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104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Tracing.h"
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#include <inttypes.h>
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#include <cstdio>
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#include "AsyncLogger.h"
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#include "mozilla/TimeStamp.h"
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using namespace mozilla;
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uint64_t
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AutoTracer::NowInUs()
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{
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static TimeStamp base = TimeStamp::Now();
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return (TimeStamp::Now() - base).ToMicroseconds();
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}
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void
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AutoTracer::PrintEvent(const char* aName,
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const char* aCategory,
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const char* aComment,
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TracingPhase aPhase,
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uint64_t aTime,
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uint64_t aPID,
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uint64_t aThread)
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{
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mLogger.Log("{\"name\": \"%s\", \"cat\": \"%s\", \"ph\": \"%c\","
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"\"ts\": %" PRIu64 ", \"pid\": %" PRIu64 ", \"tid\":"
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" %" PRIu64 ", \"args\": { \"comment\": \"%s\"}},",
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aName, aCategory, TRACING_PHASE_STRINGS[static_cast<int>(aPhase)],
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aTime, aPID, aThread, aComment);
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}
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void
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AutoTracer::PrintBudget(const char* aName,
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const char* aCategory,
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const char* aComment,
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uint64_t aDuration,
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uint64_t aPID,
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uint64_t aThread,
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uint64_t aFrames)
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{
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mLogger.Log("{\"name\": \"%s\", \"cat\": \"%s\", \"ph\": \"X\","
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"\"ts\": %" PRIu64 ", \"dur\": %" PRIu64 ", \"pid\": %" PRIu64 ","
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"\"tid\": %" PRIu64 ", \"args\": { \"comment\": %" PRIu64 "}},",
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aName, aCategory, NowInUs(), aDuration, aPID, aThread, aFrames);
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}
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AutoTracer::AutoTracer(AsyncLogger& aLogger,
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const char* aLocation,
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uint64_t aPID,
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uint64_t aTID,
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EventType aEventType,
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uint64_t aFrames,
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uint64_t aSampleRate)
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: mLogger(aLogger)
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, mLocation(aLocation)
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, mComment(nullptr)
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, mEventType(aEventType)
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, mPID(aPID)
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, mTID(aTID)
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{
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MOZ_ASSERT(aEventType == EventType::BUDGET);
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if (aLogger.Enabled()) {
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float durationUS = (static_cast<float>(aFrames) / aSampleRate) * 1e6;
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PrintBudget(aLocation, "perf", mComment, durationUS, mPID, mTID, aFrames);
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}
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}
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AutoTracer::AutoTracer(AsyncLogger& aLogger,
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const char* aLocation,
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uint64_t aPID,
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uint64_t aTID,
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EventType aEventType,
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const char* aComment)
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: mLogger(aLogger)
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, mLocation(aLocation)
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, mComment(aComment)
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, mEventType(aEventType)
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, mPID(aPID)
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, mTID(aTID)
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{
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MOZ_ASSERT(aEventType == EventType::DURATION);
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if (aLogger.Enabled()) {
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PrintEvent(aLocation, "perf", mComment, TracingPhase::BEGIN, NowInUs(), aPID, aTID);
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}
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}
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AutoTracer::~AutoTracer()
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{
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if (mEventType == EventType::DURATION) {
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if (mLogger.Enabled()) {
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PrintEvent(mLocation, "perf", mComment, TracingPhase::END, NowInUs(), mPID, mTID);
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}
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}
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}
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