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/*
* Copyright (C) 2020 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.
*/
#define LOG_TAG "android.hardware.power.stats-service.pixel"
#include <dataproviders/PowerStatsEnergyConsumer.h>
#include <android-base/logging.h>
namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace stats {
PowerStatsEnergyConsumer::PowerStatsEnergyConsumer(std::shared_ptr<PowerStats> p,
EnergyConsumerType type, std::string name,
bool attr)
: kType(type), kName(name), mPowerStats(p), mWithAttribution(attr) {}
std::shared_ptr<PowerStatsEnergyConsumer> PowerStatsEnergyConsumer::createMeterConsumer(
std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
std::set<std::string> channelNames) {
return createMeterAndEntityConsumer(p, type, name, channelNames, "", {});
}
std::shared_ptr<PowerStatsEnergyConsumer> PowerStatsEnergyConsumer::createEntityConsumer(
std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
std::string powerEntityName, std::map<std::string, int32_t> stateCoeffs) {
return createMeterAndEntityConsumer(p, type, name, {}, powerEntityName, stateCoeffs);
}
std::shared_ptr<PowerStatsEnergyConsumer> PowerStatsEnergyConsumer::createMeterAndEntityConsumer(
std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
std::set<std::string> channelNames, std::string powerEntityName,
std::map<std::string, int32_t> stateCoeffs) {
auto ret =
std::shared_ptr<PowerStatsEnergyConsumer>(new PowerStatsEnergyConsumer(p, type, name));
if (ret->addEnergyMeter(channelNames) && ret->addPowerEntity(powerEntityName, stateCoeffs)) {
return ret;
}
LOG(ERROR) << "Failed to create PowerStatsEnergyConsumer for " << name;
return nullptr;
}
std::shared_ptr<PowerStatsEnergyConsumer> PowerStatsEnergyConsumer::createMeterAndAttrConsumer(
std::shared_ptr<PowerStats> p, EnergyConsumerType type, std::string name,
std::set<std::string> channelNames, std::unordered_map<int32_t, std::string> paths,
std::map<std::string, int32_t> stateCoeffs) {
auto ret = std::shared_ptr<PowerStatsEnergyConsumer>(
new PowerStatsEnergyConsumer(p, type, name, true));
if (ret->addEnergyMeter(channelNames) && ret->addAttribution(paths, stateCoeffs)) {
return ret;
}
LOG(ERROR) << "Failed to create PowerStatsEnergyConsumer for " << name;
return nullptr;
}
bool PowerStatsEnergyConsumer::addEnergyMeter(std::set<std::string> channelNames) {
if (channelNames.empty()) {
return true;
}
std::vector<Channel> channels;
mPowerStats->getEnergyMeterInfo(&channels);
for (const auto &c : channels) {
if (channelNames.count(c.name)) {
mChannelIds.push_back(c.id);
}
}
return (mChannelIds.size() == channelNames.size());
}
bool PowerStatsEnergyConsumer::addPowerEntity(std::string powerEntityName,
std::map<std::string, int32_t> stateCoeffs) {
if (powerEntityName.empty() || stateCoeffs.empty()) {
return true;
}
std::vector<PowerEntity> powerEntities;
mPowerStats->getPowerEntityInfo(&powerEntities);
for (const auto &p : powerEntities) {
if (powerEntityName == p.name) {
mPowerEntityId = p.id;
for (const auto &s : p.states) {
if (stateCoeffs.count(s.name)) {
mCoefficients.emplace(s.id, stateCoeffs.at(s.name));
}
}
break;
}
}
return (mCoefficients.size() == stateCoeffs.size());
}
bool PowerStatsEnergyConsumer::addAttribution(std::unordered_map<int32_t, std::string> paths,
std::map<std::string, int32_t> stateCoeffs) {
mAttrInfoPath = paths;
if (paths.count(UID_TIME_IN_STATE)) {
mEnergyAttribution = PowerStatsEnergyAttribution();
AttributionStats attrStats = mEnergyAttribution.getAttributionStats(paths);
if (attrStats.uidTimeInStats.empty() || attrStats.uidTimeInStateNames.empty()) {
LOG(ERROR) << "Missing uid_time_in_state";
return false;
}
// stateCoeffs should not blocking energy consumer to return power meter
// so just handle this in getEnergyConsumed()
if (stateCoeffs.empty()) {
return true;
}
int32_t stateId = 0;
for (const auto &stateName : attrStats.uidTimeInStateNames) {
if (stateCoeffs.count(stateName)) {
// When uid_time_in_state is not the only type of attribution,
// should condider to separate the coefficients just for attribution.
mCoefficients.emplace(stateId, stateCoeffs.at(stateName));
}
stateId++;
}
}
return (mCoefficients.size() == stateCoeffs.size());
}
std::optional<EnergyConsumerResult> PowerStatsEnergyConsumer::getEnergyConsumed() {
int64_t totalEnergyUWs = 0;
int64_t timestampMs = 0;
if (!mChannelIds.empty()) {
std::vector<EnergyMeasurement> measurements;
if (mPowerStats->readEnergyMeter(mChannelIds, &measurements).isOk()) {
for (const auto &m : measurements) {
totalEnergyUWs += m.energyUWs;
timestampMs = m.timestampMs;
}
} else {
LOG(ERROR) << "Failed to read energy meter";
return {};
}
}
std::vector<EnergyConsumerAttribution> attribution;
if (!mCoefficients.empty()) {
if (mWithAttribution) {
AttributionStats attrStats = mEnergyAttribution.getAttributionStats(mAttrInfoPath);
if (attrStats.uidTimeInStats.empty() || attrStats.uidTimeInStateNames.empty()) {
LOG(ERROR) << "Missing uid_time_in_state";
return {};
}
int64_t totalRelativeEnergyUWs = 0;
for (const auto &uidTimeInStat : attrStats.uidTimeInStats) {
int64_t uidEnergyUWs = 0;
for (int id = 0; id < uidTimeInStat.second.size(); id++) {
if (mCoefficients.count(id)) {
int64_t d_time_in_state = uidTimeInStat.second.at(id);
if (mUidTimeInStateSS.count(uidTimeInStat.first)) {
d_time_in_state -= mUidTimeInStateSS.at(uidTimeInStat.first).at(id);
}
uidEnergyUWs += mCoefficients.at(id) * d_time_in_state;
}
}
totalRelativeEnergyUWs += uidEnergyUWs;
EnergyConsumerAttribution attr = {
.uid = uidTimeInStat.first,
.energyUWs = uidEnergyUWs,
};
attribution.emplace_back(attr);
}
int64_t d_totalEnergyUWs = totalEnergyUWs - mTotalEnergySS;
float powerScale = 0;
if (totalRelativeEnergyUWs != 0) {
powerScale = static_cast<float>(d_totalEnergyUWs) / totalRelativeEnergyUWs;
}
for (auto &attr : attribution) {
attr.energyUWs = (int64_t)(attr.energyUWs * powerScale) +
(mUidEnergySS.count(attr.uid) ? mUidEnergySS.at(attr.uid) : 0);
mUidEnergySS[attr.uid] = attr.energyUWs;
}
mUidTimeInStateSS = attrStats.uidTimeInStats;
mTotalEnergySS = totalEnergyUWs;
} else {
std::vector<StateResidencyResult> results;
if (mPowerStats->getStateResidency({mPowerEntityId}, &results).isOk()) {
for (const auto &s : results[0].stateResidencyData) {
if (mCoefficients.count(s.id)) {
totalEnergyUWs += mCoefficients.at(s.id) * s.totalTimeInStateMs;
}
}
} else {
LOG(ERROR) << "Failed to get state residency";
return {};
}
}
}
return EnergyConsumerResult{.timestampMs = timestampMs,
.energyUWs = totalEnergyUWs,
.attribution = attribution};
}
std::string PowerStatsEnergyConsumer::getConsumerName() {
return kName;
}
} // namespace stats
} // namespace power
} // namespace hardware
} // namespace android
} // namespace aidl
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