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) (#42683) Signed-off-by: PengFei Li <[email protected]>
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| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // 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 | ||
| // | ||
| // https://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. | ||
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| #include <bvar/bvar.h> | ||
| #include <gtest/gtest.h> | ||
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| #include <atomic> | ||
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| #include "util/metrics.h" | ||
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| namespace starrocks { | ||
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| const size_t OPS_PER_THREAD = 500000; | ||
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| static void* thread_counter(void* arg) { | ||
| bvar::Adder<uint64_t>* reducer = (bvar::Adder<uint64_t>*)arg; | ||
| butil::Timer timer; | ||
| timer.start(); | ||
| for (size_t i = 0; i < OPS_PER_THREAD; ++i) { | ||
| (*reducer) << 2; | ||
| } | ||
| timer.stop(); | ||
| return (void*)(timer.n_elapsed()); | ||
| } | ||
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| void* add_atomic(void* arg) { | ||
| butil::atomic<uint64_t>* counter = (butil::atomic<uint64_t>*)arg; | ||
| butil::Timer timer; | ||
| timer.start(); | ||
| for (size_t i = 0; i < OPS_PER_THREAD / 100; ++i) { | ||
| counter->fetch_add(2, butil::memory_order_relaxed); | ||
| } | ||
| timer.stop(); | ||
| return (void*)(timer.n_elapsed()); | ||
| } | ||
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| static long start_perf_test_with_atomic(size_t num_thread) { | ||
| butil::atomic<uint64_t> counter(0); | ||
| pthread_t threads[num_thread]; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| pthread_create(&threads[i], nullptr, &add_atomic, (void*)&counter); | ||
| } | ||
| long totol_time = 0; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| void* ret; | ||
| pthread_join(threads[i], &ret); | ||
| totol_time += (long)ret; | ||
| } | ||
| long avg_time = totol_time / (OPS_PER_THREAD / 100 * num_thread); | ||
| EXPECT_EQ(2ul * num_thread * OPS_PER_THREAD / 100, counter.load()); | ||
| return avg_time; | ||
| } | ||
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| static long start_perf_test_with_adder(size_t num_thread) { | ||
| bvar::Adder<uint64_t> reducer; | ||
| EXPECT_TRUE(reducer.valid()); | ||
| pthread_t threads[num_thread]; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| pthread_create(&threads[i], nullptr, &thread_counter, (void*)&reducer); | ||
| } | ||
| long totol_time = 0; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| void* ret = nullptr; | ||
| pthread_join(threads[i], &ret); | ||
| totol_time += (long)ret; | ||
| } | ||
| long avg_time = totol_time / (OPS_PER_THREAD * num_thread); | ||
| EXPECT_EQ(2ul * num_thread * OPS_PER_THREAD, reducer.get_value()); | ||
| return avg_time; | ||
| } | ||
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| static void* core_local_counter(void* arg) { | ||
| CoreLocalCounter<int64_t>* counter = (CoreLocalCounter<int64_t>*)arg; | ||
| butil::Timer timer; | ||
| timer.start(); | ||
| for (size_t i = 0; i < OPS_PER_THREAD; ++i) { | ||
| counter->increment(2); | ||
| } | ||
| timer.stop(); | ||
| return (void*)(timer.n_elapsed()); | ||
| } | ||
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| static long start_perf_test_with_core_local(size_t num_thread) { | ||
| CoreLocalCounter<int64_t> counter(MetricUnit::NOUNIT); | ||
| pthread_t threads[num_thread]; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| pthread_create(&threads[i], nullptr, &core_local_counter, (void*)&counter); | ||
| } | ||
| long totol_time = 0; | ||
| for (size_t i = 0; i < num_thread; ++i) { | ||
| void* ret = nullptr; | ||
| pthread_join(threads[i], &ret); | ||
| totol_time += (long)ret; | ||
| } | ||
| long avg_time = totol_time / (OPS_PER_THREAD * num_thread); | ||
| EXPECT_EQ(2ul * num_thread * OPS_PER_THREAD, counter.value()); | ||
| return avg_time; | ||
| } | ||
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| // Compare the performance among bvar, atomic and CoreLocalCounter. | ||
| // You should build the test with BUILD_TYPE=release. The way to test | ||
| // is same as that of brpc https://github.com/apache/brpc/blob/1.3.0/test/bvar_reducer_unittest.cpp#L124 | ||
| TEST(CoreLocalCounterTest, DISABLED_test_perf) { | ||
| std::ostringstream oss; | ||
| for (size_t i = 1; i <= 24; ++i) { | ||
| oss << i << '\t' << start_perf_test_with_adder(i) << '\n'; | ||
| } | ||
| LOG(INFO) << "Adder performance:\n" << oss.str(); | ||
| oss.str(""); | ||
| for (size_t i = 1; i <= 24; ++i) { | ||
| oss << i << '\t' << start_perf_test_with_core_local(i) << '\n'; | ||
| } | ||
| LOG(INFO) << "CoreLocal performance:\n" << oss.str(); | ||
| oss.str(""); | ||
| for (size_t i = 1; i <= 24; ++i) { | ||
| oss << i << '\t' << start_perf_test_with_atomic(i) << '\n'; | ||
| } | ||
| LOG(INFO) << "Atomic performance:\n" << oss.str(); | ||
| } | ||
|
|
||
| } // namespace starrocks |
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