/* * Copyright (C) 2014 The Android Open Source Project * * 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 android.util; import com.google.caliper.Param; import com.google.caliper.Runner; import com.google.caliper.SimpleBenchmark; import android.util.FloatMath; public class FloatMathBenchmark extends SimpleBenchmark { public float timeFloatMathCeil(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.ceil(100.123f); } return f; } public float timeFloatMathCeil_math(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += (float) Math.ceil(100.123f); } return f; } public float timeFloatMathCos(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.cos(100.123f); } return f; } public float timeFloatMathExp(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.exp(100.123f); } return f; } public float timeFloatMathFloor(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.floor(100.123f); } return f; } public float timeFloatMathHypot(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.hypot(100.123f, 100.123f); } return f; } public float timeFloatMathPow(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.pow(10.123f, 10.123f); } return f; } public float timeFloatMathSin(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.sin(100.123f); } return f; } public float timeFloatMathSqrt(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += FloatMath.sqrt(100.123f); } return f; } public float timeFloatMathSqrt_math(int reps) { // Keep an answer so we don't optimize the method call away. float f = 0.0f; for (int i = 0; i < reps; i++) { f += (float) Math.sqrt(100.123f); } return f; } }