Function runFindOps

cachelib/benchmarks/EventTrackerPerf.cpp:53–78

std::unique_ptr<LruAllocator> cache;

void runFindOps(std::shared_ptr<FakeWsaTracker> tracker) {
  BENCHMARK_SUSPEND {
    LruAllocator::Config config;

    config.setCacheSize(500ul * 1024ul * 1024ul); // 500 MB

    // 16 million buckets, 1 million locks
    LruAllocator::AccessConfig accessConfig{24 /* buckets power */,
                                            20 /* locks power */};
    config.setAccessConfig(accessConfig);
    config.configureChainedItems(accessConfig);

    if (tracker) {
      config.setEventTracker(std::move(tracker));
    }

    cache = std::make_unique<LruAllocator>(config);
    cache->addPool("default", cache->getCacheMemoryStats().ramCacheSize);

    auto hdl = cache->allocate(0, "my key", 100);
    for (int i = 0; i < 10; i++) {
      auto c = cache->allocateChainedItem(hdl, 100);
      cache->addChainedItem(hdl, std::move(c));
    }
    cache->insert(hdl);
  }

  for (int i = 0; i < 1'000'000; i++) {
    auto hdl = cache->find("my key");