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fixed latency test

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gabime 2018-07-09 23:55:17 +03:00
parent a776a774e1
commit 8baa8cf8ea
1 changed files with 3 additions and 13 deletions
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16
bench/latency.cpp
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@ -32,7 +32,7 @@ void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count
int main(int , char *[]) int main(int , char *[])
{ {
std::srand(std::time(nullptr)); // use current time as seed for random generator std::srand(std::time(nullptr)); // use current time as seed for random generator
int howmany = 50; int howmany = 10000;
int queue_size = howmany + 2; int queue_size = howmany + 2;
int threads = 10; int threads = 10;
int file_size = 30 * 1024 * 1024; int file_size = 30 * 1024 * 1024;
@ -91,12 +91,6 @@ int main(int , char *[])
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
void rand_sleep()
{
auto sleep_ms= std::chrono::milliseconds(std::rand() % 50);
std::this_thread::sleep_for(sleep_ms);
}
void bench(int howmany, std::shared_ptr<spdlog::logger> log) void bench(int howmany, std::shared_ptr<spdlog::logger> log)
{ {
@ -113,7 +107,6 @@ void bench(int howmany, std::shared_ptr<spdlog::logger> log)
log->info("Hello logger: msg number {}", i); log->info("Hello logger: msg number {}", i);
auto delta_nanos = chrono::duration_cast<nanoseconds>(high_resolution_clock::now() - start); auto delta_nanos = chrono::duration_cast<nanoseconds>(high_resolution_clock::now() - start);
total_nanos+= delta_nanos; total_nanos+= delta_nanos;
rand_sleep();
} }
auto avg = total_nanos.count()/howmany; auto avg = total_nanos.count()/howmany;
@ -129,20 +122,17 @@ void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count
cout << log->name() << "...\t\t" << flush; cout << log->name() << "...\t\t" << flush;
vector<thread> threads; vector<thread> threads;
nanoseconds::rep total_nanos = 0; std::atomic<nanoseconds::rep> total_nanos{0};
for (int t = 0; t < thread_count; ++t) for (int t = 0; t < thread_count; ++t)
{ {
threads.push_back(std::thread([&]() { threads.push_back(std::thread([&]() {
nanoseconds thr_total_nanos = nanoseconds::zero();
for (int j = 0; j < howmany / thread_count; j++) for (int j = 0; j < howmany / thread_count; j++)
{ {
auto start = high_resolution_clock::now(); auto start = high_resolution_clock::now();
log->info("Hello logger: msg number {}", j); log->info("Hello logger: msg number {}", j);
auto delta_nanos = chrono::duration_cast<nanoseconds>(high_resolution_clock::now() - start); auto delta_nanos = chrono::duration_cast<nanoseconds>(high_resolution_clock::now() - start);
thr_total_nanos+= delta_nanos; total_nanos+= delta_nanos.count();
rand_sleep();
} }
total_nanos+= thr_total_nanos.count();
})); }));
} }