view src/hotspot/share/gc/shared/collectorCounters.cpp @ 48073:5caa1d5f74c1

8186571: Implementation: JEP 307: Parallel Full GC for G1 Summary: Improve G1 worst-case latencies by making the full GC parallel. Reviewed-by: tschatzl, sangheki, ehelin
author sjohanss
date Tue, 14 Nov 2017 11:33:23 +0100
parents fec48bf5a827
children d8ec0640616c
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/*
 * Copyright (c) 2002, 2015, 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.
 *
 */

#include "precompiled.hpp"
#include "gc/shared/collectorCounters.hpp"
#include "memory/resourceArea.hpp"

CollectorCounters::CollectorCounters(const char* name, int ordinal) {

  if (UsePerfData) {
    EXCEPTION_MARK;
    ResourceMark rm;

    const char* cns = PerfDataManager::name_space("collector", ordinal);

    _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
    strcpy(_name_space, cns);

    char* cname = PerfDataManager::counter_name(_name_space, "name");
    PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "invocations");
    _invocations = PerfDataManager::create_counter(SUN_GC, cname,
                                                   PerfData::U_Events, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "time");
    _time = PerfDataManager::create_counter(SUN_GC, cname, PerfData::U_Ticks,
                                            CHECK);

    cname = PerfDataManager::counter_name(_name_space, "lastEntryTime");
    _last_entry_time = PerfDataManager::create_variable(SUN_GC, cname,
                                                        PerfData::U_Ticks,
                                                        CHECK);

    cname = PerfDataManager::counter_name(_name_space, "lastExitTime");
    _last_exit_time = PerfDataManager::create_variable(SUN_GC, cname,
                                                       PerfData::U_Ticks,
                                                       CHECK);
  }
}