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Removed CCheckQueueSpeed benchmark

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This benchmark's runtime was rather unpredictive on different machines, not really a useful benchmark.
This commit is contained in:
Martin Ankerl 2017-12-20 19:53:28 +01:00
parent 00721e69f8
commit 760af84072
1 changed files with 0 additions and 41 deletions
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41
src/bench/checkqueue.cpp
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@ -12,51 +12,11 @@
#include <random.h>
// This Benchmark tests the CheckQueue with the lightest
// weight Checks, so it should make any lock contention
// particularly visible
static const int MIN_CORES = 2;
static const size_t BATCHES = 101;
static const size_t BATCH_SIZE = 30;
static const int PREVECTOR_SIZE = 28;
static const unsigned int QUEUE_BATCH_SIZE = 128;
static void CCheckQueueSpeed(benchmark::State& state)
{
struct FakeJobNoWork {
bool operator()()
{
return true;
}
void swap(FakeJobNoWork& x){};
};
CCheckQueue<FakeJobNoWork> queue {QUEUE_BATCH_SIZE};
boost::thread_group tg;
for (auto x = 0; x < std::max(MIN_CORES, GetNumCores()); ++x) {
tg.create_thread([&]{queue.Thread();});
}
while (state.KeepRunning()) {
CCheckQueueControl<FakeJobNoWork> control(&queue);
// We call Add a number of times to simulate the behavior of adding
// a block of transactions at once.
std::vector<std::vector<FakeJobNoWork>> vBatches(BATCHES);
for (auto& vChecks : vBatches) {
vChecks.resize(BATCH_SIZE);
}
for (auto& vChecks : vBatches) {
// We can't make vChecks in the inner loop because we want to measure
// the cost of getting the memory to each thread and we might get the same
// memory
control.Add(vChecks);
}
// control waits for completion by RAII, but
// it is done explicitly here for clarity
control.Wait();
}
tg.interrupt_all();
tg.join_all();
}
// This Benchmark tests the CheckQueue with a slightly realistic workload,
// where checks all contain a prevector that is indirect 50% of the time
@ -99,5 +59,4 @@ static void CCheckQueueSpeedPrevectorJob(benchmark::State& state)
tg.interrupt_all();
tg.join_all();
}
BENCHMARK(CCheckQueueSpeed, 29000);
BENCHMARK(CCheckQueueSpeedPrevectorJob, 1400);