1 /*

     2  * Copyright (c) 2001, 2018, 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 #include "precompiled.hpp"

    25 #include "gc/shared/gcTimer.hpp"

    26 #include "utilities/ticks.hpp"

    27 #include "unittest.hpp"

    28 

    29 class GCTimerTest {

    30  public:

    31   static void register_gc_start(GCTimer* const timer, jlong ticks) {

    32     timer->register_gc_start(Ticks(ticks));

    33   }

    34   static void register_gc_end(GCTimer* const timer, jlong ticks) {

    35     timer->register_gc_end(Ticks(ticks));

    36   }

    37 };

    38 

    39 TEST(GCTimer, start) {

    40   GCTimer gc_timer;

    41   GCTimerTest::register_gc_start(&gc_timer, 1);

    42 

    43   EXPECT_EQ(1, gc_timer.gc_start().value());

    44 }

    45 

    46 TEST(GCTimer, end) {

    47   GCTimer gc_timer;

    48 

    49   GCTimerTest::register_gc_start(&gc_timer, 1);

    50   GCTimerTest::register_gc_end(&gc_timer, 2);

    51 

    52   EXPECT_EQ(2, gc_timer.gc_end().value());

    53 }

    54 

    55 class TimePartitionPhasesIteratorTest {

    56  public:

    57 

    58   static void validate_gc_phase(GCPhase* phase, int level, const char* name, const jlong& start, const jlong& end) {

    59     EXPECT_EQ(level, phase->level());

    60     EXPECT_STREQ(name, phase->name());

    61     EXPECT_EQ(start, phase->start().value());

    62     EXPECT_EQ(end, phase->end().value());

    63   }

    64 

    65   static void validate_pauses(const TimePartitions& time_partitions, const Tickspan& expected_sum_of_pauses, const Tickspan& expected_longest_pause) {

    66     EXPECT_EQ(expected_sum_of_pauses, time_partitions.sum_of_pauses());

    67     EXPECT_EQ(expected_longest_pause, time_partitions.longest_pause());

    68   }

    69   static void validate_pauses(const TimePartitions& time_partitions, const Tickspan& expected_pause) {

    70     TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, expected_pause, expected_pause);

    71   }

    72   static void validate_pauses(const TimePartitions& time_partitions, jlong end, jlong start) {

    73     TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Ticks(end) - Ticks(start));

    74   }

    75   static void validate_pauses(const TimePartitions& time_partitions, jlong all_end, jlong all_start, jlong longest_end, jlong longest_start) {

    76     TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Ticks(all_end) - Ticks(all_start), Ticks(longest_end) - Ticks(longest_start));

    77   }

    78 

    79   static void report_gc_phase_start(TimePartitions* const partitions, const char* name, jlong ticks, GCPhase::PhaseType type=GCPhase::PausePhaseType) {

    80     partitions->report_gc_phase_start(name, Ticks(ticks), type);

    81   }

    82 

    83   static void report_gc_phase_end(TimePartitions* const partitions, jlong ticks, GCPhase::PhaseType type=GCPhase::PausePhaseType) {

    84     partitions->report_gc_phase_end(Ticks(ticks), type);

    85   }

    86 };

    87 

    88 TEST(TimePartitionPhasesIterator, one_pause) {

    89   TimePartitions time_partitions;

    90   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);

    91   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);

    92 

    93   TimePartitionPhasesIterator iter(&time_partitions);

    94 

    95   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 8));

    96 

    97   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 8, 2));

    98 

    99   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   100 }

   101 

   102 TEST(TimePartitionPhasesIterator, two_pauses) {

   103   TimePartitions time_partitions;

   104   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase1", 2);

   105   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 3);

   106   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase2", 4);

   107   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);

   108 

   109   TimePartitionPhasesIterator iter(&time_partitions);

   110 

   111   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase1", 2, 3));

   112   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase2", 4, 6));

   113 

   114   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 3, 0, 2, 0));

   115 

   116   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   117 }

   118 

   119 TEST(TimePartitionPhasesIterator, one_sub_pause_phase) {

   120   TimePartitions time_partitions;

   121   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);

   122   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase", 3);

   123   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 4);

   124   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 5);

   125 

   126   TimePartitionPhasesIterator iter(&time_partitions);

   127 

   128   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 5));

   129   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase", 3, 4));

   130 

   131   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 3, 0));

   132 

   133   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   134 }

   135 

   136 TEST(TimePartitionPhasesIterator, max_nested_pause_phases) {

   137   TimePartitions time_partitions;

   138   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);

   139   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);

   140   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 4);

   141   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 5);

   142   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);

   143   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 7);

   144   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);

   145   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 9);

   146 

   147   TimePartitionPhasesIterator iter(&time_partitions);

   148 

   149   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 9));

   150   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 8));

   151   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase2", 4, 7));

   152   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 3, "SubPhase3", 5, 6));

   153 

   154   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 7, 0));

   155 

   156   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   157 }

   158 

   159 TEST(TimePartitionPhasesIterator, many_sub_pause_phases) {

   160   TimePartitions time_partitions;

   161   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);

   162 

   163   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);

   164   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 4);

   165   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 5);

   166   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);

   167   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 7);

   168   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);

   169   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase4", 9);

   170   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 10);

   171 

   172   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 11);

   173 

   174   TimePartitionPhasesIterator iter(&time_partitions);

   175 

   176   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 11));

   177   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 4));

   178   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase2", 5, 6));

   179   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase3", 7, 8));

   180   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase4", 9, 10));

   181 

   182   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 9, 0));

   183 

   184   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   185 }

   186 

   187 TEST(TimePartitionPhasesIterator, many_sub_pause_phases2) {

   188   TimePartitions time_partitions;

   189   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);

   190 

   191   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);

   192   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase11", 4);

   193   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 5);

   194   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase12", 6);

   195   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 7);

   196   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);

   197 

   198   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 9);

   199   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase21", 10);

   200   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 11);

   201   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase22", 12);

   202   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 13);

   203   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 14);

   204 

   205   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 15);

   206   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 16);

   207 

   208   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 17);

   209 

   210   TimePartitionPhasesIterator iter(&time_partitions);

   211 

   212   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 17));

   213   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 8));

   214   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase11", 4, 5));

   215   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase12", 6, 7));

   216   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase2", 9, 14));

   217   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase21", 10, 11));

   218   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase22", 12, 13));

   219   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase3", 15, 16));

   220 

   221   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 15, 0));

   222 

   223   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   224 }

   225 

   226 TEST(TimePartitionPhasesIterator, one_concurrent) {

   227   TimePartitions time_partitions;

   228   TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "ConcurrentPhase", 2, GCPhase::ConcurrentPhaseType);

   229   TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8, GCPhase::ConcurrentPhaseType);

   230 

   231   TimePartitionPhasesIterator iter(&time_partitions);

   232 

   233   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "ConcurrentPhase", 2, 8));

   234   // ConcurrentPhaseType should not affect to both 'sum_of_pauses()' and 'longest_pause()'.

   235   EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Tickspan()));

   236 

   237   EXPECT_FALSE(iter.has_next()) << "Too many elements";

   238 }