bionic/tests/benchmark.h
Elliott Hughes 7be369d4c6 Simple google3-compatible benchmarking.
Based on our open-source RE2 benchmarking code.

Includes benchmarks for a handful of <string.h> functions.

Change-Id: I30eb70d25dbf4ad5f2ca44976a8ce3b1ff7dad01
2012-11-08 15:37:43 -08:00

60 lines
1.5 KiB
C++

/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <vector>
namespace testing {
class Benchmark {
public:
Benchmark(const char* name, void (*fn)(int)) {
Register(name, fn, NULL);
}
Benchmark(const char* name, void (*fn_range)(int, int)) {
Register(name, NULL, fn_range);
}
Benchmark* Arg(int x);
bool ShouldRun(int argc, char* argv[]);
void Run();
private:
const char* name_;
void (*fn_)(int);
void (*fn_range_)(int, int);
std::vector<int> args_;
void Register(const char* name, void (*fn)(int), void (*fn_range)(int, int));
void RunRepeatedlyWithArg(int iterations, int arg);
void RunWithArg(int arg);
};
} // namespace testing
void SetBenchmarkBytesProcessed(int64_t);
void StopBenchmarkTiming();
void StartBenchmarkTiming();
#define BENCHMARK(f) \
static ::testing::Benchmark* _benchmark_##f __attribute__((unused)) = \
(new ::testing::Benchmark(#f, f))