Function bench_populate

flowbench/BenchPopulate.cpp:34–51

// Benchmarks the population of a VectorRef<MutationRef>
template <bool emplace>
static void bench_populate(benchmark::State& state) {
	size_t items = state.range(0);
	size_t size = state.range(1);
	auto kv = getKV(size, size);
	while (state.KeepRunning()) {
		Standalone<VectorRef<MutationRef>> mutations;
		mutations.reserve(mutations.arena(), items);
		for (int i = 0; i < items; ++i) {
			if constexpr (emplace) {
				mutations.emplace_back_deep(mutations.arena(), MutationRef::Type::SetValue, kv.key, kv.value);
			} else {
				mutations.push_back_deep(mutations.arena(), MutationRef(MutationRef::Type::SetValue, kv.key, kv.value));
			}
		}
		benchmark::DoNotOptimize(mutations);
	}
	state.SetItemsProcessed(items * static_cast<long>(state.iterations()));
}

BENCHMARK_TEMPLATE(bench_populate, EMPLACE_BACK)->Ranges({ { 1, 1 << 20 }, { 1, 512 } })->ReportAggregatesOnly(true);
BENCHMARK_TEMPLATE(bench_populate, PUSH_BACK)->Ranges({ { 1, 1 << 20 }, { 1, 512 } })->ReportAggregatesOnly(true);