Sorting 32 bit vs 64 bit integers: mini performance benchmark

IntSortSpeed-64vs32bit.cpp

TEST_CASE("IntSortSpeed-64vs32bit") {
    std::random_device rd;
    std::mt19937_64 mt(rd());
    std::uniform_int_distribution<uint32_t> int32Dist;
    int count = 100000000;
    std::vector<uint32_t> v32;
    v32.reserve(count);
    std::vector<uint64_t> v64;
    v64.reserve(count);
    StopWatch stopWatch;
    for (int i = 0; i < count; ++i) {
        uint32_t value = int32Dist(mt);
        v32.push_back(value);
        v64.push_back(value);
    }
    LOG_I("Created: %s", stopWatch.durationForLog().c_str());

    stopWatch.reset();
    std::sort(v32.begin(), v32.end());
    LOG_I("32: %s", stopWatch.durationForLog().c_str());

    stopWatch.reset();
    std::sort(v64.begin(), v64.end());
    LOG_I("64: %s", stopWatch.durationForLog().c_str());
}