prometheus-cpp/core/benchmarks/counter_bench.cc

#include <benchmark/benchmark.h>

#include <string>

#include "prometheus/counter.h"
#include "prometheus/family.h"
#include "prometheus/registry.h"

static void BM_Counter_Increment(benchmark::State& state) {
  using prometheus::BuildCounter;
  using prometheus::Counter;
  using prometheus::Registry;
  Registry registry;
  auto& counter_family =
      BuildCounter().Name("benchmark_counter").Help("").Register(registry);
  auto& counter = counter_family.Add({});

  while (state.KeepRunning()) counter.Increment();
}
BENCHMARK(BM_Counter_Increment);

static void BM_Counter_Collect(benchmark::State& state) {
  using prometheus::BuildCounter;
  using prometheus::Counter;
  using prometheus::Registry;
  Registry registry;
  auto& counter_family =
      BuildCounter().Name("benchmark_counter").Help("").Register(registry);
  auto& counter = counter_family.Add({});

  while (state.KeepRunning()) {
    benchmark::DoNotOptimize(counter.Collect());
  };
}
BENCHMARK(BM_Counter_Collect);