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/*
* Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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 "benchmark/Result.h"
#include "benchmark/Phases.h"
#include "benchmark/CsvWriter.h"
#include <string>
#include <numeric>
#include <algorithm>
#include <cassert>
#include <cmath>
#include <iostream>
#include <iomanip>
namespace
{
template <class T, class R> R average(const std::vector<T> &v)
{
T sum = std::accumulate(v.begin(), v.end(), 0);
R avg = sum / static_cast<R>(v.size());
return avg;
}
double averageTimeMs(const benchmark::Phase &phase)
{
double avg_us = average<uint64_t, double>(phase.time);
return avg_us / 1e3;
}
double maxTimeMs(const benchmark::Phase &phase)
{
auto it = max_element(std::begin(phase.time), std::end(phase.time));
return *it / 1e3;
}
double minTimeMs(const benchmark::Phase &phase)
{
auto it = min_element(std::begin(phase.time), std::end(phase.time));
return *it / 1e3;
}
double geomeanTimeMs(const benchmark::Phase &phase)
{
double log_sum = 0.0;
for (auto t_us : phase.time)
{
log_sum += std::log(t_us / 1e3);
}
// Calculating geometric mean with logs
// "Geometric Mean of (V1, V2, ... Vn)"
// = (V1*V2*...*Vn)^(1/n)
// = exp(log((V1*V2*...*Vn)^(1/n)))
// = exp(log((V1*V2*...*Vn)/n)))
// = exp((log(V1) + log(V2) + ... + log(Vn))/n)
// = exp(_log_sum/num)
return std::exp(log_sum / static_cast<double>(phase.time.size()));
}
uint32_t averageMemoryKb(const benchmark::Phase &phase, int type)
{
return average<uint32_t, uint32_t>(phase.memory[type]);
}
uint32_t peakMemory(const uint32_t memory[benchmark::PhaseEnum::END_OF_PHASE]
[benchmark::MemoryType::END_OF_MEM_TYPE],
int type)
{
using namespace benchmark;
// tricky. handle WARMUP as EXECUTE
return std::max({memory[PhaseEnum::MODEL_LOAD][type], memory[PhaseEnum::PREPARE][type],
memory[PhaseEnum::WARMUP][type]});
}
void printResultTime(
const double time[benchmark::PhaseEnum::END_OF_PHASE][benchmark::FigureType::END_OF_FIG_TYPE])
{
using namespace benchmark;
std::cout << "===================================" << std::endl;
std::streamsize ss_precision = std::cout.precision();
std::cout << std::setprecision(3);
std::cout << std::fixed;
for (int i = PhaseEnum::MODEL_LOAD; i <= PhaseEnum::EXECUTE; ++i)
{
// Note. Tricky. Ignore WARMUP
if (i == PhaseEnum::WARMUP)
continue;
std::cout << std::setw(12) << std::left << getPhaseString(i) << " takes "
<< time[i][FigureType::MEAN] << " ms" << std::endl;
}
for (int j = FigureType::MEAN; j <= FigureType::GEOMEAN; ++j)
{
std::cout << "- " << std::setw(9) << std::left << getFigureTypeString(j) << ": "
<< time[PhaseEnum::EXECUTE][j] << " ms" << std::endl;
}
std::cout << std::setprecision(ss_precision);
std::cout << std::defaultfloat;
std::cout << "===================================" << std::endl;
}
void printResultMemory(const uint32_t memory[benchmark::PhaseEnum::END_OF_PHASE]
[benchmark::MemoryType::END_OF_MEM_TYPE])
{
using namespace benchmark;
for (int j = MemoryType::RSS; j <= MemoryType::PSS; ++j)
{
std::cout << getMemoryTypeString(j) << std::endl;
for (int i = PhaseEnum::MODEL_LOAD; i <= PhaseEnum::PREPARE; ++i)
{
std::cout << "- " << std::setw(12) << std::left << getPhaseString(i) << " takes "
<< memory[i][j] << " kb" << std::endl;
}
// Tricky. Handle WARMUP as EXECUTE
std::cout << "- " << std::setw(12) << std::left << getPhaseString(PhaseEnum::EXECUTE)
<< " takes " << memory[PhaseEnum::WARMUP][j] << " kb" << std::endl;
std::cout << "- " << std::setw(12) << std::left << "PEAK"
<< " takes " << peakMemory(memory, j) << " kb" << std::endl;
std::cout << "===================================" << std::endl;
}
}
} // namespace
namespace benchmark
{
Result::Result(const Phases &phases)
{
const auto option = phases.option();
{
for (int i = PhaseEnum::MODEL_LOAD; i <= PhaseEnum::PREPARE; ++i)
{
auto phase = phases.at(gPhaseStrings[i]);
time[i][FigureType::MEAN] = averageTimeMs(phase);
}
int i = PhaseEnum::EXECUTE;
auto exec_phase = phases.at(gPhaseStrings[i]);
time[i][FigureType::MEAN] = averageTimeMs(exec_phase);
time[i][FigureType::MAX] = maxTimeMs(exec_phase);
time[i][FigureType::MIN] = minTimeMs(exec_phase);
time[i][FigureType::GEOMEAN] = geomeanTimeMs(exec_phase);
}
if (option.memory)
{
print_memory = true;
for (int i = PhaseEnum::MODEL_LOAD; i < PhaseEnum::EXECUTE; ++i)
{
auto phase = phases.at(gPhaseStrings[i]);
for (int j = MemoryType::RSS; j <= MemoryType::PSS; ++j)
{
memory[i][j] = averageMemoryKb(phase, j);
}
}
}
}
void printResult(const Result &result)
{
printResultTime(result.time);
if (result.print_memory == false)
return;
printResultMemory(result.memory);
}
// TODO There are necessary for a kind of output data file so that it doesn't have to be csv file
// format.
void writeResult(const Result &result, const std::string &exec, const std::string &model,
const std::string &backend)
{
std::string csv_filename = exec + "-" + model + "-" + backend + ".csv";
// write to csv
CsvWriter writer(csv_filename);
writer << model << backend;
// TODO Add GEOMEAN
// time
auto time = result.time;
writer << time[PhaseEnum::MODEL_LOAD][FigureType::MEAN]
<< time[PhaseEnum::PREPARE][FigureType::MEAN] << time[PhaseEnum::EXECUTE][FigureType::MIN]
<< time[PhaseEnum::EXECUTE][FigureType::MAX] << time[PhaseEnum::EXECUTE][FigureType::MEAN];
// memory
auto memory = result.memory;
for (int j = MemoryType::RSS; j <= MemoryType::PSS; ++j)
{
// Tricky. Handle WARMUP as EXECUTE
for (int i = PhaseEnum::MODEL_LOAD; i <= PhaseEnum::WARMUP; ++i)
{
writer << memory[i][j];
}
writer << peakMemory(memory, j);
}
bool done = writer.done();
if (!done)
{
std::cerr << "Writing to " << csv_filename << " is failed" << std::endl;
}
}
} // namespace benchmark
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