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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/benchmark.h"
#include "td/utils/common.h"
#include "td/utils/logging.h"
#include <cstdio>
#include <fstream>
#include <iostream>
#include <ostream>
#include <streambuf>
#include <string>
#include <unistd.h>
std::string create_tmp_file() {
#if TD_ANDROID
std::string name = "/data/local/tmp/large_file.txt";
unlink(name.c_str());
return name;
#else
char file_name[] = "largefileXXXXXX";
int fd = mkstemp(file_name);
if (fd == -1) {
perror("Can't cretate temporary file");
}
CHECK(fd != -1);
close(fd);
return file_name;
#endif
}
class IostreamWriteBench final : public td::Benchmark {
protected:
std::string file_name_;
std::ofstream stream;
static constexpr std::size_t BUFFER_SIZE = 1 << 20;
char buffer[BUFFER_SIZE];
public:
std::string get_description() const final {
return "ostream (to file, no buf, no flush)";
}
void start_up() final {
file_name_ = create_tmp_file();
stream.open(file_name_.c_str());
CHECK(stream.is_open());
// stream.rdbuf()->pubsetbuf(buffer, BUFFER_SIZE);
}
void run(int n) final {
for (int i = 0; i < n; i++) {
stream << "This is just for test" << 987654321 << '\n';
}
}
void tear_down() final {
stream.close();
unlink(file_name_.c_str());
}
};
class FILEWriteBench final : public td::Benchmark {
protected:
std::string file_name_;
FILE *file;
static constexpr std::size_t BUFFER_SIZE = 1 << 20;
char buffer[BUFFER_SIZE];
public:
std::string get_description() const final {
return "std::fprintf (to file, no buf, no flush)";
}
void start_up() final {
file_name_ = create_tmp_file();
file = fopen(file_name_.c_str(), "w");
// setvbuf(file, buffer, _IOFBF, BUFFER_SIZE);
}
void run(int n) final {
for (int i = 0; i < n; i++) {
std::fprintf(file, "This is just for test%d\n", 987654321);
// std::fflush(file);
}
}
void tear_down() final {
std::fclose(file);
unlink(file_name_.c_str());
}
};
#if TD_ANDROID
#include <android/log.h>
#define ALOG(...) __android_log_print(ANDROID_LOG_VERBOSE, "XXX", __VA_ARGS__)
class ALogWriteBench final : public td::Benchmark {
public:
std::string get_description() const final {
return "android_log";
}
void start_up() final {
}
void run(int n) final {
for (int i = 0; i < n; i++) {
ALOG("This is just for test%d\n", 987654321);
}
}
void tear_down() final {
}
};
#endif
class LogWriteBench final : public td::Benchmark {
protected:
std::string file_name_;
std::ofstream stream;
std::streambuf *old_buf;
static constexpr std::size_t BUFFER_SIZE = 1 << 20;
char buffer[BUFFER_SIZE];
public:
std::string get_description() const final {
return "td_log (slow in debug mode)";
}
void start_up() final {
file_name_ = create_tmp_file();
stream.open(file_name_.c_str());
CHECK(stream.is_open());
old_buf = std::cerr.rdbuf(stream.rdbuf());
}
void run(int n) final {
for (int i = 0; i < n; i++) {
LOG(DEBUG) << "This is just for test" << 987654321;
}
}
void tear_down() final {
stream.close();
unlink(file_name_.c_str());
std::cerr.rdbuf(old_buf);
}
};
int main() {
td::bench(LogWriteBench());
#if TD_ANDROID
td::bench(ALogWriteBench());
#endif
td::bench(IostreamWriteBench());
td::bench(FILEWriteBench());
}
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