jdk8-mips64-public/hotspot: src/share/vm/c1/c1

8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets. Changes were also reviewed by Per Liden <per.liden@oracle.com>.
Reviewed-by: tschatzl, stefank, twisti

     1 /*

     2  * Copyright (c) 1999, 2010, 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

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    23  */

    25 #ifndef SHARE_VM_C1_C1_COMPILER_HPP

    26 #define SHARE_VM_C1_C1_COMPILER_HPP

    28 #include "compiler/abstractCompiler.hpp"

    30 // There is one instance of the Compiler per CompilerThread.

    32 class Compiler: public AbstractCompiler {

    34  private:

    36  // Tracks whether runtime has been initialized

    37  static volatile int _runtimes;

    39  public:

    40   // Creation

    41   Compiler();

    42   ~Compiler();

    44   // Name of this compiler

    45   virtual const char* name()                     { return "C1"; }

    47   virtual bool is_c1()                           { return true; };

    49   BufferBlob* get_buffer_blob(ciEnv* env);

    51   // Missing feature tests

    52   virtual bool supports_native()                 { return true; }

    53   virtual bool supports_osr   ()                 { return true; }

    55   // Customization

    56   virtual bool needs_adapters         ()         { return false; }

    57   virtual bool needs_stubs            ()         { return false; }

    59   // Initialization

    60   virtual void initialize();

    61   static  void initialize_all();

    63   // Compilation entry point for methods

    64   virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci);

    66   // Print compilation timers and statistics

    67   virtual void print_timers();

    68 };

    70 #endif // SHARE_VM_C1_C1_COMPILER_HPP

src/share/vm/c1/c1_Compiler.hpp@01522ca68fc7

src/share/vm/c1/c1_Compiler.hpp

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

src/share/vm/c1/c1_Compiler.hpp@01522ca68fc7

src/share/vm/c1/c1_Compiler.hpp