/* * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.querydsl.core.testutil; import com.google.common.base.Stopwatch; public final class Runner { private static final int WARMUP = 50000; private static final int BENCHMARK = 1000000; public static void run(String label, Benchmark benchmark) throws Exception { // warmup benchmark.run(WARMUP); System.err.print("- "); // run garbage collection System.gc(); System.err.print("- "); // perform timing Stopwatch stopwatch = Stopwatch.createStarted(); benchmark.run(BENCHMARK); System.err.println(label + " " + stopwatch.stop().toString()); } private Runner() { } }