1 /* 2 * Copyright (C) 2011 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package examples; 18 19 import com.google.caliper.AfterExperiment; 20 import com.google.caliper.BeforeExperiment; 21 import com.google.caliper.Benchmark; 22 import com.google.caliper.Param; 23 import com.google.caliper.api.SkipThisScenarioException; 24 import com.google.caliper.api.VmOptions; 25 import com.google.caliper.util.ShortDuration; 26 27 import java.math.BigDecimal; 28 29 @VmOptions("-server") 30 public class DemoBenchmark { 31 @Param({"abc", "def", "xyz"}) String string; 32 @Param({"1", "2"}) int number; 33 @Param Foo foo; 34 35 @Param({"0.00", "123.45"}) BigDecimal money; 36 @Param({"1ns", "2 minutes"}) ShortDuration duration; 37 38 enum Foo { 39 FOO, BAR, BAZ, QUX; 40 } 41 42 DemoBenchmark() { 43 // System.out.println("I should not do this."); 44 } 45 46 @BeforeExperiment void setUp() throws Exception { 47 if (string.equals("abc") && number == 1) { 48 throw new SkipThisScenarioException(); 49 } 50 } 51 52 @Benchmark int something(int reps) { 53 int dummy = 0; 54 for (int i = 0; i < reps; i++) { 55 dummy += i; 56 } 57 return dummy; 58 } 59 60 @Benchmark int somethingElse(int reps) { 61 int dummy = 0; 62 for (int i = 0; i < reps; i++) { 63 dummy -= i; 64 } 65 return dummy; 66 } 67 68 @AfterExperiment void tearDown() throws Exception { 69 // System.out.println("Hey, I'm tearing up the joint."); 70 } 71 } 72
