Function BitmapUInt64Reader

cpp/src/arrow/util/bit_util_benchmark.cc:342–360

}

static void BitmapUInt64Reader(benchmark::State& state) {
  const int64_t nbytes = state.range(0);
  std::shared_ptr<Buffer> buffer = CreateRandomBuffer(nbytes);

  const int64_t num_bits = nbytes * 8;
  const uint8_t* bitmap = buffer->data();

  for (auto _ : state) {
    {
      internal::BitmapUInt64Reader reader(bitmap, 0, num_bits);
      uint64_t total = 0;
      for (int64_t i = 0; i < num_bits; i += 64) {
        total += reader.NextWord();
      }
      benchmark::DoNotOptimize(total);
    }
  }
  state.SetBytesProcessed(state.iterations() * nbytes);
}

static void BitRunReader(benchmark::State& state) {
  BenchmarkBitRunReader<internal::BitRunReader>(state, state.range(0));