134ef9afca
Produced with: find base -name \"*.cc\" -o -name \"*.h\" -o -name \"*.mm\" | xargs clang-format -i base/third_party was then manually reset. R=pbos@chromium.org NO_IFTTT=Reformat only Bug: none Change-Id: Ie567eb767d41315fd60e8a17c6aee8a90ff6a3ec Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6117971 Commit-Queue: Peter Kasting <pkasting@chromium.org> Owners-Override: Peter Boström <pbos@chromium.org> Auto-Submit: Peter Kasting <pkasting@chromium.org> Reviewed-by: Peter Boström <pbos@chromium.org> Cr-Commit-Position: refs/heads/main@{#1400624}
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
// Copyright 2021 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/rand_util.h"
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#include "base/time/time.h"
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#include "testing/gtest/include/gtest/gtest.h"
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#include "testing/perf/perf_result_reporter.h"
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namespace base {
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namespace {
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constexpr char kMetricPrefix[] = "RandUtil.";
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constexpr char kThroughput[] = "throughput";
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} // namespace
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TEST(RandUtilPerfTest, RandUint64) {
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uint64_t inclusive_or = 0;
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constexpr int kIterations = 1e7;
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auto before = base::TimeTicks::Now();
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for (int iter = 0; iter < kIterations; iter++) {
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inclusive_or |= base::RandUint64();
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}
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auto after = base::TimeTicks::Now();
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perf_test::PerfResultReporter reporter(kMetricPrefix, "RandUint64");
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reporter.RegisterImportantMetric(kThroughput, "ns / iteration");
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uint64_t nanos_per_iteration = (after - before).InNanoseconds() / kIterations;
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reporter.AddResult("throughput", static_cast<size_t>(nanos_per_iteration));
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ASSERT_NE(inclusive_or, static_cast<uint64_t>(0));
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}
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TEST(RandUtilPerfTest, InsecureRandomRandUint64) {
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base::InsecureRandomGenerator gen;
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uint64_t inclusive_or = 0;
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constexpr int kIterations = 1e7;
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auto before = base::TimeTicks::Now();
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for (int iter = 0; iter < kIterations; iter++) {
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inclusive_or |= gen.RandUint64();
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}
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auto after = base::TimeTicks::Now();
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perf_test::PerfResultReporter reporter(kMetricPrefix,
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"InsecureRandomRandUint64");
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reporter.RegisterImportantMetric(kThroughput, "ns / iteration");
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uint64_t nanos_per_iteration = (after - before).InNanoseconds() / kIterations;
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reporter.AddResult("throughput", static_cast<size_t>(nanos_per_iteration));
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ASSERT_NE(inclusive_or, static_cast<uint64_t>(0));
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}
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} // namespace base
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