blob: 7b060c70eef05ddfdf6e9eb0c225c072330076f8 (
plain)
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
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright 2020 The gVisor Authors.
//
// 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 <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#include "gtest/gtest.h"
#include "benchmark/benchmark.h"
#include "test/util/logging.h"
#include "test/util/temp_path.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
void BM_Write(benchmark::State& state) {
auto f = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(Open(f.path(), O_WRONLY));
const int size = state.range(0);
std::vector<char> buf(size);
RandomizeBuffer(buf.data(), size);
for (auto _ : state) {
TEST_CHECK(PwriteFd(fd.get(), buf.data(), size, 0) == size);
}
state.SetBytesProcessed(static_cast<int64_t>(size) *
static_cast<int64_t>(state.iterations()));
}
BENCHMARK(BM_Write)->Range(1, 1 << 26)->UseRealTime();
} // namespace
} // namespace testing
} // namespace gvisor
|
