jdk8-mips64-public/hotspot: src/os/linux/vm/decoder

8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary.
Reviewed-by: johnc, jwilhelm

     1 /*

     2  * Copyright (c) 1997, 2012, 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 #include "prims/jvm.h"

    26 #include "utilities/decoder_elf.hpp"

    28 #include <cxxabi.h>

    30 bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) {

    31   int   status;

    32   char* result;

    33   size_t size = (size_t)buflen;

    35   // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small,

    36   // __cxa_demangle will call system "realloc" for additional memory, which

    37   // may use different malloc/realloc mechanism that allocates 'buf'.

    38   if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) {

    39     jio_snprintf(buf, buflen, "%s", result);

    40       // call c library's free

    41       ::free(result);

    42       return true;

    43   }

    44   return false;

    45 }

src/os/linux/vm/decoder_linux.cpp@e72f7eecc96d

src/os/linux/vm/decoder_linux.cpp

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

src/os/linux/vm/decoder_linux.cpp@e72f7eecc96d

src/os/linux/vm/decoder_linux.cpp