test/nmea/Benchmark_nmea_checksum.cpp

   1 #include <benchmark/benchmark_api.h>
   2 #include <marnav/nmea/checksum.hpp>
   3
   4 namespace
   5 {
   6 // Baseline implementation.
   7 static std::string checksum_to_string__v0(uint8_t sum)
   8 {
   9         char buf[8];
  10         snprintf(buf, sizeof(buf), "%02X", sum);
  11         return buf;
  12 }
  13 }
  14
  15 static void Benchmark_nmea_checksum_to_string_v0(benchmark::State & state)
  16 {
  17         std::string result;
  18         while (state.KeepRunning()) {
  19                 result = checksum_to_string__v0(state.range_x());
  20                 benchmark::DoNotOptimize(result);
  21         }
  22 }
  23
  24 BENCHMARK(Benchmark_nmea_checksum_to_string_v0)->Range(0x00, 0xff);
  25
  26 static void Benchmark_nmea_checksum_to_string(benchmark::State & state)
  27 {
  28         std::string result;
  29         while (state.KeepRunning()) {
  30                 result = marnav::nmea::checksum_to_string(state.range_x());
  31                 benchmark::DoNotOptimize(result);
  32         }
  33 }
  34
  35 BENCHMARK(Benchmark_nmea_checksum_to_string)->Range(0x00, 0xff);
  36
  37 BENCHMARK_MAIN()