Mirror/spdlog
1
0
Fork 0
mirror of https://github.com/gabime/spdlog.git synced 2025-09-28 09:09:35 +08:00
Code Issues Packages Projects Releases Wiki Activity

Use fmt::string_view when logging a C string to avoid unnecessary copy

Browse Source
This commit is contained in:
Jerome Meyer
2018-10-17 10:40:41 -04:00
parent 4b66e94ecf
commit cb71fea0f6
10 changed files with 93 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
bench/bench.cpp
View File

@@ -29,6 +29,7 @@ using namespace utils;
void bench(int howmany, std::shared_ptr<spdlog::logger> log);
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count);
void bench_default_api(int howmany, std::shared_ptr<spdlog::logger> log);
void bench_c_string(int howmany, std::shared_ptr<spdlog::logger> log);
int main(int argc, char *argv[])
{
@@ -81,6 +82,21 @@ int main(int argc, char *argv[])
bench_default_api(howmany, spdlog::create<null_sink_st>("null_st"));
spdlog::info("**************************************************************");
spdlog::info("C-string. Single thread, {:n} iterations", howmany);
spdlog::info("**************************************************************");
basic_st = spdlog::basic_logger_st("basic_st", "logs/basic_cs.log", true);
bench_c_string(howmany, std::move(basic_st));
rotating_st = spdlog::rotating_logger_st("rotating_st", "logs/rotating_cs.log", file_size, rotating_files);
bench_c_string(howmany, std::move(rotating_st));
daily_st = spdlog::daily_logger_st("daily_st", "logs/daily_cs.log");
bench_c_string(howmany, std::move(daily_st));
bench_c_string(howmany, spdlog::create<null_sink_st>("null_st"));
spdlog::info("**************************************************************");
spdlog::info("{:n} threads sharing same logger, {:n} iterations", threads, howmany);
spdlog::info("**************************************************************");
@@ -173,3 +189,26 @@ void bench_default_api(int howmany, std::shared_ptr<spdlog::logger> log)
spdlog::set_default_logger(std::move(orig_default));
spdlog::info("{:<16} Elapsed: {:0.2f} secs {:>16n}/sec", log->name(), delta_d, int(howmany / delta_d));
}
void bench_c_string(int howmany, std::shared_ptr<spdlog::logger> log)
{
const char *msg = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus " \
"lacus placerat congue. Nulla egestas, mauris a tincidunt tempus, enim lectus volutpat mi, eu consequat sem " \
"libero nec massa. In dapibus ipsum a diam rhoncus gravida. Etiam non dapibus eros. Donec fringilla dui sed " \
"augue pretium, nec scelerisque est maximus. Nullam convallis, sem nec blandit maximus, nisi turpis ornare " \
"nisl, sit amet volutpat neque massa eu odio. Maecenas malesuada quam ex, posuere congue nibh turpis duis.";
using std::chrono::high_resolution_clock;
auto orig_default = spdlog::default_logger();
spdlog::set_default_logger(log);
auto start = high_resolution_clock::now();
for (auto i = 0; i < howmany; ++i)
{
spdlog::log(level::info, msg);
}
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::drop(log->name());
spdlog::set_default_logger(std::move(orig_default));
spdlog::info("{:<16} Elapsed: {:0.2f} secs {:>16n}/sec", log->name(), delta_d, int(howmany / delta_d));
}