blob: ab6420e990f94076255ea4cc2dc4e7f039de601b [file] [log] [blame]
/*
* Copyright (C) 2017 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 "GraphicsStatsService.h"
#include "JankTracker.h"
#include <frameworks/base/core/proto/android/service/graphicsstats.pb.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <log/log.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
namespace android {
namespace uirenderer {
using namespace google::protobuf;
constexpr int32_t sCurrentFileVersion = 1;
constexpr int32_t sHeaderSize = 4;
static_assert(sizeof(sCurrentFileVersion) == sHeaderSize, "Header size is wrong");
constexpr int sHistogramSize =
std::tuple_size<decltype(ProfileData::frameCounts)>::value +
std::tuple_size<decltype(ProfileData::slowFrameCounts)>::value;
static void mergeProfileDataIntoProto(service::GraphicsStatsProto* proto,
const std::string& package, int versionCode, int64_t startTime, int64_t endTime,
const ProfileData* data);
static void dumpAsTextToFd(service::GraphicsStatsProto* proto, int outFd);
bool GraphicsStatsService::parseFromFile(const std::string& path, service::GraphicsStatsProto* output) {
int fd = open(path.c_str(), O_RDONLY);
if (fd == -1) {
int err = errno;
// The file not existing is normal for addToDump(), so only log if
// we get an unexpected error
if (err != ENOENT) {
ALOGW("Failed to open '%s', errno=%d (%s)", path.c_str(), err, strerror(err));
}
return false;
}
uint32_t file_version;
ssize_t bytesRead = read(fd, &file_version, sHeaderSize);
if (bytesRead != sHeaderSize || file_version != sCurrentFileVersion) {
ALOGW("Failed to read '%s', bytesRead=%zd file_version=%d", path.c_str(), bytesRead,
file_version);
close(fd);
return false;
}
io::FileInputStream input(fd);
bool success = output->ParseFromZeroCopyStream(&input);
if (input.GetErrno() != 0) {
ALOGW("Error reading from fd=%d, path='%s' err=%d (%s)",
fd, path.c_str(), input.GetErrno(), strerror(input.GetErrno()));
success = false;
} else if (!success) {
ALOGW("Parse failed on '%s' error='%s'",
path.c_str(), output->InitializationErrorString().c_str());
}
close(fd);
return success;
}
void mergeProfileDataIntoProto(service::GraphicsStatsProto* proto, const std::string& package,
int versionCode, int64_t startTime, int64_t endTime, const ProfileData* data) {
if (proto->stats_start() == 0 || proto->stats_start() > startTime) {
proto->set_stats_start(startTime);
}
if (proto->stats_end() == 0 || proto->stats_end() < endTime) {
proto->set_stats_end(endTime);
}
proto->set_package_name(package);
proto->set_version_code(versionCode);
auto summary = proto->mutable_summary();
summary->set_total_frames(summary->total_frames() + data->totalFrameCount);
summary->set_janky_frames(summary->janky_frames() + data->jankFrameCount);
summary->set_missed_vsync_count(
summary->missed_vsync_count() + data->jankTypeCounts[kMissedVsync]);
summary->set_high_input_latency_count(
summary->high_input_latency_count() + data->jankTypeCounts[kHighInputLatency]);
summary->set_slow_ui_thread_count(
summary->slow_ui_thread_count() + data->jankTypeCounts[kSlowUI]);
summary->set_slow_bitmap_upload_count(
summary->slow_bitmap_upload_count() + data->jankTypeCounts[kSlowSync]);
summary->set_slow_draw_count(
summary->slow_draw_count() + data->jankTypeCounts[kSlowRT]);
bool creatingHistogram = false;
if (proto->histogram_size() == 0) {
proto->mutable_histogram()->Reserve(sHistogramSize);
creatingHistogram = true;
} else if (proto->histogram_size() != sHistogramSize) {
LOG_ALWAYS_FATAL("Histogram size mismatch, proto is %d expected %d",
proto->histogram_size(), sHistogramSize);
}
for (size_t i = 0; i < data->frameCounts.size(); i++) {
service::GraphicsStatsHistogramBucketProto* bucket;
int32_t renderTime = JankTracker::frameTimeForFrameCountIndex(i);
if (creatingHistogram) {
bucket = proto->add_histogram();
bucket->set_render_millis(renderTime);
} else {
bucket = proto->mutable_histogram(i);
LOG_ALWAYS_FATAL_IF(bucket->render_millis() != renderTime,
"Frame time mistmatch %d vs. %d", bucket->render_millis(), renderTime);
}
bucket->set_frame_count(bucket->frame_count() + data->frameCounts[i]);
}
for (size_t i = 0; i < data->slowFrameCounts.size(); i++) {
service::GraphicsStatsHistogramBucketProto* bucket;
int32_t renderTime = JankTracker::frameTimeForSlowFrameCountIndex(i);
if (creatingHistogram) {
bucket = proto->add_histogram();
bucket->set_render_millis(renderTime);
} else {
constexpr int offset = std::tuple_size<decltype(ProfileData::frameCounts)>::value;
bucket = proto->mutable_histogram(offset + i);
LOG_ALWAYS_FATAL_IF(bucket->render_millis() != renderTime,
"Frame time mistmatch %d vs. %d", bucket->render_millis(), renderTime);
}
bucket->set_frame_count(bucket->frame_count() + data->slowFrameCounts[i]);
}
}
static int32_t findPercentile(service::GraphicsStatsProto* proto, int percentile) {
int32_t pos = percentile * proto->summary().total_frames() / 100;
int32_t remaining = proto->summary().total_frames() - pos;
for (auto it = proto->histogram().rbegin(); it != proto->histogram().rend(); ++it) {
remaining -= it->frame_count();
if (remaining <= 0) {
return it->render_millis();
}
}
return 0;
}
void dumpAsTextToFd(service::GraphicsStatsProto* proto, int fd) {
// This isn't a full validation, just enough that we can deref at will
LOG_ALWAYS_FATAL_IF(proto->package_name().empty()
|| !proto->has_summary(), "package_name() '%s' summary %d",
proto->package_name().c_str(), proto->has_summary());
dprintf(fd, "\nPackage: %s", proto->package_name().c_str());
dprintf(fd, "\nVersion: %d", proto->version_code());
dprintf(fd, "\nStats since: %lldns", proto->stats_start());
dprintf(fd, "\nStats end: %lldns", proto->stats_end());
auto summary = proto->summary();
dprintf(fd, "\nTotal frames rendered: %d", summary.total_frames());
dprintf(fd, "\nJanky frames: %d (%.2f%%)", summary.janky_frames(),
(float) summary.janky_frames() / (float) summary.total_frames() * 100.0f);
dprintf(fd, "\n50th percentile: %dms", findPercentile(proto, 50));
dprintf(fd, "\n90th percentile: %dms", findPercentile(proto, 90));
dprintf(fd, "\n95th percentile: %dms", findPercentile(proto, 95));
dprintf(fd, "\n99th percentile: %dms", findPercentile(proto, 99));
dprintf(fd, "\nNumber Missed Vsync: %d", summary.missed_vsync_count());
dprintf(fd, "\nNumber High input latency: %d", summary.high_input_latency_count());
dprintf(fd, "\nNumber Slow UI thread: %d", summary.slow_ui_thread_count());
dprintf(fd, "\nNumber Slow bitmap uploads: %d", summary.slow_bitmap_upload_count());
dprintf(fd, "\nNumber Slow issue draw commands: %d", summary.slow_draw_count());
dprintf(fd, "\nHISTOGRAM:");
for (const auto& it : proto->histogram()) {
dprintf(fd, " %dms=%d", it.render_millis(), it.frame_count());
}
dprintf(fd, "\n");
}
void GraphicsStatsService::saveBuffer(const std::string& path, const std::string& package,
int versionCode, int64_t startTime, int64_t endTime, const ProfileData* data) {
service::GraphicsStatsProto statsProto;
if (!parseFromFile(path, &statsProto)) {
statsProto.Clear();
}
mergeProfileDataIntoProto(&statsProto, package, versionCode, startTime, endTime, data);
// Although we might not have read any data from the file, merging the existing data
// should always fully-initialize the proto
LOG_ALWAYS_FATAL_IF(!statsProto.IsInitialized(), "%s",
statsProto.InitializationErrorString().c_str());
LOG_ALWAYS_FATAL_IF(statsProto.package_name().empty()
|| !statsProto.has_summary(), "package_name() '%s' summary %d",
statsProto.package_name().c_str(), statsProto.has_summary());
int outFd = open(path.c_str(), O_CREAT | O_RDWR | O_TRUNC, 0660);
if (outFd <= 0) {
int err = errno;
ALOGW("Failed to open '%s', error=%d (%s)", path.c_str(), err, strerror(err));
return;
}
int wrote = write(outFd, &sCurrentFileVersion, sHeaderSize);
if (wrote != sHeaderSize) {
int err = errno;
ALOGW("Failed to write header to '%s', returned=%d errno=%d (%s)",
path.c_str(), wrote, err, strerror(err));
close(outFd);
return;
}
{
io::FileOutputStream output(outFd);
bool success = statsProto.SerializeToZeroCopyStream(&output) && output.Flush();
if (output.GetErrno() != 0) {
ALOGW("Error writing to fd=%d, path='%s' err=%d (%s)",
outFd, path.c_str(), output.GetErrno(), strerror(output.GetErrno()));
success = false;
} else if (!success) {
ALOGW("Serialize failed on '%s' unknown error", path.c_str());
}
}
close(outFd);
}
class GraphicsStatsService::Dump {
public:
Dump(int outFd, DumpType type) : mFd(outFd), mType(type) {}
int fd() { return mFd; }
DumpType type() { return mType; }
service::GraphicsStatsServiceDumpProto& proto() { return mProto; }
private:
int mFd;
DumpType mType;
service::GraphicsStatsServiceDumpProto mProto;
};
GraphicsStatsService::Dump* GraphicsStatsService::createDump(int outFd, DumpType type) {
return new Dump(outFd, type);
}
void GraphicsStatsService::addToDump(Dump* dump, const std::string& path, const std::string& package,
int versionCode, int64_t startTime, int64_t endTime, const ProfileData* data) {
service::GraphicsStatsProto statsProto;
if (!path.empty() && !parseFromFile(path, &statsProto)) {
statsProto.Clear();
}
if (data) {
mergeProfileDataIntoProto(&statsProto, package, versionCode, startTime, endTime, data);
}
if (!statsProto.IsInitialized()) {
ALOGW("Failed to load profile data from path '%s' and data %p",
path.empty() ? "<empty>" : path.c_str(), data);
return;
}
if (dump->type() == DumpType::Protobuf) {
dump->proto().add_stats()->CopyFrom(statsProto);
} else {
dumpAsTextToFd(&statsProto, dump->fd());
}
}
void GraphicsStatsService::addToDump(Dump* dump, const std::string& path) {
service::GraphicsStatsProto statsProto;
if (!parseFromFile(path, &statsProto)) {
return;
}
if (dump->type() == DumpType::Protobuf) {
dump->proto().add_stats()->CopyFrom(statsProto);
} else {
dumpAsTextToFd(&statsProto, dump->fd());
}
}
void GraphicsStatsService::finishDump(Dump* dump) {
if (dump->type() == DumpType::Protobuf) {
io::FileOutputStream stream(dump->fd());
dump->proto().SerializeToZeroCopyStream(&stream);
}
delete dump;
}
} /* namespace uirenderer */
} /* namespace android */