jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcTraceTime.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_GCTRACETIME_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACETIME_HPP

    28 #include "prims/jni_md.h"

    30 class GCTimer;

    32 class GCTraceTime {

    33   const char* _title;

    34   bool _doit;

    35   bool _print_cr;

    36   GCTimer* _timer;

    37   jlong _start_counter;

    39  public:

    40   GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer);

    41   ~GCTraceTime();

    42 };

    44 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACETIME_HPP

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

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

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