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