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c515d266ec
std::chrono removes portability issues. Rather than storing doubles, store the untouched time_points. Then convert to nanoseconds for display. This allows for maximum precision, while keeping results comparable between differing hardware/operating systems. Also, display full nanosecond counts rather than sub-second floats.
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
// Copyright (c) 2016 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <iostream>
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#include "bench.h"
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#include "bloom.h"
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static void RollingBloom(benchmark::State& state)
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{
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CRollingBloomFilter filter(120000, 0.000001);
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std::vector<unsigned char> data(32);
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uint32_t count = 0;
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uint32_t nEntriesPerGeneration = (120000 + 1) / 2;
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uint32_t countnow = 0;
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uint64_t match = 0;
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while (state.KeepRunning()) {
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count++;
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data[0] = count;
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data[1] = count >> 8;
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data[2] = count >> 16;
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data[3] = count >> 24;
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if (countnow == nEntriesPerGeneration) {
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auto b = benchmark::clock::now();
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filter.insert(data);
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auto total = std::chrono::duration_cast<std::chrono::nanoseconds>(benchmark::clock::now() - b).count();
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std::cout << "RollingBloom-refresh,1," << total << "," << total << "," << total << "\n";
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countnow = 0;
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} else {
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filter.insert(data);
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}
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countnow++;
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data[0] = count >> 24;
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data[1] = count >> 16;
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data[2] = count >> 8;
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data[3] = count;
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match += filter.contains(data);
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}
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}
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BENCHMARK(RollingBloom);
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