| /* |
| * Copyright (C) 2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "PerActivityStateCPUUsageSampler.h" |
| |
| #include "Logging.h" |
| #include "WebProcessPool.h" |
| #include "WebProcessProxy.h" |
| #include <WebCore/DiagnosticLoggingKeys.h> |
| #include <wtf/DecimalNumber.h> |
| |
| namespace WebKit { |
| |
| using namespace WebCore; |
| |
| static const Seconds loggingInterval { 60_min }; |
| |
| PerActivityStateCPUUsageSampler::PerActivityStateCPUUsageSampler(WebProcessPool& processPool) |
| : m_processPool(processPool) |
| , m_loggingTimer(RunLoop::main(), this, &PerActivityStateCPUUsageSampler::loggingTimerFired) |
| { |
| m_lastCPUTime = MonotonicTime::now(); |
| m_loggingTimer.startRepeating(loggingInterval); |
| } |
| |
| PerActivityStateCPUUsageSampler::~PerActivityStateCPUUsageSampler() |
| { |
| } |
| |
| void PerActivityStateCPUUsageSampler::reportWebContentCPUTime(Seconds cpuTime, ActivityStateForCPUSampling activityState) |
| { |
| auto result = m_cpuTimeInActivityState.add(activityState, cpuTime); |
| if (!result.isNewEntry) |
| result.iterator->value += cpuTime; |
| } |
| |
| static inline String loggingKeyForActivityState(ActivityStateForCPUSampling state) |
| { |
| switch (state) { |
| case ActivityStateForCPUSampling::NonVisible: |
| return DiagnosticLoggingKeys::nonVisibleStateKey(); |
| case ActivityStateForCPUSampling::VisibleNonActive: |
| return DiagnosticLoggingKeys::visibleNonActiveStateKey(); |
| case ActivityStateForCPUSampling::VisibleAndActive: |
| return DiagnosticLoggingKeys::visibleAndActiveStateKey(); |
| } |
| } |
| |
| void PerActivityStateCPUUsageSampler::loggingTimerFired() |
| { |
| auto* page = pageForLogging(); |
| if (!page) { |
| m_cpuTimeInActivityState.clear(); |
| return; |
| } |
| |
| MonotonicTime currentCPUTime = MonotonicTime::now(); |
| Seconds cpuTimeDelta = currentCPUTime - m_lastCPUTime; |
| |
| for (auto& pair : m_cpuTimeInActivityState) { |
| double cpuUsage = pair.value.value() * 100. / cpuTimeDelta.value(); |
| String activityStateKey = loggingKeyForActivityState(pair.key); |
| page->logDiagnosticMessageWithValue(DiagnosticLoggingKeys::cpuUsageKey(), activityStateKey, cpuUsage, 2, ShouldSample::No); |
| RELEASE_LOG(PerformanceLogging, "WebContent processes used %.1f%% CPU in %s state", cpuUsage, activityStateKey.utf8().data()); |
| } |
| |
| m_cpuTimeInActivityState.clear(); |
| m_lastCPUTime = currentCPUTime; |
| } |
| |
| WebPageProxy* PerActivityStateCPUUsageSampler::pageForLogging() const |
| { |
| for (auto& webProcess : m_processPool.processes()) { |
| if (!webProcess->pageCount()) |
| continue; |
| return *webProcess->pages().begin(); |
| } |
| return nullptr; |
| } |
| |
| } // namespace WebKit |