hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,300 @@
+/*
+ * Copyright 2004-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// CMSGCAdaptivePolicyCounters is a holder class for performance counters
+// that track the data and decisions for the ergonomics policy for the
+// concurrent mark sweep collector
+
+class CMSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
+ friend class VMStructs;
+
+ private:
+
+ // Capacity of tenured generation recorded at the end of
+ // any collection.
+ PerfVariable* _cms_capacity_counter; // Make this common with PS _old_capacity
+
+ // Average stop-the-world pause time for both initial and
+ // remark pauses sampled at the end of the checkpointRootsFinalWork.
+ PerfVariable* _avg_cms_STW_time_counter;
+ // Average stop-the-world (STW) GC cost for the STW pause time
+ // _avg_cms_STW_time_counter.
+ PerfVariable* _avg_cms_STW_gc_cost_counter;
+
+#ifdef NOT_PRODUCT
+ // These are useful to see how the most recent values of these
+ // counters compare to their respective averages but
+ // do not control behavior.
+ PerfVariable* _initial_pause_counter;
+ PerfVariable* _remark_pause_counter;
+#endif
+
+ // Average of the initial marking pause for a concurrent collection.
+ PerfVariable* _avg_initial_pause_counter;
+ // Average of the remark pause for a concurrent collection.
+ PerfVariable* _avg_remark_pause_counter;
+
+ // Average for the sum of all the concurrent times per collection.
+ PerfVariable* _avg_concurrent_time_counter;
+ // Average for the time between the most recent end of a
+ // concurrent collection and the beginning of the next
+ // concurrent collection.
+ PerfVariable* _avg_concurrent_interval_counter;
+ // Average of the concurrent GC costs based on _avg_concurrent_time_counter
+ // and _avg_concurrent_interval_counter.
+ PerfVariable* _avg_concurrent_gc_cost_counter;
+
+ // Average of the free space in the tenured generation at the
+ // end of the sweep of the tenured generation.
+ PerfVariable* _avg_cms_free_counter;
+ // Average of the free space in the tenured generation at the
+ // start of the sweep of the tenured genertion.
+ PerfVariable* _avg_cms_free_at_sweep_counter;
+ // Average of the free space in the tenured generation at the
+ // after any resizing of the tenured generation at the end
+ // of a collection of the tenured generation.
+ PerfVariable* _avg_cms_promo_counter;
+
+ // Average of the mark-sweep-compact (MSC) pause time for a collection
+ // of the tenured generation.
+ PerfVariable* _avg_msc_pause_counter;
+ // Average for the time between the most recent end of a
+ // MSC collection and the beginning of the next
+ // MSC collection.
+ PerfVariable* _avg_msc_interval_counter;
+ // Average for the GC cost of a MSC collection based on
+ // _avg_msc_pause_counter and _avg_msc_interval_counter.
+ PerfVariable* _msc_gc_cost_counter;
+
+ // Average of the mark-sweep (MS) pause time for a collection
+ // of the tenured generation.
+ PerfVariable* _avg_ms_pause_counter;
+ // Average for the time between the most recent end of a
+ // MS collection and the beginning of the next
+ // MS collection.
+ PerfVariable* _avg_ms_interval_counter;
+ // Average for the GC cost of a MS collection based on
+ // _avg_ms_pause_counter and _avg_ms_interval_counter.
+ PerfVariable* _ms_gc_cost_counter;
+
+ // Average of the bytes promoted per minor collection.
+ PerfVariable* _promoted_avg_counter;
+ // Average of the deviation of the promoted average
+ PerfVariable* _promoted_avg_dev_counter;
+ // Padded average of the bytes promoted per minor colleciton
+ PerfVariable* _promoted_padded_avg_counter;
+
+ // See description of the _change_young_gen_for_maj_pauses
+ // variable recently in cmsAdaptiveSizePolicy.hpp.
+ PerfVariable* _change_young_gen_for_maj_pauses_counter;
+
+ // See descriptions of _remark_pause_old_slope, _initial_pause_old_slope,
+ // etc. variables recently in cmsAdaptiveSizePolicy.hpp.
+ PerfVariable* _remark_pause_old_slope_counter;
+ PerfVariable* _initial_pause_old_slope_counter;
+ PerfVariable* _remark_pause_young_slope_counter;
+ PerfVariable* _initial_pause_young_slope_counter;
+
+ CMSAdaptiveSizePolicy* cms_size_policy() {
+ assert(_size_policy->kind() ==
+ AdaptiveSizePolicy::_gc_cms_adaptive_size_policy,
+ "Wrong size policy");
+ return (CMSAdaptiveSizePolicy*)_size_policy;
+ }
+
+ inline void update_avg_cms_STW_time_counter() {
+ _avg_cms_STW_time_counter->set_value(
+ (jlong) (cms_size_policy()->avg_cms_STW_time()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_cms_STW_gc_cost_counter() {
+ _avg_cms_STW_gc_cost_counter->set_value(
+ (jlong) (cms_size_policy()->avg_cms_STW_gc_cost()->average() * 100.0));
+ }
+
+ inline void update_avg_initial_pause_counter() {
+ _avg_initial_pause_counter->set_value(
+ (jlong) (cms_size_policy()->avg_initial_pause()->average() *
+ (double) MILLIUNITS));
+ }
+#ifdef NOT_PRODUCT
+ inline void update_avg_remark_pause_counter() {
+ _avg_remark_pause_counter->set_value(
+ (jlong) (cms_size_policy()-> avg_remark_pause()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_initial_pause_counter() {
+ _initial_pause_counter->set_value(
+ (jlong) (cms_size_policy()->avg_initial_pause()->average() *
+ (double) MILLIUNITS));
+ }
+#endif
+ inline void update_remark_pause_counter() {
+ _remark_pause_counter->set_value(
+ (jlong) (cms_size_policy()-> avg_remark_pause()->last_sample() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_concurrent_time_counter() {
+ _avg_concurrent_time_counter->set_value(
+ (jlong) (cms_size_policy()->avg_concurrent_time()->last_sample() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_concurrent_interval_counter() {
+ _avg_concurrent_interval_counter->set_value(
+ (jlong) (cms_size_policy()->avg_concurrent_interval()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_concurrent_gc_cost_counter() {
+ _avg_concurrent_gc_cost_counter->set_value(
+ (jlong) (cms_size_policy()->avg_concurrent_gc_cost()->average() * 100.0));
+ }
+
+ inline void update_avg_cms_free_counter() {
+ _avg_cms_free_counter->set_value(
+ (jlong) cms_size_policy()->avg_cms_free()->average());
+ }
+
+ inline void update_avg_cms_free_at_sweep_counter() {
+ _avg_cms_free_at_sweep_counter->set_value(
+ (jlong) cms_size_policy()->avg_cms_free_at_sweep()->average());
+ }
+
+ inline void update_avg_cms_promo_counter() {
+ _avg_cms_promo_counter->set_value(
+ (jlong) cms_size_policy()->avg_cms_promo()->average());
+ }
+
+ inline void update_avg_old_live_counter() {
+ _avg_old_live_counter->set_value(
+ (jlong)(cms_size_policy()->avg_old_live()->average())
+ );
+ }
+
+ inline void update_avg_msc_pause_counter() {
+ _avg_msc_pause_counter->set_value(
+ (jlong) (cms_size_policy()->avg_msc_pause()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_msc_interval_counter() {
+ _avg_msc_interval_counter->set_value(
+ (jlong) (cms_size_policy()->avg_msc_interval()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_msc_gc_cost_counter() {
+ _msc_gc_cost_counter->set_value(
+ (jlong) (cms_size_policy()->avg_msc_gc_cost()->average() * 100.0));
+ }
+
+ inline void update_avg_ms_pause_counter() {
+ _avg_ms_pause_counter->set_value(
+ (jlong) (cms_size_policy()->avg_ms_pause()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_avg_ms_interval_counter() {
+ _avg_ms_interval_counter->set_value(
+ (jlong) (cms_size_policy()->avg_ms_interval()->average() *
+ (double) MILLIUNITS));
+ }
+
+ inline void update_ms_gc_cost_counter() {
+ _ms_gc_cost_counter->set_value(
+ (jlong) (cms_size_policy()->avg_ms_gc_cost()->average() * 100.0));
+ }
+
+ inline void update_major_gc_cost_counter() {
+ _major_gc_cost_counter->set_value(
+ (jlong)(cms_size_policy()->cms_gc_cost() * 100.0)
+ );
+ }
+ inline void update_mutator_cost_counter() {
+ _mutator_cost_counter->set_value(
+ (jlong)(cms_size_policy()->mutator_cost() * 100.0)
+ );
+ }
+
+ inline void update_avg_promoted_avg(CMSGCStats* gc_stats) {
+ _promoted_avg_counter->set_value(
+ (jlong)(gc_stats->avg_promoted()->average())
+ );
+ }
+ inline void update_avg_promoted_dev(CMSGCStats* gc_stats) {
+ _promoted_avg_dev_counter->set_value(
+ (jlong)(gc_stats->avg_promoted()->deviation())
+ );
+ }
+ inline void update_avg_promoted_padded_avg(CMSGCStats* gc_stats) {
+ _promoted_padded_avg_counter->set_value(
+ (jlong)(gc_stats->avg_promoted()->padded_average())
+ );
+ }
+ inline void update_remark_pause_old_slope_counter() {
+ _remark_pause_old_slope_counter->set_value(
+ (jlong)(cms_size_policy()->remark_pause_old_slope() * 1000)
+ );
+ }
+ inline void update_initial_pause_old_slope_counter() {
+ _initial_pause_old_slope_counter->set_value(
+ (jlong)(cms_size_policy()->initial_pause_old_slope() * 1000)
+ );
+ }
+ inline void update_remark_pause_young_slope_counter() {
+ _remark_pause_young_slope_counter->set_value(
+ (jlong)(cms_size_policy()->remark_pause_young_slope() * 1000)
+ );
+ }
+ inline void update_initial_pause_young_slope_counter() {
+ _initial_pause_young_slope_counter->set_value(
+ (jlong)(cms_size_policy()->initial_pause_young_slope() * 1000)
+ );
+ }
+ inline void update_change_young_gen_for_maj_pauses() {
+ _change_young_gen_for_maj_pauses_counter->set_value(
+ cms_size_policy()->change_young_gen_for_maj_pauses());
+ }
+
+ public:
+ CMSGCAdaptivePolicyCounters(const char* name, int collectors, int generations,
+ AdaptiveSizePolicy* size_policy);
+
+ // update counters
+ void update_counters();
+ void update_counters(CMSGCStats* gc_stats);
+ void update_counters_from_policy();
+
+ inline void update_cms_capacity_counter(size_t size_in_bytes) {
+ _cms_capacity_counter->set_value(size_in_bytes);
+ }
+
+ virtual GCPolicyCounters::Name kind() const {
+ return GCPolicyCounters::CMSGCAdaptivePolicyCountersKind;
+ }
+};