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src/share/vm/gc_implementation/shared/gcAdaptivePolicyCounters.hpp@55a0da3d420b (annotated)

src/share/vm/gc_implementation/shared/gcAdaptivePolicyCounters.hpp

Tue, 26 Nov 2013 14:35:38 +0100

author

sjohanss

date

Tue, 26 Nov 2013 14:35:38 +0100

changeset 6148

55a0da3d420b

parent 4542

db9981fd3124

child 6198

55fb97c4c58d

permissions

-rw-r--r--

8027675: Full collections with Serial slower in JDK 8 compared to 7u40
Summary: Reduced the number of calls to follow_class_loader and instead marked and pushed the klass holder directly. Also removed unneeded calls to adjust_klass.
Reviewed-by: coleenp, jmasa, mgerdin, tschatzl

duke@435	1	/*
stefank@2314	2	* Copyright (c) 2004, 2010, 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	#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP
stefank@2314	26	#define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP
stefank@2314	27
jprovino@4542	28	#include "utilities/macros.hpp"
jprovino@4542	29	#if INCLUDE_ALL_GCS
stefank@2314	30	#include "gc_implementation/shared/adaptiveSizePolicy.hpp"
stefank@2314	31	#include "gc_implementation/shared/gcPolicyCounters.hpp"
jprovino@4542	32	#endif // INCLUDE_ALL_GCS
stefank@2314	33
duke@435	34	// This class keeps statistical information and computes the
duke@435	35	// size of the heap.
duke@435	36
duke@435	37	class GCAdaptivePolicyCounters : public GCPolicyCounters {
duke@435	38	protected:
duke@435	39	PerfVariable* _eden_size_counter;
duke@435	40	PerfVariable* _promo_size_counter;
duke@435	41
duke@435	42	PerfVariable* _young_capacity_counter;
duke@435	43
duke@435	44	PerfVariable* _minor_gc_cost_counter;
duke@435	45	PerfVariable* _major_gc_cost_counter;
duke@435	46	PerfVariable* _mutator_cost_counter;
duke@435	47
duke@435	48	PerfVariable* _avg_young_live_counter;
duke@435	49	PerfVariable* _avg_old_live_counter;
duke@435	50
duke@435	51	PerfVariable* _avg_minor_pause_counter;
duke@435	52	PerfVariable* _avg_minor_interval_counter;
duke@435	53
duke@435	54	#ifdef NOT_PRODUCT
duke@435	55	PerfVariable* _minor_pause_counter;
duke@435	56	#endif
duke@435	57
duke@435	58	PerfVariable* _change_young_gen_for_min_pauses_counter;
duke@435	59	PerfVariable* _change_young_gen_for_throughput_counter;
duke@435	60	PerfVariable* _change_old_gen_for_maj_pauses_counter;
duke@435	61	PerfVariable* _change_old_gen_for_throughput_counter;
duke@435	62	PerfVariable* _decrease_for_footprint_counter;
duke@435	63
duke@435	64	PerfVariable* _minor_pause_young_slope_counter;
duke@435	65	PerfVariable* _major_pause_old_slope_counter;
duke@435	66
duke@435	67	PerfVariable* _decide_at_full_gc_counter;
duke@435	68
duke@435	69	PerfVariable* _survived_counter;
duke@435	70	PerfVariable* _promoted_counter;
duke@435	71
duke@435	72	PerfVariable* _avg_survived_avg_counter;
duke@435	73	PerfVariable* _avg_survived_dev_counter;
duke@435	74	PerfVariable* _avg_survived_padded_avg_counter;
duke@435	75
duke@435	76	PerfVariable* _survivor_overflowed_counter;
duke@435	77	PerfVariable* _increment_tenuring_threshold_for_gc_cost_counter;
duke@435	78	PerfVariable* _decrement_tenuring_threshold_for_gc_cost_counter;
duke@435	79	PerfVariable* _decrement_tenuring_threshold_for_survivor_limit_counter;
duke@435	80
duke@435	81	PerfVariable* _minor_collection_slope_counter;
duke@435	82	PerfVariable* _major_collection_slope_counter;
duke@435	83
duke@435	84	AdaptiveSizePolicy* _size_policy;
duke@435	85
duke@435	86	inline void update_eden_size() {
duke@435	87	size_t eden_size_in_bytes = size_policy()->calculated_eden_size_in_bytes();
duke@435	88	_eden_size_counter->set_value(eden_size_in_bytes);
duke@435	89	}
duke@435	90
duke@435	91	inline void update_promo_size() {
duke@435	92	_promo_size_counter->set_value(
duke@435	93	size_policy()->calculated_promo_size_in_bytes());
duke@435	94	}
duke@435	95
duke@435	96	inline void update_avg_minor_pause_counter() {
duke@435	97	_avg_minor_pause_counter->set_value((jlong)
duke@435	98	(size_policy()->avg_minor_pause()->average() * 1000.0));
duke@435	99	}
duke@435	100	inline void update_avg_minor_interval_counter() {
duke@435	101	_avg_minor_interval_counter->set_value((jlong)
duke@435	102	(size_policy()->avg_minor_interval()->average() * 1000.0));
duke@435	103	}
duke@435	104
duke@435	105	#ifdef NOT_PRODUCT
duke@435	106	inline void update_minor_pause_counter() {
duke@435	107	_minor_pause_counter->set_value((jlong)
duke@435	108	(size_policy()->avg_minor_pause()->last_sample() * 1000.0));
duke@435	109	}
duke@435	110	#endif
duke@435	111	inline void update_minor_gc_cost_counter() {
duke@435	112	_minor_gc_cost_counter->set_value((jlong)
duke@435	113	(size_policy()->minor_gc_cost() * 100.0));
duke@435	114	}
duke@435	115
duke@435	116	inline void update_avg_young_live_counter() {
duke@435	117	_avg_young_live_counter->set_value(
duke@435	118	(jlong)(size_policy()->avg_young_live()->average())
duke@435	119	);
duke@435	120	}
duke@435	121
duke@435	122	inline void update_avg_survived_avg_counters() {
duke@435	123	_avg_survived_avg_counter->set_value(
duke@435	124	(jlong)(size_policy()->_avg_survived->average())
duke@435	125	);
duke@435	126	}
duke@435	127	inline void update_avg_survived_dev_counters() {
duke@435	128	_avg_survived_dev_counter->set_value(
duke@435	129	(jlong)(size_policy()->_avg_survived->deviation())
duke@435	130	);
duke@435	131	}
duke@435	132	inline void update_avg_survived_padded_avg_counters() {
duke@435	133	_avg_survived_padded_avg_counter->set_value(
duke@435	134	(jlong)(size_policy()->_avg_survived->padded_average())
duke@435	135	);
duke@435	136	}
duke@435	137
duke@435	138	inline void update_change_old_gen_for_throughput() {
duke@435	139	_change_old_gen_for_throughput_counter->set_value(
duke@435	140	size_policy()->change_old_gen_for_throughput());
duke@435	141	}
duke@435	142	inline void update_change_young_gen_for_throughput() {
duke@435	143	_change_young_gen_for_throughput_counter->set_value(
duke@435	144	size_policy()->change_young_gen_for_throughput());
duke@435	145	}
duke@435	146	inline void update_decrease_for_footprint() {
duke@435	147	_decrease_for_footprint_counter->set_value(
duke@435	148	size_policy()->decrease_for_footprint());
duke@435	149	}
duke@435	150
duke@435	151	inline void update_decide_at_full_gc_counter() {
duke@435	152	_decide_at_full_gc_counter->set_value(
duke@435	153	size_policy()->decide_at_full_gc());
duke@435	154	}
duke@435	155
duke@435	156	inline void update_minor_pause_young_slope_counter() {
duke@435	157	_minor_pause_young_slope_counter->set_value(
duke@435	158	(jlong)(size_policy()->minor_pause_young_slope() * 1000)
duke@435	159	);
duke@435	160	}
duke@435	161
duke@435	162	virtual void update_counters_from_policy();
duke@435	163
duke@435	164	protected:
duke@435	165	virtual AdaptiveSizePolicy* size_policy() { return _size_policy; }
duke@435	166
duke@435	167	public:
duke@435	168	GCAdaptivePolicyCounters(const char* name,
duke@435	169	int collectors,
duke@435	170	int generations,
duke@435	171	AdaptiveSizePolicy* size_policy);
duke@435	172
duke@435	173	inline void update_survived(size_t survived) {
duke@435	174	_survived_counter->set_value(survived);
duke@435	175	}
duke@435	176	inline void update_promoted(size_t promoted) {
duke@435	177	_promoted_counter->set_value(promoted);
duke@435	178	}
duke@435	179	inline void update_young_capacity(size_t size_in_bytes) {
duke@435	180	_young_capacity_counter->set_value(size_in_bytes);
duke@435	181	}
duke@435	182
duke@435	183	virtual void update_counters();
duke@435	184
duke@435	185	inline void update_survivor_size_counters() {
duke@435	186	desired_survivor_size()->set_value(
duke@435	187	size_policy()->calculated_survivor_size_in_bytes());
duke@435	188	}
duke@435	189	inline void update_survivor_overflowed(bool survivor_overflowed) {
duke@435	190	_survivor_overflowed_counter->set_value(survivor_overflowed);
duke@435	191	}
jwilhelm@4129	192	inline void update_tenuring_threshold(uint threshold) {
duke@435	193	tenuring_threshold()->set_value(threshold);
duke@435	194	}
duke@435	195	inline void update_increment_tenuring_threshold_for_gc_cost() {
duke@435	196	_increment_tenuring_threshold_for_gc_cost_counter->set_value(
duke@435	197	size_policy()->increment_tenuring_threshold_for_gc_cost());
duke@435	198	}
duke@435	199	inline void update_decrement_tenuring_threshold_for_gc_cost() {
duke@435	200	_decrement_tenuring_threshold_for_gc_cost_counter->set_value(
duke@435	201	size_policy()->decrement_tenuring_threshold_for_gc_cost());
duke@435	202	}
duke@435	203	inline void update_decrement_tenuring_threshold_for_survivor_limit() {
duke@435	204	_decrement_tenuring_threshold_for_survivor_limit_counter->set_value(
duke@435	205	size_policy()->decrement_tenuring_threshold_for_survivor_limit());
duke@435	206	}
duke@435	207	inline void update_change_young_gen_for_min_pauses() {
duke@435	208	_change_young_gen_for_min_pauses_counter->set_value(
duke@435	209	size_policy()->change_young_gen_for_min_pauses());
duke@435	210	}
duke@435	211	inline void update_change_old_gen_for_maj_pauses() {
duke@435	212	_change_old_gen_for_maj_pauses_counter->set_value(
duke@435	213	size_policy()->change_old_gen_for_maj_pauses());
duke@435	214	}
duke@435	215
duke@435	216	inline void update_minor_collection_slope_counter() {
duke@435	217	_minor_collection_slope_counter->set_value(
duke@435	218	(jlong)(size_policy()->minor_collection_slope() * 1000)
duke@435	219	);
duke@435	220	}
duke@435	221
duke@435	222	inline void update_major_collection_slope_counter() {
duke@435	223	_major_collection_slope_counter->set_value(
duke@435	224	(jlong)(size_policy()->major_collection_slope() * 1000)
duke@435	225	);
duke@435	226	}
duke@435	227
duke@435	228	void set_size_policy(AdaptiveSizePolicy* v) { _size_policy = v; }
duke@435	229
duke@435	230	virtual GCPolicyCounters::Name kind() const {
duke@435	231	return GCPolicyCounters::GCAdaptivePolicyCountersKind;
duke@435	232	}
duke@435	233	};
stefank@2314	234
stefank@2314	235	#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP