de7a0d5160
Bug: 310094590 Test: vts-tradefed run vts -m VtsHalPowerStatsTargetTest Change-Id: Ib09e12bbfd45611e6f98822435b43752d53d7bb0 Signed-off-by: Darren Hsu <darrenhsu@google.com>
106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
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* Copyright (C) 2023 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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#include "TpuDvfsStateResidencyDataProvider.h"
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#include <android-base/logging.h>
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static const std::string ENTITY_NAME = "TPU-DVFS";
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace power {
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namespace stats {
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TpuDvfsStateResidencyDataProvider::TpuDvfsStateResidencyDataProvider(
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const std::string& path,
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std::vector<std::string> frequencies,
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uint64_t clockRate)
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: mPath(path), mFrequencies(std::move(frequencies)), mClockRate(clockRate) {}
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bool TpuDvfsStateResidencyDataProvider::getStateResidencies(
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std::unordered_map<std::string, std::vector<StateResidency>> *residencies) {
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// Using FILE* instead of std::ifstream for performance reasons
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std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(mPath.c_str(), "r"), fclose);
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if (!fp) {
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PLOG(ERROR) << "Failed to open file " << mPath;
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return false;
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}
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std::vector<StateResidency> stateResidencies;
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for (int i = 0; i < mFrequencies.size(); i++) {
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StateResidency s = {.id = i, .totalTimeInStateMs = 0};
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stateResidencies.push_back(s);
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}
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char *line = nullptr;
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size_t len = 0;
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std::istringstream ssLine;
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std::string split;
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int32_t lineIdx = 0;
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std::vector<int32_t> stateIdxMap;
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int32_t colIdx;
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std::vector<std::string>::const_iterator found;
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while (getline(&line, &len, fp.get()) != -1) {
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ssLine.clear();
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ssLine.str(line);
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colIdx = 0;
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for (std::string split; std::getline(ssLine, split, ' ');) {
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// Skip first column
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if (split.find(':') != std::string::npos)
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continue;
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if (lineIdx == 0) {
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// Build the state index map by first row
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split.erase(split.find_last_not_of(" \n\r\t") + 1);
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found = std::find(mFrequencies.begin(), mFrequencies.end(), split);
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if (found != mFrequencies.end()) {
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stateIdxMap.push_back(found - mFrequencies.begin());
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} else {
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PLOG(ERROR) << "TPU frequency " << split << " is not found in " << mPath;
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stateIdxMap.push_back(0);
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}
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} else {
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// Add up time in frequency per uid
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stateResidencies[stateIdxMap[colIdx]].totalTimeInStateMs +=
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std::atoll(split.c_str()) / mClockRate;
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}
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colIdx++;
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}
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lineIdx++;
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}
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residencies->emplace(ENTITY_NAME, stateResidencies);
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return true;
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}
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std::unordered_map<std::string, std::vector<State>> TpuDvfsStateResidencyDataProvider::getInfo() {
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std::vector<State> states;
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for (int32_t id = 0; id < mFrequencies.size(); id++) {
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State s =
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{.id = id, .name = std::to_string(std::atol(mFrequencies[id].c_str()) / 1000) + "MHz"};
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states.push_back(s);
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}
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return {{ENTITY_NAME, states}};
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}
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} // namespace stats
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} // namespace power
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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