123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135 |
- // Copyright 2017 The Chromium 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 "base/android/orderfile/orderfile_instrumentation.h"
- #include <thread>
- #include "base/android/library_loader/anchor_functions.h"
- #include "base/strings/stringprintf.h"
- #include "base/time/time.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "testing/perf/perf_test.h"
- namespace base {
- namespace android {
- namespace orderfile {
- namespace {
- // Records |addresses_count| distinct addresses |iterations| times, in
- // |threads|.
- void RunBenchmark(int iterations, int addresses_count, int threads) {
- ResetForTesting();
- auto iterate = [iterations, addresses_count]() {
- for (int i = 0; i < iterations; i++) {
- for (size_t addr = kStartOfTextForTesting;
- addr < static_cast<size_t>(addresses_count); addr += sizeof(int)) {
- RecordAddressForTesting(addr);
- }
- }
- };
- if (threads != 1) {
- for (int i = 0; i < threads - 1; ++i)
- std::thread(iterate).detach();
- }
- auto tick = base::TimeTicks::Now();
- iterate();
- auto tock = base::TimeTicks::Now();
- double nanos = static_cast<double>((tock - tick).InNanoseconds());
- auto ns_per_call =
- nanos / (iterations * static_cast<double>(addresses_count));
- auto modifier =
- base::StringPrintf("_%d_%d_%d", iterations, addresses_count, threads);
- perf_test::PrintResult("RecordAddressCostPerCall", modifier, "", ns_per_call,
- "ns", true);
- }
- } // namespace
- class OrderfileInstrumentationTest : public ::testing::Test {
- // Any tests need to run ResetForTesting() when they start. Because this
- // perftest is built with instrumentation enabled, all code including
- // ::testing::Test is instrumented. If ResetForTesting() is called earlier,
- // for example in setUp(), any test harness code between setUp() and the
- // actual test will change the instrumentation offset record in unpredictable
- // ways and make these tests unreliable.
- };
- TEST_F(OrderfileInstrumentationTest, RecordOffset) {
- ResetForTesting();
- size_t first = 1234, second = 1456;
- RecordAddressForTesting(first);
- RecordAddressForTesting(second);
- RecordAddressForTesting(first); // No duplicates.
- RecordAddressForTesting(first + 1); // 4 bytes granularity.
- Disable();
- auto reached = GetOrderedOffsetsForTesting();
- EXPECT_EQ(2UL, reached.size());
- EXPECT_EQ(first - kStartOfTextForTesting, reached[0]);
- EXPECT_EQ(second - kStartOfTextForTesting, reached[1]);
- }
- TEST_F(OrderfileInstrumentationTest, RecordingStops) {
- ResetForTesting();
- size_t first = 1234, second = 1456, third = 1789;
- RecordAddressForTesting(first);
- RecordAddressForTesting(second);
- Disable();
- RecordAddressForTesting(third);
- auto reached = GetOrderedOffsetsForTesting();
- ASSERT_EQ(2UL, reached.size());
- ASSERT_EQ(first - kStartOfTextForTesting, reached[0]);
- ASSERT_EQ(second - kStartOfTextForTesting, reached[1]);
- }
- TEST_F(OrderfileInstrumentationTest, OutOfBounds) {
- ResetForTesting();
- EXPECT_DEATH(RecordAddressForTesting(kEndOfTextForTesting + 100), "");
- EXPECT_DEATH(RecordAddressForTesting(kStartOfTextForTesting - 100), "");
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_10_10000) {
- RunBenchmark(10, 10000, 1);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_100_10000) {
- RunBenchmark(100, 10000, 1);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_10_100000) {
- RunBenchmark(10, 100000, 1);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_100_100000) {
- RunBenchmark(100, 100000, 1);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_1000_100000_2) {
- RunBenchmark(1000, 100000, 2);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_1000_100000_3) {
- RunBenchmark(1000, 100000, 3);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_1000_100000_4) {
- RunBenchmark(1000, 100000, 4);
- }
- TEST(OrderfileInstrumentationPerfTest, RecordAddress_1000_100000_6) {
- RunBenchmark(1000, 100000, 6);
- }
- } // namespace orderfile
- } // namespace android
- } // namespace base
- // Custom runner implementation since base's one requires JNI on Android.
- int main(int argc, char** argv) {
- testing::InitGoogleTest(&argc, argv);
- return RUN_ALL_TESTS();
- }
|