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Merge afffbb1bc6 into merged_master (Bitcoin PR #19710)

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Andrew Poelstra 2020-11-28 17:46:45 +00:00
commit e9902f4810
2 changed files with 10 additions and 4 deletions
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9
src/bench/checkqueue.cpp
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@ -14,8 +14,6 @@
#include <vector>
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;
@ -26,6 +24,9 @@ static const unsigned int QUEUE_BATCH_SIZE = 128;
// and there is a little bit of work done between calls to Add.
static void CCheckQueueSpeedPrevectorJob(benchmark::Bench& bench)
{
// We shouldn't ever be running with the checkqueue on a single core machine.
if (GetNumCores() <= 1) return;
const ECCVerifyHandle verify_handle;
ECC_Start();
@ -44,7 +45,9 @@ static void CCheckQueueSpeedPrevectorJob(benchmark::Bench& bench)
};
CCheckQueue<PrevectorJob> queue {QUEUE_BATCH_SIZE};
boost::thread_group tg;
for (auto x = 0; x < std::max(MIN_CORES, GetNumCores()); ++x) {
// The main thread should be counted to prevent thread oversubscription, and
// to decrease the variance of benchmark results.
for (auto x = 0; x < GetNumCores() - 1; ++x) {
tg.create_thread([&]{queue.Thread();});
}