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-rw-r--r--src/bench/rollingbloom.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/bench/rollingbloom.cpp b/src/bench/rollingbloom.cpp
new file mode 100644
index 0000000000..73c02cf718
--- /dev/null
+++ b/src/bench/rollingbloom.cpp
@@ -0,0 +1,43 @@
+// Copyright (c) 2016 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <iostream>
+
+#include "bench.h"
+#include "bloom.h"
+#include "utiltime.h"
+
+static void RollingBloom(benchmark::State& state)
+{
+ CRollingBloomFilter filter(120000, 0.000001);
+ std::vector<unsigned char> data(32);
+ uint32_t count = 0;
+ uint32_t nEntriesPerGeneration = (120000 + 1) / 2;
+ uint32_t countnow = 0;
+ uint64_t match = 0;
+ while (state.KeepRunning()) {
+ count++;
+ data[0] = count;
+ data[1] = count >> 8;
+ data[2] = count >> 16;
+ data[3] = count >> 24;
+ if (countnow == nEntriesPerGeneration) {
+ int64_t b = GetTimeMicros();
+ filter.insert(data);
+ int64_t e = GetTimeMicros();
+ std::cout << "RollingBloom-refresh,1," << (e-b)*0.000001 << "," << (e-b)*0.000001 << "," << (e-b)*0.000001 << "\n";
+ countnow = 0;
+ } else {
+ filter.insert(data);
+ }
+ countnow++;
+ data[0] = count >> 24;
+ data[1] = count >> 16;
+ data[2] = count >> 8;
+ data[3] = count;
+ match += filter.contains(data);
+ }
+}
+
+BENCHMARK(RollingBloom);