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Diffstat (limited to 'guava-tests/benchmark/com/google/common/math/IntMathRoundingBenchmark.java')
-rw-r--r-- | guava-tests/benchmark/com/google/common/math/IntMathRoundingBenchmark.java | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/guava-tests/benchmark/com/google/common/math/IntMathRoundingBenchmark.java b/guava-tests/benchmark/com/google/common/math/IntMathRoundingBenchmark.java deleted file mode 100644 index 1bbefbe..0000000 --- a/guava-tests/benchmark/com/google/common/math/IntMathRoundingBenchmark.java +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Copyright (C) 2011 The Guava Authors - * - * 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.google.common.math; - -import static com.google.common.math.MathBenchmarking.ARRAY_MASK; -import static com.google.common.math.MathBenchmarking.ARRAY_SIZE; -import static com.google.common.math.MathBenchmarking.RANDOM_SOURCE; -import static com.google.common.math.MathBenchmarking.randomNonZeroBigInteger; -import static com.google.common.math.MathBenchmarking.randomPositiveBigInteger; - -import com.google.caliper.Param; -import com.google.caliper.Runner; -import com.google.caliper.SimpleBenchmark; -import com.google.common.math.IntMath; - -import java.math.RoundingMode; - -/** - * Benchmarks for the rounding methods of {@code IntMath}. - * - * @author Louis Wasserman - */ -public class IntMathRoundingBenchmark extends SimpleBenchmark { - private static final int[] positive = new int[ARRAY_SIZE]; - private static final int[] nonzero = new int[ARRAY_SIZE]; - private static final int[] ints = new int[ARRAY_SIZE]; - - @Override - protected void setUp() { - for (int i = 0; i < ARRAY_SIZE; i++) { - positive[i] = randomPositiveBigInteger(Integer.SIZE - 2).intValue(); - nonzero[i] = randomNonZeroBigInteger(Integer.SIZE - 2).intValue(); - ints[i] = RANDOM_SOURCE.nextInt(); - } - } - - @Param({"DOWN", "UP", "FLOOR", "CEILING", "HALF_EVEN", "HALF_UP", "HALF_DOWN"}) - RoundingMode mode; - - public int timeLog2(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.log2(positive[j], mode); - } - return tmp; - } - - public int timeLog10(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.log10(positive[j], mode); - } - return tmp; - } - - public int timeSqrt(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.sqrt(positive[j], mode); - } - return tmp; - } - - public int timeDivide(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.divide(ints[j], nonzero[j], mode); - } - return tmp; - } - - public static void main(String[] args) { - Runner.main(IntMathRoundingBenchmark.class, args); - } -} |