mirror of
https://github.com/fmtlib/fmt.git
synced 2024-11-22 10:30:05 +00:00
26 lines
764 B
C++
26 lines
764 B
C++
// A quick and dirty performance test.
|
|
// For actual benchmarks see https://github.com/fmtlib/format-benchmark.
|
|
|
|
#include <atomic>
|
|
#include <chrono>
|
|
#include <iterator>
|
|
|
|
#include "fmt/format.h"
|
|
|
|
int main() {
|
|
const int n = 10000000;
|
|
|
|
auto start = std::chrono::steady_clock::now();
|
|
for (int iteration = 0; iteration < n; ++iteration) {
|
|
auto buf = fmt::memory_buffer();
|
|
fmt::format_to(std::back_inserter(buf),
|
|
"Hello, {}. The answer is {} and {}.", 1, 2345, 6789);
|
|
}
|
|
std::atomic_signal_fence(std::memory_order_acq_rel); // Clobber memory.
|
|
auto end = std::chrono::steady_clock::now();
|
|
|
|
// Print time in milliseconds.
|
|
std::chrono::duration<double> duration = end - start;
|
|
fmt::print("{:.1f}\n", duration.count() * 1000);
|
|
}
|