1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <memory>
#include "benchmark/benchmark.h"
static void BM_SharedPtrCreateDestroy(benchmark::State& st) {
while (st.KeepRunning()) {
auto sp = std::make_shared<int>(42);
benchmark::DoNotOptimize(sp.get());
}
}
BENCHMARK(BM_SharedPtrCreateDestroy);
static void BM_SharedPtrIncDecRef(benchmark::State& st) {
auto sp = std::make_shared<int>(42);
benchmark::DoNotOptimize(sp.get());
while (st.KeepRunning()) {
std::shared_ptr<int> sp2(sp);
benchmark::ClobberMemory();
}
}
BENCHMARK(BM_SharedPtrIncDecRef);
static void BM_WeakPtrIncDecRef(benchmark::State& st) {
auto sp = std::make_shared<int>(42);
benchmark::DoNotOptimize(sp.get());
while (st.KeepRunning()) {
std::weak_ptr<int> wp(sp);
benchmark::ClobberMemory();
}
}
BENCHMARK(BM_WeakPtrIncDecRef);
BENCHMARK_MAIN();
|
