| // Copyright 2022 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <time.h> |
| |
| #include <perftest/perftest.h> |
| |
| namespace { |
| |
| // Performance test for clock_gettime()+CLOCK_MONOTONIC. This is the |
| // main standard timer interface with nanosecond resolution on POSIX |
| // systems, including Linux. This interface is worth testing because |
| // it is commonly used outside of Fuchsia. |
| bool ClockGettimeMonotonic() { |
| timespec ts; |
| ZX_ASSERT(clock_gettime(CLOCK_MONOTONIC, &ts) == 0); |
| perftest::DoNotOptimize(&ts); |
| return true; |
| } |
| |
| void RegisterTests() { |
| perftest::RegisterSimpleTest<ClockGettimeMonotonic>("ClockGettimeMonotonic"); |
| } |
| PERFTEST_CTOR(RegisterTests) |
| |
| } // namespace |
