jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcTrace.hpp@55a0da3d420b

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

     1 /*

     2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP

    28 #include "gc_interface/gcCause.hpp"

    29 #include "gc_interface/gcName.hpp"

    30 #include "gc_implementation/shared/gcWhen.hpp"

    31 #include "gc_implementation/shared/copyFailedInfo.hpp"

    32 #include "memory/allocation.hpp"

    33 #include "memory/referenceType.hpp"

    34 #if INCLUDE_ALL_GCS

    35 #include "gc_implementation/g1/g1YCTypes.hpp"

    36 #endif

    37 #include "utilities/macros.hpp"

    39 typedef uint GCId;

    41 class EvacuationInfo;

    42 class GCHeapSummary;

    43 class MetaspaceSummary;

    44 class PSHeapSummary;

    45 class ReferenceProcessorStats;

    46 class TimePartitions;

    47 class BoolObjectClosure;

    49 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {

    50   static const jlong UNSET_TIMESTAMP = -1;

    52  public:

    53   static const GCId UNSET_GCID = (GCId)-1;

    55  private:

    56   GCId _id;

    57   GCName _name;

    58   GCCause::Cause _cause;

    59   jlong _start_timestamp;

    60   jlong _end_timestamp;

    61   jlong _sum_of_pauses;

    62   jlong _longest_pause;

    64  public:

    65   SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),

    66       _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}

    68   void set_id(GCId id) { _id = id; }

    69   GCId id() const { return _id; }

    71   void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }

    72   jlong start_timestamp() const { return _start_timestamp; }

    74   void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }

    75   jlong end_timestamp() const { return _end_timestamp; }

    77   void set_name(GCName name) { _name = name; }

    78   GCName name() const { return _name; }

    80   void set_cause(GCCause::Cause cause) { _cause = cause; }

    81   GCCause::Cause cause() const { return _cause; }

    83   void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }

    84   jlong sum_of_pauses() const { return _sum_of_pauses; }

    86   void set_longest_pause(jlong duration) { _longest_pause = duration; }

    87   jlong longest_pause() const { return _longest_pause; }

    88 };

    90 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {

    91   void* _dense_prefix;

    92  public:

    93   ParallelOldGCInfo() : _dense_prefix(NULL) {}

    94   void report_dense_prefix(void* addr) {

    95     _dense_prefix = addr;

    96   }

    97   void* dense_prefix() const { return _dense_prefix; }

    98 };

   100 #if INCLUDE_ALL_GCS

   102 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {

   103   G1YCType _type;

   104  public:

   105   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}

   106   void set_type(G1YCType type) {

   107     _type = type;

   108   }

   109   G1YCType type() const { return _type; }

   110 };

   112 #endif // INCLUDE_ALL_GCS

   114 class GCTracer : public ResourceObj {

   115  protected:

   116   SharedGCInfo _shared_gc_info;

   118  public:

   119   void report_gc_start(GCCause::Cause cause, jlong timestamp);

   120   void report_gc_end(jlong timestamp, TimePartitions* time_partitions);

   121   void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const;

   122   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;

   123   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;

   124   bool has_reported_gc_start() const;

   126  protected:

   127   GCTracer(GCName name) : _shared_gc_info(name) {}

   128   virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);

   129   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);

   131  private:

   132   void send_garbage_collection_event() const;

   133   void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;

   134   void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;

   135   void send_reference_stats_event(ReferenceType type, size_t count) const;

   136   void send_phase_events(TimePartitions* time_partitions) const;

   137 };

   139 class YoungGCTracer : public GCTracer {

   140   static const uint UNSET_TENURING_THRESHOLD = (uint) -1;

   142   uint _tenuring_threshold;

   144  protected:

   145   YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}

   146   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);

   148  public:

   149   void report_promotion_failed(const PromotionFailedInfo& pf_info);

   150   void report_tenuring_threshold(const uint tenuring_threshold);

   152  private:

   153   void send_young_gc_event() const;

   154   void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;

   155 };

   157 class OldGCTracer : public GCTracer {

   158  protected:

   159   OldGCTracer(GCName name) : GCTracer(name) {}

   160   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);

   162  public:

   163   void report_concurrent_mode_failure();

   165  private:

   166   void send_old_gc_event() const;

   167   void send_concurrent_mode_failure_event();

   168 };

   170 class ParallelOldTracer : public OldGCTracer {

   171   ParallelOldGCInfo _parallel_old_gc_info;

   173  public:

   174   ParallelOldTracer() : OldGCTracer(ParallelOld) {}

   175   void report_dense_prefix(void* dense_prefix);

   177  protected:

   178   void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);

   180  private:

   181   void send_parallel_old_event() const;

   182 };

   184 class SerialOldTracer : public OldGCTracer {

   185  public:

   186   SerialOldTracer() : OldGCTracer(SerialOld) {}

   187 };

   189 class ParallelScavengeTracer : public YoungGCTracer {

   190  public:

   191   ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}

   192 };

   194 class DefNewTracer : public YoungGCTracer {

   195  public:

   196   DefNewTracer() : YoungGCTracer(DefNew) {}

   197 };

   199 class ParNewTracer : public YoungGCTracer {

   200  public:

   201   ParNewTracer() : YoungGCTracer(ParNew) {}

   202 };

   204 #if INCLUDE_ALL_GCS

   205 class G1NewTracer : public YoungGCTracer {

   206   G1YoungGCInfo _g1_young_gc_info;

   208  public:

   209   G1NewTracer() : YoungGCTracer(G1New) {}

   211   void report_yc_type(G1YCType type);

   212   void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);

   213   void report_evacuation_info(EvacuationInfo* info);

   214   void report_evacuation_failed(EvacuationFailedInfo& ef_info);

   216  private:

   217   void send_g1_young_gc_event();

   218   void send_evacuation_info_event(EvacuationInfo* info);

   219   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;

   220 };

   221 #endif

   223 class CMSTracer : public OldGCTracer {

   224  public:

   225   CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}

   226 };

   228 class G1OldTracer : public OldGCTracer {

   229  public:

   230   G1OldTracer() : OldGCTracer(G1Old) {}

   231 };

   233 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/gcTrace.hpp@55a0da3d420b

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