}
aoqi@0	91
aoqi@0	92	void inc_deduped_young(uintx bytes) {
aoqi@0	93	_deduped++;
aoqi@0	94	_deduped_bytes += bytes;
aoqi@0	95	_deduped_young++;
aoqi@0	96	_deduped_young_bytes += bytes;
aoqi@0	97	}
aoqi@0	98
aoqi@0	99	void inc_deduped_old(uintx bytes) {
aoqi@0	100	_deduped++;
aoqi@0	101	_deduped_bytes += bytes;
aoqi@0	102	_deduped_old++;
aoqi@0	103	_deduped_old_bytes += bytes;
aoqi@0	104	}
aoqi@0	105
aoqi@0	106	void mark_idle() {
aoqi@0	107	_start = os::elapsedTime();
aoqi@0	108	_idle++;
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	void mark_exec() {
aoqi@0	112	double now = os::elapsedTime();
aoqi@0	113	_idle_elapsed = now - _start;
aoqi@0	114	_start = now;
aoqi@0	115	_exec++;
aoqi@0	116	}
aoqi@0	117
aoqi@0	118	void mark_block() {
aoqi@0	119	double now = os::elapsedTime();
aoqi@0	120	_exec_elapsed += now - _start;
aoqi@0	121	_start = now;
aoqi@0	122	_block++;
aoqi@0	123	}
aoqi@0	124
aoqi@0	125	void mark_unblock() {
aoqi@0	126	double now = os::elapsedTime();
aoqi@0	127	_block_elapsed += now - _start;
aoqi@0	128	_start = now;
aoqi@0	129	}
aoqi@0	130
aoqi@0	131	void mark_done() {
aoqi@0	132	double now = os::elapsedTime();
aoqi@0	133	_exec_elapsed += now - _start;
aoqi@0	134	}
aoqi@0	135
aoqi@0	136	void add(const G1StringDedupStat& stat);
aoqi@0	137
aoqi@0	138	static void print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat);
aoqi@0	139	static void print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total);
aoqi@0	140	};
aoqi@0	141
aoqi@0	142	#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP