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/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSGCADAPTIVEPOLICYCOUNTERS_HPP
#define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSGCADAPTIVEPOLICYCOUNTERS_HPP
#include "gc_implementation/parallelScavenge/psAdaptiveSizePolicy.hpp"
#include "gc_implementation/shared/gcAdaptivePolicyCounters.hpp"
#include "gc_implementation/shared/gcPolicyCounters.hpp"
// PSGCAdaptivePolicyCounters is a holder class for performance counters
// that track the data and decisions for the ergonomics policy for the
// parallel scavenge collector.
class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
friend class VMStructs;
private:
// survivor space vs. tenuring threshold
PerfVariable* _old_promo_size;
PerfVariable* _old_eden_size;
PerfVariable* _avg_promoted_avg_counter;
PerfVariable* _avg_promoted_dev_counter;
PerfVariable* _avg_promoted_padded_avg_counter;
PerfVariable* _avg_pretenured_padded_avg;
// young gen vs. old gen sizing
PerfVariable* _avg_major_pause;
PerfVariable* _avg_major_interval;
PerfVariable* _live_space;
PerfVariable* _free_space;
PerfVariable* _avg_base_footprint;
PerfVariable* _gc_overhead_limit_exceeded_counter;
PerfVariable* _live_at_last_full_gc_counter;
PerfVariable* _old_capacity;
PerfVariable* _boundary_moved;
PerfVariable* _change_old_gen_for_min_pauses;
PerfVariable* _change_young_gen_for_maj_pauses_counter;
PerfVariable* _major_pause_old_slope;
PerfVariable* _minor_pause_old_slope;
PerfVariable* _major_pause_young_slope;
PerfVariable* _scavenge_skipped;
PerfVariable* _full_follows_scavenge;
// Use this time stamp if the gc time stamp is not available.
TimeStamp _counter_time_stamp;
protected:
PSAdaptiveSizePolicy* ps_size_policy() {
return (PSAdaptiveSizePolicy*)_size_policy;
}
public:
PSGCAdaptivePolicyCounters(const char* name, int collectors, int generations,
PSAdaptiveSizePolicy* size_policy);
inline void update_old_capacity(size_t size_in_bytes) {
_old_capacity->set_value(size_in_bytes);
}
inline void update_old_eden_size(size_t old_size) {
_old_eden_size->set_value(old_size);
}
inline void update_old_promo_size(size_t old_size) {
_old_promo_size->set_value(old_size);
}
inline void update_boundary_moved(int size_in_bytes) {
_boundary_moved->set_value(size_in_bytes);
}
inline void update_avg_promoted_avg() {
_avg_promoted_avg_counter->set_value(
(jlong)(ps_size_policy()->avg_promoted()->average())
);
}
inline void update_avg_promoted_dev() {
_avg_promoted_dev_counter->set_value(
(jlong)(ps_size_policy()->avg_promoted()->deviation())
);
}
inline void update_avg_promoted_padded_avg() {
_avg_promoted_padded_avg_counter->set_value(
(jlong)(ps_size_policy()->avg_promoted()->padded_average())
);
}
inline void update_avg_pretenured_padded_avg() {
_avg_pretenured_padded_avg->set_value(
(jlong)(ps_size_policy()->_avg_pretenured->padded_average())
);
}
inline void update_change_young_gen_for_maj_pauses() {
_change_young_gen_for_maj_pauses_counter->set_value(
ps_size_policy()->change_young_gen_for_maj_pauses());
}
inline void update_change_old_gen_for_min_pauses() {
_change_old_gen_for_min_pauses->set_value(
ps_size_policy()->change_old_gen_for_min_pauses());
}
// compute_generation_free_space() statistics
inline void update_avg_major_pause() {
_avg_major_pause->set_value(
(jlong)(ps_size_policy()->_avg_major_pause->average() * 1000.0)
);
}
inline void update_avg_major_interval() {
_avg_major_interval->set_value(
(jlong)(ps_size_policy()->_avg_major_interval->average() * 1000.0)
);
}
inline void update_major_gc_cost_counter() {
_major_gc_cost_counter->set_value(
(jlong)(ps_size_policy()->major_gc_cost() * 100.0)
);
}
inline void update_mutator_cost_counter() {
_mutator_cost_counter->set_value(
(jlong)(ps_size_policy()->mutator_cost() * 100.0)
);
}
inline void update_live_space() {
_live_space->set_value(ps_size_policy()->live_space());
}
inline void update_free_space() {
_free_space->set_value(ps_size_policy()->free_space());
}
inline void update_avg_base_footprint() {
_avg_base_footprint->set_value(
(jlong)(ps_size_policy()->avg_base_footprint()->average())
);
}
inline void update_avg_old_live() {
_avg_old_live_counter->set_value(
(jlong)(ps_size_policy()->avg_old_live()->average())
);
}
// Scale up all the slopes
inline void update_major_pause_old_slope() {
_major_pause_old_slope->set_value(
(jlong)(ps_size_policy()->major_pause_old_slope() * 1000)
);
}
inline void update_minor_pause_old_slope() {
_minor_pause_old_slope->set_value(
(jlong)(ps_size_policy()->minor_pause_old_slope() * 1000)
);
}
inline void update_major_pause_young_slope() {
_major_pause_young_slope->set_value(
(jlong)(ps_size_policy()->major_pause_young_slope() * 1000)
);
}
inline void update_gc_overhead_limit_exceeded_counter() {
_gc_overhead_limit_exceeded_counter->set_value(
(jlong) ps_size_policy()->gc_overhead_limit_exceeded());
}
inline void update_live_at_last_full_gc_counter() {
_live_at_last_full_gc_counter->set_value(
(jlong)(ps_size_policy()->live_at_last_full_gc()));
}
inline void update_scavenge_skipped(int cause) {
_scavenge_skipped->set_value(cause);
}
inline void update_full_follows_scavenge(int event) {
_full_follows_scavenge->set_value(event);
}
// Update all the counters that can be updated from the size policy.
// This should be called after all policy changes have been made
// and reflected internall in the size policy.
void update_counters_from_policy();
// Update counters that can be updated from fields internal to the
// counter or from globals. This is distinguished from counters
// that are updated via input parameters.
void update_counters();
virtual GCPolicyCounters::Name kind() const {
return GCPolicyCounters::PSGCAdaptivePolicyCountersKind;
}
};
#endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSGCADAPTIVEPOLICYCOUNTERS_HPP
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