git-subtree-dir: third_party/abseil_cpp git-subtree-mainline:ffb2ae54begit-subtree-split:768eb2ca28
		
			
				
	
	
		
			44 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| // Copyright 2018 The Abseil Authors.
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| //
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| // Licensed under the Apache License, Version 2.0 (the "License");
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| // you may not use this file except in compliance with the License.
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| // You may obtain a copy of the License at
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| //
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| //      https://www.apache.org/licenses/LICENSE-2.0
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| //
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| // Unless required by applicable law or agreed to in writing, software
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| // distributed under the License is distributed on an "AS IS" BASIS,
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| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| // See the License for the specific language governing permissions and
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| // limitations under the License.
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| 
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| #include "absl/synchronization/internal/graphcycles.h"
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| 
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| #include <algorithm>
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| #include <cstdint>
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| #include <vector>
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| 
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| #include "benchmark/benchmark.h"
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| #include "absl/base/internal/raw_logging.h"
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| 
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| namespace {
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| 
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| void BM_StressTest(benchmark::State& state) {
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|   const int num_nodes = state.range(0);
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|   while (state.KeepRunningBatch(num_nodes)) {
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|     absl::synchronization_internal::GraphCycles g;
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|     std::vector<absl::synchronization_internal::GraphId> nodes(num_nodes);
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|     for (int i = 0; i < num_nodes; i++) {
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|       nodes[i] = g.GetId(reinterpret_cast<void*>(static_cast<uintptr_t>(i)));
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|     }
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|     for (int i = 0; i < num_nodes; i++) {
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|       int end = std::min(num_nodes, i + 5);
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|       for (int j = i + 1; j < end; j++) {
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|         ABSL_RAW_CHECK(g.InsertEdge(nodes[i], nodes[j]), "");
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|       }
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|     }
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|   }
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| }
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| BENCHMARK(BM_StressTest)->Range(2048, 1048576);
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| 
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| }  // namespace
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