107 lines
4.3 KiB
C++
107 lines
4.3 KiB
C++
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "powerhal-adaptivecpu"
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#define ATRACE_TAG (ATRACE_TAG_POWER | ATRACE_TAG_HAL)
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#include "Model.h"
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#include <android-base/logging.h>
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#include <utils/Trace.h>
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namespace aidl {
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namespace google {
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namespace hardware {
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namespace power {
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namespace impl {
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namespace pixel {
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bool ModelInput::SetCpuFreqiencies(
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const std::vector<CpuPolicyAverageFrequency> &cpuPolicyAverageFrequencies) {
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ATRACE_CALL();
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if (cpuPolicyAverageFrequencies.size() != cpuPolicyAverageFrequencyHz.size()) {
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LOG(ERROR) << "Received incorrect amount of CPU policy frequencies, expected "
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<< cpuPolicyAverageFrequencyHz.size() << ", received "
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<< cpuPolicyAverageFrequencies.size();
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return false;
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}
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int32_t previousPolicyId = -1;
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for (uint32_t i = 0; i < cpuPolicyAverageFrequencies.size(); i++) {
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if (previousPolicyId >= static_cast<int32_t>(cpuPolicyAverageFrequencies[i].policyId)) {
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LOG(ERROR) << "CPU frequencies weren't sorted by policy ID, found " << previousPolicyId
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<< " " << cpuPolicyAverageFrequencies[i].policyId;
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return false;
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}
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previousPolicyId = cpuPolicyAverageFrequencies[i].policyId;
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cpuPolicyAverageFrequencyHz[i] = cpuPolicyAverageFrequencies[i].averageFrequencyHz;
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}
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return true;
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}
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void ModelInput::LogToAtrace() const {
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if (!ATRACE_ENABLED()) {
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return;
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}
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ATRACE_CALL();
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for (int i = 0; i < cpuPolicyAverageFrequencyHz.size(); i++) {
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ATRACE_INT((std::string("ModelInput_frequency_") + std::to_string(i)).c_str(),
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static_cast<int>(cpuPolicyAverageFrequencyHz[i]));
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}
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for (int i = 0; i < cpuCoreIdleTimesPercentage.size(); i++) {
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ATRACE_INT((std::string("ModelInput_idle_") + std::to_string(i)).c_str(),
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static_cast<int>(cpuCoreIdleTimesPercentage[i] * 100));
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}
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ATRACE_INT("ModelInput_workDurations_averageDurationNs",
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workDurationFeatures.averageDuration.count());
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ATRACE_INT("ModelInput_workDurations_maxDurationNs", workDurationFeatures.maxDuration.count());
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ATRACE_INT("ModelInput_workDurations_numMissedDeadlines",
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workDurationFeatures.numMissedDeadlines);
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ATRACE_INT("ModelInput_workDurations_numDurations", workDurationFeatures.numDurations);
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ATRACE_INT("ModelInput_prevThrottle", (int)previousThrottleDecision);
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ATRACE_INT("ModelInput_device", static_cast<int>(device));
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}
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ThrottleDecision Model::Run(const std::deque<ModelInput> &modelInputs,
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const AdaptiveCpuConfig &config) {
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ATRACE_CALL();
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if (config.randomThrottleDecisionProbability > 0 &&
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mShouldRandomThrottleDistribution(mGenerator) < config.randomThrottleDecisionProbability) {
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std::uniform_int_distribution<uint32_t> optionDistribution(
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0, config.randomThrottleOptions.size() - 1);
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const ThrottleDecision throttleDecision =
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config.randomThrottleOptions[optionDistribution(mGenerator)];
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LOG(VERBOSE) << "Randomly overrided throttle decision: "
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<< static_cast<uint32_t>(throttleDecision);
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ATRACE_INT("AdaptiveCpu_randomThrottleDecision", static_cast<uint32_t>(throttleDecision));
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return throttleDecision;
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}
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ATRACE_INT("AdaptiveCpu_randomThrottleDecision", -1);
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return RunDecisionTree(modelInputs);
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}
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ThrottleDecision Model::RunDecisionTree(const std::deque<ModelInput> &modelInputs
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__attribute__((unused))) {
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ATRACE_CALL();
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#include "models/model.inc"
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}
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} // namespace pixel
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} // namespace impl
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} // namespace power
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} // namespace hardware
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} // namespace google
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} // namespace aidl
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