1 /*
   2  * Copyright (c) 2015, 2016, 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/gcTraceTime.inline.hpp"
  26 #include "logTestFixture.hpp"
  27 #include "logTestUtils.inline.hpp"
  28 #include "logging/log.hpp"
  29 #include "runtime/interfaceSupport.inline.hpp"
  30 #include "unittest.hpp"
  31 
  32 class GCTraceTimeTest : public LogTestFixture {
  33 };
  34 
  35 TEST_VM_F(GCTraceTimeTest, full) {
  36   set_log_config(TestLogFileName, "gc=debug,gc+start=debug");
  37 
  38   LogTarget(Debug, gc) gc_debug;
  39   LogTarget(Debug, gc, start) gc_start_debug;
  40 
  41   EXPECT_TRUE(gc_debug.is_enabled());
  42   EXPECT_TRUE(gc_start_debug.is_enabled());
  43 
  44   {
  45     ThreadInVMfromNative tvn(JavaThread::current());
  46     MutexLocker lock(Heap_lock); // Needed to read heap usage
  47     GCTraceTime(Debug, gc) timer("Test GC", NULL, GCCause::_allocation_failure, true);
  48   }
  49 
  50   const char* expected[] = {
  51     "[gc,start", "] Test GC (Allocation Failure)",
  52     "[gc", "] Test GC (Allocation Failure) ", "M) ", "ms",
  53     NULL
  54   };
  55   EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
  56 }
  57 
  58 TEST_VM_F(GCTraceTimeTest, full_multitag) {
  59   set_log_config(TestLogFileName, "gc+ref=debug,gc+ref+start=debug");
  60 
  61   LogTarget(Debug, gc, ref) gc_debug;
  62   LogTarget(Debug, gc, ref, start) gc_start_debug;
  63 
  64   EXPECT_TRUE(gc_debug.is_enabled());
  65   EXPECT_TRUE(gc_start_debug.is_enabled());
  66 
  67   {
  68     ThreadInVMfromNative tvn(JavaThread::current());
  69     MutexLocker lock(Heap_lock); // Needed to read heap usage
  70     GCTraceTime(Debug, gc, ref) timer("Test GC", NULL, GCCause::_allocation_failure, true);
  71   }
  72 
  73   const char* expected[] = {
  74     "[gc,ref,start", "] Test GC (Allocation Failure)",
  75     "[gc,ref", "] Test GC (Allocation Failure) ", "M) ", "ms",
  76     NULL
  77   };
  78   EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
  79 }
  80 
  81 TEST_VM_F(GCTraceTimeTest, no_heap) {
  82   set_log_config(TestLogFileName, "gc=debug,gc+start=debug");
  83 
  84   LogTarget(Debug, gc) gc_debug;
  85   LogTarget(Debug, gc, start) gc_start_debug;
  86 
  87   EXPECT_TRUE(gc_debug.is_enabled());
  88   EXPECT_TRUE(gc_start_debug.is_enabled());
  89 
  90   {
  91     GCTraceTime(Debug, gc) timer("Test GC", NULL, GCCause::_allocation_failure, false);
  92   }
  93 
  94   const char* expected[] = {
  95     // [2.975s][debug][gc,start] Test GC (Allocation Failure)
  96     "[gc,start", "] Test GC (Allocation Failure)",
  97     // [2.975s][debug][gc      ] Test GC (Allocation Failure) 0.026ms
  98     "[gc", "] Test GC (Allocation Failure) ", "ms",
  99     NULL
 100   };
 101   EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
 102 
 103   const char* not_expected[] = {
 104       // [2.975s][debug][gc      ] Test GC 59M->59M(502M) 0.026ms
 105       "[gc", "] Test GC ", "M) ", "ms",
 106   };
 107   EXPECT_FALSE(file_contains_substrings_in_order(TestLogFileName, not_expected));
 108 }
 109 
 110 TEST_VM_F(GCTraceTimeTest, no_cause) {
 111   set_log_config(TestLogFileName, "gc=debug,gc+start=debug");
 112 
 113   LogTarget(Debug, gc) gc_debug;
 114   LogTarget(Debug, gc, start) gc_start_debug;
 115 
 116   EXPECT_TRUE(gc_debug.is_enabled());
 117   EXPECT_TRUE(gc_start_debug.is_enabled());
 118 
 119   {
 120     ThreadInVMfromNative tvn(JavaThread::current());
 121     MutexLocker lock(Heap_lock); // Needed to read heap usage
 122     GCTraceTime(Debug, gc) timer("Test GC", NULL, GCCause::_no_gc, true);
 123   }
 124 
 125   const char* expected[] = {
 126     // [2.975s][debug][gc,start] Test GC
 127     "[gc,start", "] Test GC",
 128     // [2.975s][debug][gc      ] Test GC 59M->59M(502M) 0.026ms
 129     "[gc", "] Test GC ", "M) ", "ms",
 130     NULL
 131   };
 132   EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
 133 }
 134 
 135 TEST_VM_F(GCTraceTimeTest, no_heap_no_cause) {
 136   set_log_config(TestLogFileName, "gc=debug,gc+start=debug");
 137 
 138   LogTarget(Debug, gc) gc_debug;
 139   LogTarget(Debug, gc, start) gc_start_debug;
 140 
 141   EXPECT_TRUE(gc_debug.is_enabled());
 142   EXPECT_TRUE(gc_start_debug.is_enabled());
 143 
 144   {
 145     GCTraceTime(Debug, gc) timer("Test GC", NULL, GCCause::_no_gc, false);
 146   }
 147 
 148   const char* expected[] = {
 149     // [2.975s][debug][gc,start] Test GC
 150     "[gc,start", "] Test GC",
 151     // [2.975s][debug][gc      ] Test GC 0.026ms
 152     "[gc", "] Test GC ", "ms",
 153     NULL
 154   };
 155   EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
 156 
 157   const char* not_expected[] = {
 158       // [2.975s][debug][gc      ] Test GC 59M->59M(502M) 0.026ms
 159       "[gc", "] Test GC ", "M) ", "ms",
 160   };
 161   EXPECT_FALSE(file_contains_substrings_in_order(TestLogFileName, not_expected));
 162 }