1 /*

     2  * Copyright (c) 2019, 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  */

    24 

    25 #ifndef SHARE_GC_G1_G1TRACE_HPP

    26 #define SHARE_GC_G1_G1TRACE_HPP

    27 

    28 #include "gc/g1/g1YCTypes.hpp"

    29 #include "gc/shared/gcTrace.hpp"

    30 

    31 class G1EvacuationInfo;

    32 class G1HeapSummary;

    33 class G1EvacSummary;

    34 

    35 class G1YoungGCInfo {

    36   G1YCType _type;

    37 public:

    38   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}

    39   void set_type(G1YCType type) {

    40     _type = type;

    41   }

    42   G1YCType type() const { return _type; }

    43 };

    44 

    45 class G1NewTracer : public YoungGCTracer {

    46   G1YoungGCInfo _g1_young_gc_info;

    47 

    48 public:

    49   G1NewTracer() : YoungGCTracer(G1New) {}

    50 

    51   void initialize();

    52   void report_yc_type(G1YCType type);

    53   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

    54   void report_evacuation_info(G1EvacuationInfo* info);

    55   void report_evacuation_failed(EvacuationFailedInfo& ef_info);

    56 

    57   void report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const;

    58 

    59   void report_basic_ihop_statistics(size_t threshold,

    60                                     size_t target_occupancy,

    61                                     size_t current_occupancy,

    62                                     size_t last_allocation_size,

    63                                     double last_allocation_duration,

    64                                     double last_marking_length);

    65   void report_adaptive_ihop_statistics(size_t threshold,

    66                                        size_t internal_target_occupancy,

    67                                        size_t current_occupancy,

    68                                        size_t additional_buffer_size,

    69                                        double predicted_allocation_rate,

    70                                        double predicted_marking_length,

    71                                        bool prediction_active);

    72 private:

    73   void send_g1_young_gc_event();

    74   void send_evacuation_info_event(G1EvacuationInfo* info);

    75   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;

    76 

    77   void send_young_evacuation_statistics(const G1EvacSummary& summary) const;

    78   void send_old_evacuation_statistics(const G1EvacSummary& summary) const;

    79 

    80   void send_basic_ihop_statistics(size_t threshold,

    81                                   size_t target_occupancy,

    82                                   size_t current_occupancy,

    83                                   size_t last_allocation_size,

    84                                   double last_allocation_duration,

    85                                   double last_marking_length);

    86   void send_adaptive_ihop_statistics(size_t threshold,

    87                                      size_t internal_target_occupancy,

    88                                      size_t current_occupancy,

    89                                      size_t additional_buffer_size,

    90                                      double predicted_allocation_rate,

    91                                      double predicted_marking_length,

    92                                      bool prediction_active);

    93 };

    94 

    95 class G1OldTracer : public OldGCTracer {

    96  protected:

    97   void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);

    98  public:

    99   G1OldTracer() : OldGCTracer(G1Old) {}

   100   void set_gc_cause(GCCause::Cause cause);

   101 };

   102 

   103 class G1FullGCTracer : public OldGCTracer {

   104 public:

   105   G1FullGCTracer() : OldGCTracer(G1Full) {}

   106 };

   107 

   108 class G1MMUTracer : public AllStatic {

   109   static void send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms);

   110 

   111 public:

   112   static void report_mmu(double time_slice_sec, double gc_time_sec, double max_time_sec);

   113 };

   114 

   115 #endif