/*
* Copyright ( c ) 2015 , 2021 , 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
* questions .
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*/
#include "precompiled.hpp"
#include "gc/shared/gcTraceTime.inline.hpp"
#include "jvm.h"
#include "logTestFixture.hpp"
#include "logTestUtils.inline.hpp"
#include "logging/log.hpp"
#include "runtime/interfaceSupport.inline.hpp"
#include "unittest.hpp"
class GCTraceTimeTest : public LogTestFixture {
};
TEST_VM_F(GCTraceTimeTest, full) {
set_log_config(TestLogFileName, "gc=debug,gc+start=debug" );
LogTarget(Debug, gc) gc_debug;
LogTarget(Debug, gc, start) gc_start_debug;
EXPECT_TRUE(gc_debug.is_enabled());
EXPECT_TRUE(gc_start_debug.is_enabled());
{
ThreadInVMfromNative tvn(JavaThread::current());
MutexLocker lock(Heap_lock); // Needed to read heap usage
GCTraceTime(Debug, gc) timer("Test GC" , NULL, GCCause::_allocation_failure, true );
}
const char * expected[] = {
"[gc,start" , "] Test GC (Allocation Failure)" ,
"[gc" , "] Test GC (Allocation Failure) " , "M) " , "ms" ,
NULL
};
EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
}
TEST_VM_F(GCTraceTimeTest, full_multitag) {
set_log_config(TestLogFileName, "gc+ref=debug,gc+ref+start=debug" );
LogTarget(Debug, gc, ref) gc_debug;
LogTarget(Debug, gc, ref, start) gc_start_debug;
EXPECT_TRUE(gc_debug.is_enabled());
EXPECT_TRUE(gc_start_debug.is_enabled());
{
ThreadInVMfromNative tvn(JavaThread::current());
MutexLocker lock(Heap_lock); // Needed to read heap usage
GCTraceTime(Debug, gc, ref) timer("Test GC" , NULL, GCCause::_allocation_failure, true );
}
const char * expected[] = {
"[gc,ref,start" , "] Test GC (Allocation Failure)" ,
"[gc,ref" , "] Test GC (Allocation Failure) " , "M) " , "ms" ,
NULL
};
EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
}
TEST_VM_F(GCTraceTimeTest, no_heap) {
set_log_config(TestLogFileName, "gc=debug,gc+start=debug" );
LogTarget(Debug, gc) gc_debug;
LogTarget(Debug, gc, start) gc_start_debug;
EXPECT_TRUE(gc_debug.is_enabled());
EXPECT_TRUE(gc_start_debug.is_enabled());
{
GCTraceTime(Debug, gc) timer("Test GC" , NULL, GCCause::_allocation_failure, false );
}
const char * expected[] = {
// [2.975s][debug][gc,start] Test GC (Allocation Failure)
"[gc,start" , "] Test GC (Allocation Failure)" ,
// [2.975s][debug][gc ] Test GC (Allocation Failure) 0.026ms
"[gc" , "] Test GC (Allocation Failure) " , "ms" ,
NULL
};
EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
const char * not_expected[] = {
// [2.975s][debug][gc ] Test GC 59M->59M(502M) 0.026ms
"[gc" , "] Test GC " , "M) " , "ms" ,
};
EXPECT_FALSE(file_contains_substrings_in_order(TestLogFileName, not_expected));
}
TEST_VM_F(GCTraceTimeTest, no_cause) {
set_log_config(TestLogFileName, "gc=debug,gc+start=debug" );
LogTarget(Debug, gc) gc_debug;
LogTarget(Debug, gc, start) gc_start_debug;
EXPECT_TRUE(gc_debug.is_enabled());
EXPECT_TRUE(gc_start_debug.is_enabled());
{
ThreadInVMfromNative tvn(JavaThread::current());
MutexLocker lock(Heap_lock); // Needed to read heap usage
GCTraceTime(Debug, gc) timer("Test GC" , NULL, GCCause::_no_gc, true );
}
const char * expected[] = {
// [2.975s][debug][gc,start] Test GC
"[gc,start" , "] Test GC" ,
// [2.975s][debug][gc ] Test GC 59M->59M(502M) 0.026ms
"[gc" , "] Test GC " , "M) " , "ms" ,
NULL
};
EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
}
TEST_VM_F(GCTraceTimeTest, no_heap_no_cause) {
set_log_config(TestLogFileName, "gc=debug,gc+start=debug" );
LogTarget(Debug, gc) gc_debug;
LogTarget(Debug, gc, start) gc_start_debug;
EXPECT_TRUE(gc_debug.is_enabled());
EXPECT_TRUE(gc_start_debug.is_enabled());
{
GCTraceTime(Debug, gc) timer("Test GC" , NULL, GCCause::_no_gc, false );
}
const char * expected[] = {
// [2.975s][debug][gc,start] Test GC
"[gc,start" , "] Test GC" ,
// [2.975s][debug][gc ] Test GC 0.026ms
"[gc" , "] Test GC " , "ms" ,
NULL
};
EXPECT_TRUE(file_contains_substrings_in_order(TestLogFileName, expected));
const char * not_expected[] = {
// [2.975s][debug][gc ] Test GC 59M->59M(502M) 0.026ms
"[gc" , "] Test GC " , "M) " , "ms" ,
};
EXPECT_FALSE(file_contains_substrings_in_order(TestLogFileName, not_expected));
}
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(vorverarbeitet am 2026-06-10)
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