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123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
/*
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* Copyright (c) 2023, 2025, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2023 Google LLC. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "runtime/atomicAccess.hpp"
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#include "runtime/cpuTimeCounters.hpp"
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const char* CPUTimeGroups::to_string(CPUTimeType val) {
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switch (val) {
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case CPUTimeType::gc_total:
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return "total_gc_cpu_time";
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case CPUTimeType::gc_parallel_workers:
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return "gc_parallel_workers";
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case CPUTimeType::gc_conc_mark:
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return "gc_conc_mark";
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case CPUTimeType::gc_conc_refine:
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return "gc_conc_refine";
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case CPUTimeType::gc_conc_refine_control:
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return "gc_conc_refine_control";
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case CPUTimeType::gc_service:
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return "gc_service";
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case CPUTimeType::vm:
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return "vm";
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case CPUTimeType::conc_dedup:
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return "conc_dedup";
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default:
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ShouldNotReachHere();
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return "";
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};
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}
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bool CPUTimeGroups::is_gc_counter(CPUTimeType val) {
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switch (val) {
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case CPUTimeType::gc_parallel_workers:
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case CPUTimeType::gc_conc_mark:
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case CPUTimeType::gc_conc_refine:
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case CPUTimeType::gc_conc_refine_control:
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case CPUTimeType::gc_service:
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return true;
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default:
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return false;
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}
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ShouldNotReachHere();
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}
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CPUTimeCounters* CPUTimeCounters::_instance = nullptr;
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CPUTimeCounters::CPUTimeCounters() :
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_cpu_time_counters(),
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_gc_total_cpu_time_diff(0) {
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}
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void CPUTimeCounters::inc_gc_total_cpu_time(jlong diff) {
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CPUTimeCounters* instance = CPUTimeCounters::get_instance();
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AtomicAccess::add(&(instance->_gc_total_cpu_time_diff), diff);
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}
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void CPUTimeCounters::publish_gc_total_cpu_time() {
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CPUTimeCounters* instance = CPUTimeCounters::get_instance();
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// Atomically fetch the current _gc_total_cpu_time_diff and reset it to zero.
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jlong new_value = 0;
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jlong fetched_value = AtomicAccess::xchg(&(instance->_gc_total_cpu_time_diff), new_value);
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get_counter(CPUTimeGroups::CPUTimeType::gc_total)->inc(fetched_value);
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}
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void CPUTimeCounters::create_counter(CounterNS ns, CPUTimeGroups::CPUTimeType name) {
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if (UsePerfData && os::is_thread_cpu_time_supported()) {
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EXCEPTION_MARK;
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CPUTimeCounters* instance = CPUTimeCounters::get_instance();
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instance->_cpu_time_counters[static_cast<int>(name)] =
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PerfDataManager::create_counter(ns, CPUTimeGroups::to_string(name),
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PerfData::U_Ticks, CHECK);
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}
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}
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void CPUTimeCounters::create_counter(CPUTimeGroups::CPUTimeType group) {
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CPUTimeCounters::create_counter(SUN_THREADS_CPUTIME, group);
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}
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PerfCounter* CPUTimeCounters::get_counter(CPUTimeGroups::CPUTimeType name) {
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return CPUTimeCounters::get_instance()->_cpu_time_counters[static_cast<int>(name)];
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}
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void CPUTimeCounters::update_counter(CPUTimeGroups::CPUTimeType name, jlong total) {
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CPUTimeCounters* instance = CPUTimeCounters::get_instance();
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PerfCounter* counter = instance->get_counter(name);
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jlong prev_value = counter->get_value();
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jlong net_cpu_time = total - prev_value;
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counter->inc(net_cpu_time);
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if (CPUTimeGroups::is_gc_counter(name)) {
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instance->inc_gc_total_cpu_time(net_cpu_time);
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}
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}
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ThreadTotalCPUTimeClosure::~ThreadTotalCPUTimeClosure() {
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CPUTimeCounters::update_counter(_name, _total);
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}
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void ThreadTotalCPUTimeClosure::do_thread(Thread* thread) {
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_total += os::thread_cpu_time(thread);
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}
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