Quelle  gcPolicyCounters.cpp

/*
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 * 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
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
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#include "precompiled.hpp"
#include "gc/shared/gcPolicyCounters.hpp"
#include "gc/shared/gc_globals.hpp"
#include "memory/resourceArea.hpp"

GCPolicyCounters::GCPolicyCounters(const char* name, int collectors,
                                   int generations) {

  if (UsePerfData) {
    EXCEPTION_MARK;
    ResourceMark rm;

    _name_space = "policy";

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

    cname = PerfDataManager::counter_name(_name_space, "collectors");
    PerfDataManager::create_constant(SUN_GC, cname,  PerfData::U_None,
                                     collectors, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "generations");
    PerfDataManager::create_constant(SUN_GC, cname,  PerfData::U_None,
                                     generations, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "maxTenuringThreshold");
    PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_None,
                                     MaxTenuringThreshold, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "tenuringThreshold");
    _tenuring_threshold =
        PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_None,
                                         MaxTenuringThreshold, CHECK);

    cname = PerfDataManager::counter_name(_name_space, "desiredSurvivorSize");
    _desired_survivor_size =
        PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
                                         CHECK);

    cname = PerfDataManager::counter_name(_name_space, "gcTimeLimitExceeded");
    _gc_overhead_limit_exceeded_counter =
        PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events,
                                         CHECK);
  }
}