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/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <unordered_map>
#undef LOG_TAG
#define LOG_TAG "TimeStats"
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include <android-base/stringprintf.h>
#include <log/log.h>
#include <timestatsatomsproto/TimeStatsAtomsProtoHeader.h>
#include <utils/String8.h>
#include <utils/Timers.h>
#include <utils/Trace.h>
#include <algorithm>
#include <chrono>
#include "TimeStats.h"
#include "timestatsproto/TimeStatsHelper.h"
namespace android {
namespace impl {
namespace {
FrameTimingHistogram histogramToProto(const std::unordered_map<int32_t, int32_t>& histogram,
size_t maxPulledHistogramBuckets) {
auto buckets = std::vector<std::pair<int32_t, int32_t>>(histogram.begin(), histogram.end());
std::sort(buckets.begin(), buckets.end(),
[](std::pair<int32_t, int32_t>& left, std::pair<int32_t, int32_t>& right) {
return left.second > right.second;
});
FrameTimingHistogram histogramProto;
int histogramSize = 0;
for (const auto& bucket : buckets) {
if (++histogramSize > maxPulledHistogramBuckets) {
break;
}
histogramProto.add_time_millis_buckets((int32_t)bucket.first);
histogramProto.add_frame_counts((int64_t)bucket.second);
}
return histogramProto;
}
SurfaceflingerStatsLayerInfo_GameMode gameModeToProto(int32_t gameMode) {
switch (gameMode) {
case TimeStatsHelper::GameModeUnsupported:
return SurfaceflingerStatsLayerInfo::GAME_MODE_UNSUPPORTED;
case TimeStatsHelper::GameModeStandard:
return SurfaceflingerStatsLayerInfo::GAME_MODE_STANDARD;
case TimeStatsHelper::GameModePerformance:
return SurfaceflingerStatsLayerInfo::GAME_MODE_PERFORMANCE;
case TimeStatsHelper::GameModeBattery:
return SurfaceflingerStatsLayerInfo::GAME_MODE_BATTERY;
default:
return SurfaceflingerStatsLayerInfo::GAME_MODE_UNSPECIFIED;
}
}
SurfaceflingerStatsLayerInfo_SetFrameRateVote frameRateVoteToProto(
const TimeStats::SetFrameRateVote& setFrameRateVote) {
using FrameRateCompatibilityEnum =
SurfaceflingerStatsLayerInfo::SetFrameRateVote::FrameRateCompatibility;
using SeamlessnessEnum = SurfaceflingerStatsLayerInfo::SetFrameRateVote::Seamlessness;
SurfaceflingerStatsLayerInfo_SetFrameRateVote proto;
proto.set_frame_rate(setFrameRateVote.frameRate);
proto.set_frame_rate_compatibility(
static_cast<FrameRateCompatibilityEnum>(setFrameRateVote.frameRateCompatibility));
proto.set_seamlessness(static_cast<SeamlessnessEnum>(setFrameRateVote.seamlessness));
return proto;
}
} // namespace
bool TimeStats::populateGlobalAtom(std::string* pulledData) {
std::lock_guard<std::mutex> lock(mMutex);
if (mTimeStats.statsStartLegacy == 0) {
return false;
}
flushPowerTimeLocked();
SurfaceflingerStatsGlobalInfoWrapper atomList;
for (const auto& globalSlice : mTimeStats.stats) {
SurfaceflingerStatsGlobalInfo* atom = atomList.add_atom();
atom->set_total_frames(mTimeStats.totalFramesLegacy);
atom->set_missed_frames(mTimeStats.missedFramesLegacy);
atom->set_client_composition_frames(mTimeStats.clientCompositionFramesLegacy);
atom->set_display_on_millis(mTimeStats.displayOnTimeLegacy);
atom->set_animation_millis(mTimeStats.presentToPresentLegacy.totalTime());
atom->set_event_connection_count(mTimeStats.displayEventConnectionsCountLegacy);
*atom->mutable_frame_duration() =
histogramToProto(mTimeStats.frameDurationLegacy.hist, mMaxPulledHistogramBuckets);
*atom->mutable_render_engine_timing() =
histogramToProto(mTimeStats.renderEngineTimingLegacy.hist,
mMaxPulledHistogramBuckets);
atom->set_total_timeline_frames(globalSlice.second.jankPayload.totalFrames);
atom->set_total_janky_frames(globalSlice.second.jankPayload.totalJankyFrames);
atom->set_total_janky_frames_with_long_cpu(globalSlice.second.jankPayload.totalSFLongCpu);
atom->set_total_janky_frames_with_long_gpu(globalSlice.second.jankPayload.totalSFLongGpu);
atom->set_total_janky_frames_sf_unattributed(
globalSlice.second.jankPayload.totalSFUnattributed);
atom->set_total_janky_frames_app_unattributed(
globalSlice.second.jankPayload.totalAppUnattributed);
atom->set_total_janky_frames_sf_scheduling(
globalSlice.second.jankPayload.totalSFScheduling);
atom->set_total_jank_frames_sf_prediction_error(
globalSlice.second.jankPayload.totalSFPredictionError);
atom->set_total_jank_frames_app_buffer_stuffing(
globalSlice.second.jankPayload.totalAppBufferStuffing);
atom->set_display_refresh_rate_bucket(globalSlice.first.displayRefreshRateBucket);
*atom->mutable_sf_deadline_misses() =
histogramToProto(globalSlice.second.displayDeadlineDeltas.hist,
mMaxPulledHistogramBuckets);
*atom->mutable_sf_prediction_errors() =
histogramToProto(globalSlice.second.displayPresentDeltas.hist,
mMaxPulledHistogramBuckets);
atom->set_render_rate_bucket(globalSlice.first.renderRateBucket);
}
// Always clear data.
clearGlobalLocked();
return atomList.SerializeToString(pulledData);
}
bool TimeStats::populateLayerAtom(std::string* pulledData) {
std::lock_guard<std::mutex> lock(mMutex);
std::vector<TimeStatsHelper::TimeStatsLayer*> dumpStats;
uint32_t numLayers = 0;
for (const auto& globalSlice : mTimeStats.stats) {
numLayers += globalSlice.second.stats.size();
}
dumpStats.reserve(numLayers);
for (auto& globalSlice : mTimeStats.stats) {
for (auto& layerSlice : globalSlice.second.stats) {
dumpStats.push_back(&layerSlice.second);
}
}
std::sort(dumpStats.begin(), dumpStats.end(),
[](TimeStatsHelper::TimeStatsLayer const* l,
TimeStatsHelper::TimeStatsLayer const* r) {
return l->totalFrames > r->totalFrames;
});
if (mMaxPulledLayers < dumpStats.size()) {
dumpStats.resize(mMaxPulledLayers);
}
SurfaceflingerStatsLayerInfoWrapper atomList;
for (auto& layer : dumpStats) {
SurfaceflingerStatsLayerInfo* atom = atomList.add_atom();
atom->set_layer_name(layer->layerName);
atom->set_total_frames(layer->totalFrames);
atom->set_dropped_frames(layer->droppedFrames);
const auto& present2PresentHist = layer->deltas.find("present2present");
if (present2PresentHist != layer->deltas.cend()) {
*atom->mutable_present_to_present() =
histogramToProto(present2PresentHist->second.hist, mMaxPulledHistogramBuckets);
}
const auto& post2presentHist = layer->deltas.find("post2present");
if (post2presentHist != layer->deltas.cend()) {
*atom->mutable_post_to_present() =
histogramToProto(post2presentHist->second.hist, mMaxPulledHistogramBuckets);
}
const auto& acquire2presentHist = layer->deltas.find("acquire2present");
if (acquire2presentHist != layer->deltas.cend()) {
*atom->mutable_acquire_to_present() =
histogramToProto(acquire2presentHist->second.hist, mMaxPulledHistogramBuckets);
}
const auto& latch2presentHist = layer->deltas.find("latch2present");
if (latch2presentHist != layer->deltas.cend()) {
*atom->mutable_latch_to_present() =
histogramToProto(latch2presentHist->second.hist, mMaxPulledHistogramBuckets);
}
const auto& desired2presentHist = layer->deltas.find("desired2present");
if (desired2presentHist != layer->deltas.cend()) {
*atom->mutable_desired_to_present() =
histogramToProto(desired2presentHist->second.hist, mMaxPulledHistogramBuckets);
}
const auto& post2acquireHist = layer->deltas.find("post2acquire");
if (post2acquireHist != layer->deltas.cend()) {
*atom->mutable_post_to_acquire() =
histogramToProto(post2acquireHist->second.hist, mMaxPulledHistogramBuckets);
}
atom->set_late_acquire_frames(layer->lateAcquireFrames);
atom->set_bad_desired_present_frames(layer->badDesiredPresentFrames);
atom->set_uid(layer->uid);
atom->set_total_timeline_frames(layer->jankPayload.totalFrames);
atom->set_total_janky_frames(layer->jankPayload.totalJankyFrames);
atom->set_total_janky_frames_with_long_cpu(layer->jankPayload.totalSFLongCpu);
atom->set_total_janky_frames_with_long_gpu(layer->jankPayload.totalSFLongGpu);
atom->set_total_janky_frames_sf_unattributed(layer->jankPayload.totalSFUnattributed);
atom->set_total_janky_frames_app_unattributed(layer->jankPayload.totalAppUnattributed);
atom->set_total_janky_frames_sf_scheduling(layer->jankPayload.totalSFScheduling);
atom->set_total_jank_frames_sf_prediction_error(layer->jankPayload.totalSFPredictionError);
atom->set_total_jank_frames_app_buffer_stuffing(layer->jankPayload.totalAppBufferStuffing);
atom->set_display_refresh_rate_bucket(layer->displayRefreshRateBucket);
atom->set_render_rate_bucket(layer->renderRateBucket);
*atom->mutable_set_frame_rate_vote() = frameRateVoteToProto(layer->setFrameRateVote);
*atom->mutable_app_deadline_misses() =
histogramToProto(layer->deltas["appDeadlineDeltas"].hist,
mMaxPulledHistogramBuckets);
atom->set_game_mode(gameModeToProto(layer->gameMode));
}
// Always clear data.
clearLayersLocked();
return atomList.SerializeToString(pulledData);
}
TimeStats::TimeStats() : TimeStats(std::nullopt, std::nullopt) {}
TimeStats::TimeStats(std::optional<size_t> maxPulledLayers,
std::optional<size_t> maxPulledHistogramBuckets) {
if (maxPulledLayers) {
mMaxPulledLayers = *maxPulledLayers;
}
if (maxPulledHistogramBuckets) {
mMaxPulledHistogramBuckets = *maxPulledHistogramBuckets;
}
}
bool TimeStats::onPullAtom(const int atomId, std::string* pulledData) {
bool success = false;
if (atomId == 10062) { // SURFACEFLINGER_STATS_GLOBAL_INFO
success = populateGlobalAtom(pulledData);
} else if (atomId == 10063) { // SURFACEFLINGER_STATS_LAYER_INFO
success = populateLayerAtom(pulledData);
}
// Enable timestats now. The first full pull for a given build is expected to
// have empty or very little stats, as stats are first enabled after the
// first pull is completed for either the global or layer stats.
enable();
return success;
}
void TimeStats::parseArgs(bool asProto, const Vector<String16>& args, std::string& result) {
ATRACE_CALL();
std::unordered_map<std::string, int32_t> argsMap;
for (size_t index = 0; index < args.size(); ++index) {
argsMap[std::string(String8(args[index]).c_str())] = index;
}
if (argsMap.count("-disable")) {
disable();
}
if (argsMap.count("-dump")) {
std::optional<uint32_t> maxLayers = std::nullopt;
auto iter = argsMap.find("-maxlayers");
if (iter != argsMap.end() && iter->second + 1 < static_cast<int32_t>(args.size())) {
int64_t value = strtol(String8(args[iter->second + 1]).c_str(), nullptr, 10);
value = std::clamp(value, int64_t(0), int64_t(UINT32_MAX));
maxLayers = static_cast<uint32_t>(value);
}
dump(asProto, maxLayers, result);
}
if (argsMap.count("-clear")) {
clearAll();
}
if (argsMap.count("-enable")) {
enable();
}
}
std::string TimeStats::miniDump() {
ATRACE_CALL();
std::string result = "TimeStats miniDump:\n";
std::lock_guard<std::mutex> lock(mMutex);
android::base::StringAppendF(&result, "Number of layers currently being tracked is %zu\n",
mTimeStatsTracker.size());
android::base::StringAppendF(&result, "Number of layers in the stats pool is %zu\n",
mTimeStats.stats.size());
return result;
}
void TimeStats::incrementTotalFrames() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.totalFramesLegacy++;
}
void TimeStats::incrementMissedFrames() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.missedFramesLegacy++;
}
void TimeStats::incrementClientCompositionFrames() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.clientCompositionFramesLegacy++;
}
void TimeStats::incrementClientCompositionReusedFrames() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.clientCompositionReusedFramesLegacy++;
}
void TimeStats::incrementRefreshRateSwitches() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.refreshRateSwitchesLegacy++;
}
void TimeStats::incrementCompositionStrategyChanges() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.compositionStrategyChangesLegacy++;
}
void TimeStats::recordDisplayEventConnectionCount(int32_t count) {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.displayEventConnectionsCountLegacy =
std::max(mTimeStats.displayEventConnectionsCountLegacy, count);
}
static int32_t toMs(nsecs_t nanos) {
int64_t millis =
std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::nanoseconds(nanos))
.count();
millis = std::clamp(millis, int64_t(INT32_MIN), int64_t(INT32_MAX));
return static_cast<int32_t>(millis);
}
static int32_t msBetween(nsecs_t start, nsecs_t end) {
return toMs(end - start);
}
void TimeStats::recordFrameDuration(nsecs_t startTime, nsecs_t endTime) {
if (!mEnabled.load()) return;
std::lock_guard<std::mutex> lock(mMutex);
if (mPowerTime.powerMode == PowerMode::ON) {
mTimeStats.frameDurationLegacy.insert(msBetween(startTime, endTime));
}
}
void TimeStats::recordRenderEngineDuration(nsecs_t startTime, nsecs_t endTime) {
if (!mEnabled.load()) return;
std::lock_guard<std::mutex> lock(mMutex);
if (mGlobalRecord.renderEngineDurations.size() == MAX_NUM_TIME_RECORDS) {
ALOGE("RenderEngineTimes are already at its maximum size[%zu]", MAX_NUM_TIME_RECORDS);
mGlobalRecord.renderEngineDurations.pop_front();
}
mGlobalRecord.renderEngineDurations.push_back({startTime, endTime});
}
void TimeStats::recordRenderEngineDuration(nsecs_t startTime,
const std::shared_ptr<FenceTime>& endTime) {
if (!mEnabled.load()) return;
std::lock_guard<std::mutex> lock(mMutex);
if (mGlobalRecord.renderEngineDurations.size() == MAX_NUM_TIME_RECORDS) {
ALOGE("RenderEngineTimes are already at its maximum size[%zu]", MAX_NUM_TIME_RECORDS);
mGlobalRecord.renderEngineDurations.pop_front();
}
mGlobalRecord.renderEngineDurations.push_back({startTime, endTime});
}
bool TimeStats::recordReadyLocked(int32_t layerId, TimeRecord* timeRecord) {
if (!timeRecord->ready) {
ALOGV("[%d]-[%" PRIu64 "]-presentFence is still not received", layerId,
timeRecord->frameTime.frameNumber);
return false;
}
if (timeRecord->acquireFence != nullptr) {
if (timeRecord->acquireFence->getSignalTime() == Fence::SIGNAL_TIME_PENDING) {
return false;
}
if (timeRecord->acquireFence->getSignalTime() != Fence::SIGNAL_TIME_INVALID) {
timeRecord->frameTime.acquireTime = timeRecord->acquireFence->getSignalTime();
timeRecord->acquireFence = nullptr;
} else {
ALOGV("[%d]-[%" PRIu64 "]-acquireFence signal time is invalid", layerId,
timeRecord->frameTime.frameNumber);
}
}
if (timeRecord->presentFence != nullptr) {
if (timeRecord->presentFence->getSignalTime() == Fence::SIGNAL_TIME_PENDING) {
return false;
}
if (timeRecord->presentFence->getSignalTime() != Fence::SIGNAL_TIME_INVALID) {
timeRecord->frameTime.presentTime = timeRecord->presentFence->getSignalTime();
timeRecord->presentFence = nullptr;
} else {
ALOGV("[%d]-[%" PRIu64 "]-presentFence signal time invalid", layerId,
timeRecord->frameTime.frameNumber);
}
}
return true;
}
static int32_t clampToNearestBucket(Fps fps, size_t bucketWidth) {
return std::round(fps.getValue() / bucketWidth) * bucketWidth;
}
void TimeStats::flushAvailableRecordsToStatsLocked(int32_t layerId, Fps displayRefreshRate,
std::optional<Fps> renderRate,
SetFrameRateVote frameRateVote,
int32_t gameMode) {
ATRACE_CALL();
ALOGV("[%d]-flushAvailableRecordsToStatsLocked", layerId);
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
TimeRecord& prevTimeRecord = layerRecord.prevTimeRecord;
std::deque<TimeRecord>& timeRecords = layerRecord.timeRecords;
const int32_t refreshRateBucket =
clampToNearestBucket(displayRefreshRate, REFRESH_RATE_BUCKET_WIDTH);
const int32_t renderRateBucket =
clampToNearestBucket(renderRate ? *renderRate : displayRefreshRate,
RENDER_RATE_BUCKET_WIDTH);
while (!timeRecords.empty()) {
if (!recordReadyLocked(layerId, &timeRecords[0])) break;
ALOGV("[%d]-[%" PRIu64 "]-presentFenceTime[%" PRId64 "]", layerId,
timeRecords[0].frameTime.frameNumber, timeRecords[0].frameTime.presentTime);
if (prevTimeRecord.ready) {
uid_t uid = layerRecord.uid;
const std::string& layerName = layerRecord.layerName;
TimeStatsHelper::TimelineStatsKey timelineKey = {refreshRateBucket, renderRateBucket};
if (!mTimeStats.stats.count(timelineKey)) {
mTimeStats.stats[timelineKey].key = timelineKey;
}
TimeStatsHelper::TimelineStats& displayStats = mTimeStats.stats[timelineKey];
TimeStatsHelper::LayerStatsKey layerKey = {uid, layerName, gameMode};
if (!displayStats.stats.count(layerKey)) {
displayStats.stats[layerKey].displayRefreshRateBucket = refreshRateBucket;
displayStats.stats[layerKey].renderRateBucket = renderRateBucket;
displayStats.stats[layerKey].uid = uid;
displayStats.stats[layerKey].layerName = layerName;
displayStats.stats[layerKey].gameMode = gameMode;
}
if (frameRateVote.frameRate > 0.0f) {
displayStats.stats[layerKey].setFrameRateVote = frameRateVote;
}
TimeStatsHelper::TimeStatsLayer& timeStatsLayer = displayStats.stats[layerKey];
timeStatsLayer.totalFrames++;
timeStatsLayer.droppedFrames += layerRecord.droppedFrames;
timeStatsLayer.lateAcquireFrames += layerRecord.lateAcquireFrames;
timeStatsLayer.badDesiredPresentFrames += layerRecord.badDesiredPresentFrames;
layerRecord.droppedFrames = 0;
layerRecord.lateAcquireFrames = 0;
layerRecord.badDesiredPresentFrames = 0;
const int32_t postToAcquireMs = msBetween(timeRecords[0].frameTime.postTime,
timeRecords[0].frameTime.acquireTime);
ALOGV("[%d]-[%" PRIu64 "]-post2acquire[%d]", layerId,
timeRecords[0].frameTime.frameNumber, postToAcquireMs);
timeStatsLayer.deltas["post2acquire"].insert(postToAcquireMs);
const int32_t postToPresentMs = msBetween(timeRecords[0].frameTime.postTime,
timeRecords[0].frameTime.presentTime);
ALOGV("[%d]-[%" PRIu64 "]-post2present[%d]", layerId,
timeRecords[0].frameTime.frameNumber, postToPresentMs);
timeStatsLayer.deltas["post2present"].insert(postToPresentMs);
const int32_t acquireToPresentMs = msBetween(timeRecords[0].frameTime.acquireTime,
timeRecords[0].frameTime.presentTime);
ALOGV("[%d]-[%" PRIu64 "]-acquire2present[%d]", layerId,
timeRecords[0].frameTime.frameNumber, acquireToPresentMs);
timeStatsLayer.deltas["acquire2present"].insert(acquireToPresentMs);
const int32_t latchToPresentMs = msBetween(timeRecords[0].frameTime.latchTime,
timeRecords[0].frameTime.presentTime);
ALOGV("[%d]-[%" PRIu64 "]-latch2present[%d]", layerId,
timeRecords[0].frameTime.frameNumber, latchToPresentMs);
timeStatsLayer.deltas["latch2present"].insert(latchToPresentMs);
const int32_t desiredToPresentMs = msBetween(timeRecords[0].frameTime.desiredTime,
timeRecords[0].frameTime.presentTime);
ALOGV("[%d]-[%" PRIu64 "]-desired2present[%d]", layerId,
timeRecords[0].frameTime.frameNumber, desiredToPresentMs);
timeStatsLayer.deltas["desired2present"].insert(desiredToPresentMs);
const int32_t presentToPresentMs = msBetween(prevTimeRecord.frameTime.presentTime,
timeRecords[0].frameTime.presentTime);
ALOGV("[%d]-[%" PRIu64 "]-present2present[%d]", layerId,
timeRecords[0].frameTime.frameNumber, presentToPresentMs);
timeStatsLayer.deltas["present2present"].insert(presentToPresentMs);
}
prevTimeRecord = timeRecords[0];
timeRecords.pop_front();
layerRecord.waitData--;
}
}
static constexpr const char* kPopupWindowPrefix = "PopupWindow";
static const size_t kMinLenLayerName = std::strlen(kPopupWindowPrefix);
// Avoid tracking the "PopupWindow:<random hash>#<number>" layers
static bool layerNameIsValid(const std::string& layerName) {
return layerName.length() >= kMinLenLayerName &&
layerName.compare(0, kMinLenLayerName, kPopupWindowPrefix) != 0;
}
bool TimeStats::canAddNewAggregatedStats(uid_t uid, const std::string& layerName,
int32_t gameMode) {
uint32_t layerRecords = 0;
for (const auto& record : mTimeStats.stats) {
if (record.second.stats.count({uid, layerName, gameMode}) > 0) {
return true;
}
layerRecords += record.second.stats.size();
}
return mTimeStats.stats.size() < MAX_NUM_LAYER_STATS;
}
void TimeStats::setPostTime(int32_t layerId, uint64_t frameNumber, const std::string& layerName,
uid_t uid, nsecs_t postTime, int32_t gameMode) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-[%s]-PostTime[%" PRId64 "]", layerId, frameNumber, layerName.c_str(),
postTime);
std::lock_guard<std::mutex> lock(mMutex);
if (!canAddNewAggregatedStats(uid, layerName, gameMode)) {
return;
}
if (!mTimeStatsTracker.count(layerId) && mTimeStatsTracker.size() < MAX_NUM_LAYER_RECORDS &&
layerNameIsValid(layerName)) {
mTimeStatsTracker[layerId].uid = uid;
mTimeStatsTracker[layerId].layerName = layerName;
mTimeStatsTracker[layerId].gameMode = gameMode;
}
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.timeRecords.size() == MAX_NUM_TIME_RECORDS) {
ALOGE("[%d]-[%s]-timeRecords is at its maximum size[%zu]. Ignore this when unittesting.",
layerId, layerRecord.layerName.c_str(), MAX_NUM_TIME_RECORDS);
mTimeStatsTracker.erase(layerId);
return;
}
// For most media content, the acquireFence is invalid because the buffer is
// ready at the queueBuffer stage. In this case, acquireTime should be given
// a default value as postTime.
TimeRecord timeRecord = {
.frameTime =
{
.frameNumber = frameNumber,
.postTime = postTime,
.latchTime = postTime,
.acquireTime = postTime,
.desiredTime = postTime,
},
};
layerRecord.timeRecords.push_back(timeRecord);
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
layerRecord.waitData = layerRecord.timeRecords.size() - 1;
}
void TimeStats::setLatchTime(int32_t layerId, uint64_t frameNumber, nsecs_t latchTime) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-LatchTime[%" PRId64 "]", layerId, frameNumber, latchTime);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.frameTime.latchTime = latchTime;
}
}
void TimeStats::incrementLatchSkipped(int32_t layerId, LatchSkipReason reason) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-LatchSkipped-Reason[%d]", layerId,
static_cast<std::underlying_type<LatchSkipReason>::type>(reason));
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
switch (reason) {
case LatchSkipReason::LateAcquire:
layerRecord.lateAcquireFrames++;
break;
}
}
void TimeStats::incrementBadDesiredPresent(int32_t layerId) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-BadDesiredPresent", layerId);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
layerRecord.badDesiredPresentFrames++;
}
void TimeStats::setDesiredTime(int32_t layerId, uint64_t frameNumber, nsecs_t desiredTime) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-DesiredTime[%" PRId64 "]", layerId, frameNumber, desiredTime);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.frameTime.desiredTime = desiredTime;
}
}
void TimeStats::setAcquireTime(int32_t layerId, uint64_t frameNumber, nsecs_t acquireTime) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-AcquireTime[%" PRId64 "]", layerId, frameNumber, acquireTime);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.frameTime.acquireTime = acquireTime;
}
}
void TimeStats::setAcquireFence(int32_t layerId, uint64_t frameNumber,
const std::shared_ptr<FenceTime>& acquireFence) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-AcquireFenceTime[%" PRId64 "]", layerId, frameNumber,
acquireFence->getSignalTime());
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.acquireFence = acquireFence;
}
}
void TimeStats::setPresentTime(int32_t layerId, uint64_t frameNumber, nsecs_t presentTime,
Fps displayRefreshRate, std::optional<Fps> renderRate,
SetFrameRateVote frameRateVote, int32_t gameMode) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-PresentTime[%" PRId64 "]", layerId, frameNumber, presentTime);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.frameTime.presentTime = presentTime;
timeRecord.ready = true;
layerRecord.waitData++;
}
flushAvailableRecordsToStatsLocked(layerId, displayRefreshRate, renderRate, frameRateVote,
gameMode);
}
void TimeStats::setPresentFence(int32_t layerId, uint64_t frameNumber,
const std::shared_ptr<FenceTime>& presentFence,
Fps displayRefreshRate, std::optional<Fps> renderRate,
SetFrameRateVote frameRateVote, int32_t gameMode) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-PresentFenceTime[%" PRId64 "]", layerId, frameNumber,
presentFence->getSignalTime());
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
if (layerRecord.waitData < 0 ||
layerRecord.waitData >= static_cast<int32_t>(layerRecord.timeRecords.size()))
return;
TimeRecord& timeRecord = layerRecord.timeRecords[layerRecord.waitData];
if (timeRecord.frameTime.frameNumber == frameNumber) {
timeRecord.presentFence = presentFence;
timeRecord.ready = true;
layerRecord.waitData++;
}
flushAvailableRecordsToStatsLocked(layerId, displayRefreshRate, renderRate, frameRateVote,
gameMode);
}
static const constexpr int32_t kValidJankyReason = JankType::DisplayHAL |
JankType::SurfaceFlingerCpuDeadlineMissed | JankType::SurfaceFlingerGpuDeadlineMissed |
JankType::AppDeadlineMissed | JankType::PredictionError |
JankType::SurfaceFlingerScheduling;
template <class T>
static void updateJankPayload(T& t, int32_t reasons) {
t.jankPayload.totalFrames++;
if (reasons & kValidJankyReason) {
t.jankPayload.totalJankyFrames++;
if ((reasons & JankType::SurfaceFlingerCpuDeadlineMissed) != 0) {
t.jankPayload.totalSFLongCpu++;
}
if ((reasons & JankType::SurfaceFlingerGpuDeadlineMissed) != 0) {
t.jankPayload.totalSFLongGpu++;
}
if ((reasons & JankType::DisplayHAL) != 0) {
t.jankPayload.totalSFUnattributed++;
}
if ((reasons & JankType::AppDeadlineMissed) != 0) {
t.jankPayload.totalAppUnattributed++;
}
if ((reasons & JankType::PredictionError) != 0) {
t.jankPayload.totalSFPredictionError++;
}
if ((reasons & JankType::SurfaceFlingerScheduling) != 0) {
t.jankPayload.totalSFScheduling++;
}
}
// We want to track BufferStuffing separately as it can provide info on latency issues
if (reasons & JankType::BufferStuffing) {
t.jankPayload.totalAppBufferStuffing++;
}
}
void TimeStats::incrementJankyFrames(const JankyFramesInfo& info) {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
// Only update layer stats if we're already tracking the layer in TimeStats.
// Otherwise, continue tracking the statistic but use a default layer name instead.
// As an implementation detail, we do this because this method is expected to be
// called from FrameTimeline, whose jank classification includes transaction jank
// that occurs without a buffer. But, in general those layer names are not suitable as
// aggregation keys: e.g., it's normal and expected for Window Manager to include the hash code
// for an animation leash. So while we can show that jank in dumpsys, aggregating based on the
// layer blows up the stats size, so as a workaround drop those stats. This assumes that
// TimeStats will flush the first present fence for a layer *before* FrameTimeline does so that
// the first jank record is not dropped.
static const std::string kDefaultLayerName = "none";
static constexpr int32_t kDefaultGameMode = TimeStatsHelper::GameModeUnsupported;
const int32_t refreshRateBucket =
clampToNearestBucket(info.refreshRate, REFRESH_RATE_BUCKET_WIDTH);
const int32_t renderRateBucket =
clampToNearestBucket(info.renderRate ? *info.renderRate : info.refreshRate,
RENDER_RATE_BUCKET_WIDTH);
const TimeStatsHelper::TimelineStatsKey timelineKey = {refreshRateBucket, renderRateBucket};
if (!mTimeStats.stats.count(timelineKey)) {
mTimeStats.stats[timelineKey].key = timelineKey;
}
TimeStatsHelper::TimelineStats& timelineStats = mTimeStats.stats[timelineKey];
updateJankPayload<TimeStatsHelper::TimelineStats>(timelineStats, info.reasons);
TimeStatsHelper::LayerStatsKey layerKey = {info.uid, info.layerName, info.gameMode};
if (!timelineStats.stats.count(layerKey)) {
layerKey = {info.uid, kDefaultLayerName, kDefaultGameMode};
timelineStats.stats[layerKey].displayRefreshRateBucket = refreshRateBucket;
timelineStats.stats[layerKey].renderRateBucket = renderRateBucket;
timelineStats.stats[layerKey].uid = info.uid;
timelineStats.stats[layerKey].layerName = kDefaultLayerName;
timelineStats.stats[layerKey].gameMode = kDefaultGameMode;
}
TimeStatsHelper::TimeStatsLayer& timeStatsLayer = timelineStats.stats[layerKey];
updateJankPayload<TimeStatsHelper::TimeStatsLayer>(timeStatsLayer, info.reasons);
if (info.reasons & kValidJankyReason) {
// TimeStats Histograms only retain positive values, so we don't need to check if these
// deadlines were really missed if we know that the frame had jank, since deadlines
// that were met will be dropped.
timelineStats.displayDeadlineDeltas.insert(toMs(info.displayDeadlineDelta));
timelineStats.displayPresentDeltas.insert(toMs(info.displayPresentJitter));
timeStatsLayer.deltas["appDeadlineDeltas"].insert(toMs(info.appDeadlineDelta));
}
}
void TimeStats::onDestroy(int32_t layerId) {
ATRACE_CALL();
ALOGV("[%d]-onDestroy", layerId);
std::lock_guard<std::mutex> lock(mMutex);
mTimeStatsTracker.erase(layerId);
}
void TimeStats::removeTimeRecord(int32_t layerId, uint64_t frameNumber) {
if (!mEnabled.load()) return;
ATRACE_CALL();
ALOGV("[%d]-[%" PRIu64 "]-removeTimeRecord", layerId, frameNumber);
std::lock_guard<std::mutex> lock(mMutex);
if (!mTimeStatsTracker.count(layerId)) return;
LayerRecord& layerRecord = mTimeStatsTracker[layerId];
size_t removeAt = 0;
for (const TimeRecord& record : layerRecord.timeRecords) {
if (record.frameTime.frameNumber == frameNumber) break;
removeAt++;
}
if (removeAt == layerRecord.timeRecords.size()) return;
layerRecord.timeRecords.erase(layerRecord.timeRecords.begin() + removeAt);
if (layerRecord.waitData > static_cast<int32_t>(removeAt)) {
layerRecord.waitData--;
}
layerRecord.droppedFrames++;
}
void TimeStats::flushPowerTimeLocked() {
if (!mEnabled.load()) return;
nsecs_t curTime = systemTime();
// elapsedTime is in milliseconds.
int64_t elapsedTime = (curTime - mPowerTime.prevTime) / 1000000;
switch (mPowerTime.powerMode) {
case PowerMode::ON:
mTimeStats.displayOnTimeLegacy += elapsedTime;
break;
case PowerMode::OFF:
case PowerMode::DOZE:
case PowerMode::DOZE_SUSPEND:
case PowerMode::ON_SUSPEND:
default:
break;
}
mPowerTime.prevTime = curTime;
}
void TimeStats::setPowerMode(PowerMode powerMode) {
if (!mEnabled.load()) {
std::lock_guard<std::mutex> lock(mMutex);
mPowerTime.powerMode = powerMode;
return;
}
std::lock_guard<std::mutex> lock(mMutex);
if (powerMode == mPowerTime.powerMode) return;
flushPowerTimeLocked();
mPowerTime.powerMode = powerMode;
}
void TimeStats::recordRefreshRate(uint32_t fps, nsecs_t duration) {
std::lock_guard<std::mutex> lock(mMutex);
if (mTimeStats.refreshRateStatsLegacy.count(fps)) {
mTimeStats.refreshRateStatsLegacy[fps] += duration;
} else {
mTimeStats.refreshRateStatsLegacy.insert({fps, duration});
}
}
void TimeStats::flushAvailableGlobalRecordsToStatsLocked() {
ATRACE_CALL();
while (!mGlobalRecord.presentFences.empty()) {
const nsecs_t curPresentTime = mGlobalRecord.presentFences.front()->getSignalTime();
if (curPresentTime == Fence::SIGNAL_TIME_PENDING) break;
if (curPresentTime == Fence::SIGNAL_TIME_INVALID) {
ALOGE("GlobalPresentFence is invalid!");
mGlobalRecord.prevPresentTime = 0;
mGlobalRecord.presentFences.pop_front();
continue;
}
ALOGV("GlobalPresentFenceTime[%" PRId64 "]",
mGlobalRecord.presentFences.front()->getSignalTime());
if (mGlobalRecord.prevPresentTime != 0) {
const int32_t presentToPresentMs =
msBetween(mGlobalRecord.prevPresentTime, curPresentTime);
ALOGV("Global present2present[%d] prev[%" PRId64 "] curr[%" PRId64 "]",
presentToPresentMs, mGlobalRecord.prevPresentTime, curPresentTime);
mTimeStats.presentToPresentLegacy.insert(presentToPresentMs);
}
mGlobalRecord.prevPresentTime = curPresentTime;
mGlobalRecord.presentFences.pop_front();
}
while (!mGlobalRecord.renderEngineDurations.empty()) {
const auto duration = mGlobalRecord.renderEngineDurations.front();
const auto& endTime = duration.endTime;
nsecs_t endNs = -1;
if (auto val = std::get_if<nsecs_t>(&endTime)) {
endNs = *val;
} else {
endNs = std::get<std::shared_ptr<FenceTime>>(endTime)->getSignalTime();
}
if (endNs == Fence::SIGNAL_TIME_PENDING) break;
if (endNs < 0) {
ALOGE("RenderEngineTiming is invalid!");
mGlobalRecord.renderEngineDurations.pop_front();
continue;
}
const int32_t renderEngineMs = msBetween(duration.startTime, endNs);
mTimeStats.renderEngineTimingLegacy.insert(renderEngineMs);
mGlobalRecord.renderEngineDurations.pop_front();
}
}
void TimeStats::setPresentFenceGlobal(const std::shared_ptr<FenceTime>& presentFence) {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
if (presentFence == nullptr || !presentFence->isValid()) {
mGlobalRecord.prevPresentTime = 0;
return;
}
if (mPowerTime.powerMode != PowerMode::ON) {
// Try flushing the last present fence on PowerMode::ON.
flushAvailableGlobalRecordsToStatsLocked();
mGlobalRecord.presentFences.clear();
mGlobalRecord.prevPresentTime = 0;
return;
}
if (mGlobalRecord.presentFences.size() == MAX_NUM_TIME_RECORDS) {
// The front presentFence must be trapped in pending status in this
// case. Try dequeuing the front one to recover.
ALOGE("GlobalPresentFences is already at its maximum size[%zu]", MAX_NUM_TIME_RECORDS);
mGlobalRecord.prevPresentTime = 0;
mGlobalRecord.presentFences.pop_front();
}
mGlobalRecord.presentFences.emplace_back(presentFence);
flushAvailableGlobalRecordsToStatsLocked();
}
void TimeStats::enable() {
if (mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
mEnabled.store(true);
mTimeStats.statsStartLegacy = static_cast<int64_t>(std::time(0));
mPowerTime.prevTime = systemTime();
ALOGD("Enabled");
}
void TimeStats::disable() {
if (!mEnabled.load()) return;
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
flushPowerTimeLocked();
mEnabled.store(false);
mTimeStats.statsEndLegacy = static_cast<int64_t>(std::time(0));
ALOGD("Disabled");
}
void TimeStats::clearAll() {
std::lock_guard<std::mutex> lock(mMutex);
mTimeStats.stats.clear();
clearGlobalLocked();
clearLayersLocked();
}
void TimeStats::clearGlobalLocked() {
ATRACE_CALL();
mTimeStats.statsStartLegacy = (mEnabled.load() ? static_cast<int64_t>(std::time(0)) : 0);
mTimeStats.statsEndLegacy = 0;
mTimeStats.totalFramesLegacy = 0;
mTimeStats.missedFramesLegacy = 0;
mTimeStats.clientCompositionFramesLegacy = 0;
mTimeStats.clientCompositionReusedFramesLegacy = 0;
mTimeStats.refreshRateSwitchesLegacy = 0;
mTimeStats.compositionStrategyChangesLegacy = 0;
mTimeStats.displayEventConnectionsCountLegacy = 0;
mTimeStats.displayOnTimeLegacy = 0;
mTimeStats.presentToPresentLegacy.hist.clear();
mTimeStats.frameDurationLegacy.hist.clear();
mTimeStats.renderEngineTimingLegacy.hist.clear();
mTimeStats.refreshRateStatsLegacy.clear();
mPowerTime.prevTime = systemTime();
for (auto& globalRecord : mTimeStats.stats) {
globalRecord.second.clearGlobals();
}
mGlobalRecord.prevPresentTime = 0;
mGlobalRecord.presentFences.clear();
ALOGD("Cleared global stats");
}
void TimeStats::clearLayersLocked() {
ATRACE_CALL();
mTimeStatsTracker.clear();
for (auto& globalRecord : mTimeStats.stats) {
globalRecord.second.stats.clear();
}
ALOGD("Cleared layer stats");
}
bool TimeStats::isEnabled() {
return mEnabled.load();
}
void TimeStats::dump(bool asProto, std::optional<uint32_t> maxLayers, std::string& result) {
ATRACE_CALL();
std::lock_guard<std::mutex> lock(mMutex);
if (mTimeStats.statsStartLegacy == 0) {
return;
}
mTimeStats.statsEndLegacy = static_cast<int64_t>(std::time(0));
flushPowerTimeLocked();
if (asProto) {
ALOGD("Dumping TimeStats as proto");
SFTimeStatsGlobalProto timeStatsProto = mTimeStats.toProto(maxLayers);
result.append(timeStatsProto.SerializeAsString());
} else {
ALOGD("Dumping TimeStats as text");
result.append(mTimeStats.toString(maxLayers));
result.append("\n");
}
}
} // namespace impl
} // namespace android