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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

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 #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