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/*
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* Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// PSGCAdaptivePolicyCounters is a holder class for performance counters
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// that track the data and decisions for the ergonomics policy for the
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// parallel scavenge collector.
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class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
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friend class VMStructs;
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private:
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// survivor space vs. tenuring threshold
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PerfVariable* _old_promo_size;
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PerfVariable* _old_eden_size;
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PerfVariable* _avg_promoted_avg_counter;
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PerfVariable* _avg_promoted_dev_counter;
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PerfVariable* _avg_promoted_padded_avg_counter;
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PerfVariable* _avg_pretenured_padded_avg;
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// young gen vs. old gen sizing
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PerfVariable* _avg_major_pause;
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PerfVariable* _avg_major_interval;
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PerfVariable* _live_space;
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PerfVariable* _free_space;
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PerfVariable* _avg_base_footprint;
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PerfVariable* _gc_time_limit_exceeded;
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PerfVariable* _live_at_last_full_gc;
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PerfVariable* _old_capacity;
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PerfVariable* _boundary_moved;
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PerfVariable* _change_old_gen_for_min_pauses;
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PerfVariable* _change_young_gen_for_maj_pauses_counter;
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PerfVariable* _major_pause_old_slope;
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PerfVariable* _minor_pause_old_slope;
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PerfVariable* _major_pause_young_slope;
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PerfVariable* _scavenge_skipped;
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PerfVariable* _full_follows_scavenge;
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// Use this time stamp if the gc time stamp is not available.
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TimeStamp _counter_time_stamp;
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protected:
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PSAdaptiveSizePolicy* ps_size_policy() {
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return (PSAdaptiveSizePolicy*)_size_policy;
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}
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public:
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PSGCAdaptivePolicyCounters(const char* name, int collectors, int generations,
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PSAdaptiveSizePolicy* size_policy);
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inline void update_old_capacity(size_t size_in_bytes) {
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_old_capacity->set_value(size_in_bytes);
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}
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inline void update_old_eden_size(size_t old_size) {
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_old_eden_size->set_value(old_size);
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}
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inline void update_old_promo_size(size_t old_size) {
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_old_promo_size->set_value(old_size);
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}
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inline void update_boundary_moved(int size_in_bytes) {
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_boundary_moved->set_value(size_in_bytes);
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}
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inline void update_avg_promoted_avg() {
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_avg_promoted_avg_counter->set_value(
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(jlong)(ps_size_policy()->avg_promoted()->average())
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);
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}
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inline void update_avg_promoted_dev() {
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_avg_promoted_dev_counter->set_value(
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(jlong)(ps_size_policy()->avg_promoted()->deviation())
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);
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}
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inline void update_avg_promoted_padded_avg() {
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_avg_promoted_padded_avg_counter->set_value(
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(jlong)(ps_size_policy()->avg_promoted()->padded_average())
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);
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}
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inline void update_avg_pretenured_padded_avg() {
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_avg_pretenured_padded_avg->set_value(
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(jlong)(ps_size_policy()->_avg_pretenured->padded_average())
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);
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}
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inline void update_change_young_gen_for_maj_pauses() {
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_change_young_gen_for_maj_pauses_counter->set_value(
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ps_size_policy()->change_young_gen_for_maj_pauses());
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}
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inline void update_change_old_gen_for_min_pauses() {
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_change_old_gen_for_min_pauses->set_value(
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ps_size_policy()->change_old_gen_for_min_pauses());
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}
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// compute_generation_free_space() statistics
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inline void update_avg_major_pause() {
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_avg_major_pause->set_value(
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(jlong)(ps_size_policy()->_avg_major_pause->average() * 1000.0)
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);
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}
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inline void update_avg_major_interval() {
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_avg_major_interval->set_value(
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(jlong)(ps_size_policy()->_avg_major_interval->average() * 1000.0)
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);
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}
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inline void update_major_gc_cost_counter() {
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_major_gc_cost_counter->set_value(
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(jlong)(ps_size_policy()->major_gc_cost() * 100.0)
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);
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}
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inline void update_mutator_cost_counter() {
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_mutator_cost_counter->set_value(
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(jlong)(ps_size_policy()->mutator_cost() * 100.0)
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);
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}
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inline void update_live_space() {
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_live_space->set_value(ps_size_policy()->live_space());
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}
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inline void update_free_space() {
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_free_space->set_value(ps_size_policy()->free_space());
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}
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inline void update_avg_base_footprint() {
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_avg_base_footprint->set_value(
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(jlong)(ps_size_policy()->avg_base_footprint()->average())
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);
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}
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inline void update_avg_old_live() {
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_avg_old_live_counter->set_value(
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(jlong)(ps_size_policy()->avg_old_live()->average())
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);
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}
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// Scale up all the slopes
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inline void update_major_pause_old_slope() {
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_major_pause_old_slope->set_value(
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(jlong)(ps_size_policy()->major_pause_old_slope() * 1000)
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);
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}
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inline void update_minor_pause_old_slope() {
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_minor_pause_old_slope->set_value(
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(jlong)(ps_size_policy()->minor_pause_old_slope() * 1000)
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);
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}
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inline void update_major_pause_young_slope() {
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_major_pause_young_slope->set_value(
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(jlong)(ps_size_policy()->major_pause_young_slope() * 1000)
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);
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}
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inline void update_scavenge_skipped(int cause) {
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_scavenge_skipped->set_value(cause);
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}
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inline void update_full_follows_scavenge(int event) {
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_full_follows_scavenge->set_value(event);
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}
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// Update all the counters that can be updated from the size policy.
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// This should be called after all policy changes have been made
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// and reflected internall in the size policy.
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void update_counters_from_policy();
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// Update counters that can be updated from fields internal to the
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// counter or from globals. This is distinguished from counters
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// that are updated via input parameters.
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void update_counters();
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virtual GCPolicyCounters::Name kind() const {
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return GCPolicyCounters::PSGCAdaptivePolicyCountersKind;
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}
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};
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