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-rw-r--r--tools/performance/PerfStats.cpp317
1 files changed, 317 insertions, 0 deletions
diff --git a/tools/performance/PerfStats.cpp b/tools/performance/PerfStats.cpp
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+++ b/tools/performance/PerfStats.cpp
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PerfStats.h"
+#include "nsAppRunner.h"
+#include "mozilla/dom/BrowserParent.h"
+#include "mozilla/dom/CanonicalBrowsingContext.h"
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/dom/ContentProcessManager.h"
+#include "mozilla/dom/WindowGlobalParent.h"
+#include "mozilla/gfx/GPUChild.h"
+#include "mozilla/gfx/GPUProcessManager.h"
+#include "mozilla/JSONStringWriteFuncs.h"
+
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+
+namespace mozilla {
+
+#define METRIC_NAME(metric) #metric,
+static const char* const sMetricNames[] = {
+ FOR_EACH_PERFSTATS_METRIC(METRIC_NAME)
+#undef METRIC_NAME
+ "Invalid"};
+
+PerfStats::MetricMask PerfStats::sCollectionMask = 0;
+StaticMutex PerfStats::sMutex;
+StaticAutoPtr<PerfStats> PerfStats::sSingleton;
+
+void PerfStats::SetCollectionMask(MetricMask aMask) {
+ sCollectionMask = aMask;
+ GetSingleton()->ResetCollection();
+
+ if (!XRE_IsParentProcess()) {
+ return;
+ }
+
+ GPUProcessManager* gpuManager = GPUProcessManager::Get();
+ GPUChild* gpuChild = nullptr;
+
+ if (gpuManager) {
+ gpuChild = gpuManager->GetGPUChild();
+ if (gpuChild) {
+ gpuChild->SendUpdatePerfStatsCollectionMask(aMask);
+ }
+ }
+
+ nsTArray<ContentParent*> contentParents;
+ ContentParent::GetAll(contentParents);
+
+ for (ContentParent* parent : contentParents) {
+ Unused << parent->SendUpdatePerfStatsCollectionMask(aMask);
+ }
+}
+
+PerfStats::MetricMask PerfStats::GetCollectionMask() { return sCollectionMask; }
+
+PerfStats* PerfStats::GetSingleton() {
+ if (!sSingleton) {
+ sSingleton = new PerfStats;
+ }
+
+ return sSingleton.get();
+}
+
+void PerfStats::RecordMeasurementStartInternal(Metric aMetric) {
+ StaticMutexAutoLock lock(sMutex);
+
+ GetSingleton()->mRecordedStarts[static_cast<size_t>(aMetric)] =
+ TimeStamp::Now();
+}
+
+void PerfStats::RecordMeasurementEndInternal(Metric aMetric) {
+ StaticMutexAutoLock lock(sMutex);
+
+ MOZ_ASSERT(sSingleton);
+
+ sSingleton->mRecordedTimes[static_cast<size_t>(aMetric)] +=
+ (TimeStamp::Now() -
+ sSingleton->mRecordedStarts[static_cast<size_t>(aMetric)])
+ .ToMilliseconds();
+ sSingleton->mRecordedCounts[static_cast<size_t>(aMetric)]++;
+}
+
+void PerfStats::RecordMeasurementInternal(Metric aMetric,
+ TimeDuration aDuration) {
+ StaticMutexAutoLock lock(sMutex);
+
+ MOZ_ASSERT(sSingleton);
+
+ sSingleton->mRecordedTimes[static_cast<size_t>(aMetric)] +=
+ aDuration.ToMilliseconds();
+ sSingleton->mRecordedCounts[static_cast<size_t>(aMetric)]++;
+}
+
+void PerfStats::RecordMeasurementCounterInternal(Metric aMetric,
+ uint64_t aIncrementAmount) {
+ StaticMutexAutoLock lock(sMutex);
+
+ MOZ_ASSERT(sSingleton);
+
+ sSingleton->mRecordedTimes[static_cast<size_t>(aMetric)] +=
+ double(aIncrementAmount);
+ sSingleton->mRecordedCounts[static_cast<size_t>(aMetric)]++;
+}
+
+void AppendJSONStringAsProperty(nsCString& aDest, const char* aPropertyName,
+ const nsACString& aJSON) {
+ // We need to manually append into the string here, since JSONWriter has no
+ // way to allow us to write an existing JSON object into a property.
+ aDest.Append(",\n\"");
+ aDest.Append(aPropertyName);
+ aDest.Append("\": ");
+ aDest.Append(aJSON);
+}
+
+static void WriteContentParent(nsCString& aRawString, JSONWriter& aWriter,
+ const nsACString& aString,
+ ContentParent* aParent) {
+ aWriter.StringProperty("type", "content");
+ aWriter.IntProperty("id", aParent->ChildID());
+ const ManagedContainer<PBrowserParent>& browsers =
+ aParent->ManagedPBrowserParent();
+
+ aWriter.StartArrayProperty("urls");
+ for (const auto& key : browsers) {
+ // This only reports -current- URLs, not ones that may have been here in
+ // the past, this is unfortunate especially for processes which are dying
+ // and that have no more active URLs.
+ RefPtr<BrowserParent> parent = BrowserParent::GetFrom(key);
+
+ CanonicalBrowsingContext* ctx = parent->GetBrowsingContext();
+ if (!ctx) {
+ continue;
+ }
+
+ WindowGlobalParent* windowGlobal = ctx->GetCurrentWindowGlobal();
+ if (!windowGlobal) {
+ continue;
+ }
+
+ RefPtr<nsIURI> uri = windowGlobal->GetDocumentURI();
+ if (!uri) {
+ continue;
+ }
+
+ nsAutoCString url;
+ uri->GetSpec(url);
+
+ aWriter.StringElement(url);
+ }
+ aWriter.EndArray();
+ AppendJSONStringAsProperty(aRawString, "perfstats", aString);
+}
+
+struct PerfStatsCollector {
+ PerfStatsCollector() : writer(MakeUnique<JSONStringRefWriteFunc>(string)) {}
+
+ void AppendPerfStats(const nsCString& aString, ContentParent* aParent) {
+ writer.StartObjectElement();
+ WriteContentParent(string, writer, aString, aParent);
+ writer.EndObject();
+ }
+
+ void AppendPerfStats(const nsCString& aString, GPUChild* aChild) {
+ writer.StartObjectElement();
+ writer.StringProperty("type", "gpu");
+ writer.IntProperty("id", aChild->Id());
+ AppendJSONStringAsProperty(string, "perfstats", aString);
+ writer.EndObject();
+ }
+
+ ~PerfStatsCollector() {
+ writer.EndArray();
+ writer.End();
+ promise.Resolve(string, __func__);
+ }
+ nsCString string;
+ JSONWriter writer;
+ MozPromiseHolder<PerfStats::PerfStatsPromise> promise;
+};
+
+void PerfStats::ResetCollection() {
+ for (uint64_t i = 0; i < static_cast<uint64_t>(Metric::Max); i++) {
+ if (!(sCollectionMask & 1 << i)) {
+ continue;
+ }
+
+ mRecordedTimes[i] = 0;
+ mRecordedCounts[i] = 0;
+ }
+
+ mStoredPerfStats.Clear();
+}
+
+void PerfStats::StorePerfStatsInternal(dom::ContentParent* aParent,
+ const nsACString& aPerfStats) {
+ nsCString jsonString;
+ JSONStringRefWriteFunc jw(jsonString);
+ JSONWriter w(jw);
+
+ // To generate correct JSON here we don't call start and end. That causes
+ // this to use Single Line mode, sadly.
+ WriteContentParent(jsonString, w, aPerfStats, aParent);
+
+ mStoredPerfStats.AppendElement(jsonString);
+}
+
+auto PerfStats::CollectPerfStatsJSONInternal() -> RefPtr<PerfStatsPromise> {
+ if (!PerfStats::sCollectionMask) {
+ return PerfStatsPromise::CreateAndReject(false, __func__);
+ }
+
+ if (!XRE_IsParentProcess()) {
+ return PerfStatsPromise::CreateAndResolve(
+ CollectLocalPerfStatsJSONInternal(), __func__);
+ }
+
+ std::shared_ptr<PerfStatsCollector> collector =
+ std::make_shared<PerfStatsCollector>();
+
+ JSONWriter& w = collector->writer;
+
+ w.Start();
+ {
+ w.StartArrayProperty("processes");
+ {
+ w.StartObjectElement();
+ {
+ w.StringProperty("type", "parent");
+ AppendJSONStringAsProperty(collector->string, "perfstats",
+ CollectLocalPerfStatsJSONInternal());
+ }
+ w.EndObject();
+
+ // Append any processes that closed earlier.
+ for (nsCString& string : mStoredPerfStats) {
+ w.StartObjectElement();
+ // This trick makes indentation even more messed up than it already
+ // was. However it produces technically correct JSON.
+ collector->string.Append(string);
+ w.EndObject();
+ }
+ // We do not clear this, we only clear stored perfstats when the mask is
+ // reset.
+
+ GPUProcessManager* gpuManager = GPUProcessManager::Get();
+ GPUChild* gpuChild = nullptr;
+
+ if (gpuManager) {
+ gpuChild = gpuManager->GetGPUChild();
+ }
+ nsTArray<ContentParent*> contentParents;
+ ContentParent::GetAll(contentParents);
+
+ if (gpuChild) {
+ gpuChild->SendCollectPerfStatsJSON(
+ [collector, gpuChild](const nsCString& aString) {
+ collector->AppendPerfStats(aString, gpuChild);
+ },
+ // The only feasible errors here are if something goes wrong in the
+ // the bridge, we choose to ignore those.
+ [](mozilla::ipc::ResponseRejectReason) {});
+ }
+ for (ContentParent* parent : contentParents) {
+ RefPtr<ContentParent> parentRef = parent;
+ parent->SendCollectPerfStatsJSON(
+ [collector, parentRef](const nsCString& aString) {
+ collector->AppendPerfStats(aString, parentRef.get());
+ },
+ // The only feasible errors here are if something goes wrong in the
+ // the bridge, we choose to ignore those.
+ [](mozilla::ipc::ResponseRejectReason) {});
+ }
+ }
+ }
+
+ return collector->promise.Ensure(__func__);
+}
+
+nsCString PerfStats::CollectLocalPerfStatsJSONInternal() {
+ StaticMutexAutoLock lock(PerfStats::sMutex);
+
+ nsCString jsonString;
+
+ JSONStringRefWriteFunc jw(jsonString);
+ JSONWriter w(jw);
+ w.Start();
+ {
+ w.StartArrayProperty("metrics");
+ {
+ for (uint64_t i = 0; i < static_cast<uint64_t>(Metric::Max); i++) {
+ if (!(sCollectionMask & (1 << i))) {
+ continue;
+ }
+
+ w.StartObjectElement();
+ {
+ w.IntProperty("id", i);
+ w.StringProperty("metric", MakeStringSpan(sMetricNames[i]));
+ w.DoubleProperty("time", mRecordedTimes[i]);
+ w.IntProperty("count", mRecordedCounts[i]);
+ }
+ w.EndObject();
+ }
+ }
+ w.EndArray();
+ }
+ w.End();
+
+ return jsonString;
+}
+
+} // namespace mozilla
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