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Diffstat (limited to 'guava-tests/benchmark/com/google/common/math/IntMathBenchmark.java')
-rw-r--r-- | guava-tests/benchmark/com/google/common/math/IntMathBenchmark.java | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/guava-tests/benchmark/com/google/common/math/IntMathBenchmark.java b/guava-tests/benchmark/com/google/common/math/IntMathBenchmark.java deleted file mode 100644 index 9f439b4..0000000 --- a/guava-tests/benchmark/com/google/common/math/IntMathBenchmark.java +++ /dev/null @@ -1,103 +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.randomExponent; -import static com.google.common.math.MathBenchmarking.randomNonNegativeBigInteger; -import static com.google.common.math.MathBenchmarking.randomPositiveBigInteger; - -import com.google.caliper.Runner; -import com.google.caliper.SimpleBenchmark; -import com.google.common.math.IntMath; - -/** - * Benchmarks for the non-rounding methods of {@code IntMath}. - * - * @author Louis Wasserman - */ -public class IntMathBenchmark extends SimpleBenchmark { - private static int[] exponent = new int[ARRAY_SIZE]; - private static int[] factorial = new int[ARRAY_SIZE]; - private static int[] binomial = new int[ARRAY_SIZE]; - private static final int[] positive = new int[ARRAY_SIZE]; - private static final int[] nonnegative = 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++) { - exponent[i] = randomExponent(); - factorial[i] = RANDOM_SOURCE.nextInt(50); - binomial[i] = RANDOM_SOURCE.nextInt(factorial[i] + 1); - positive[i] = randomPositiveBigInteger(Integer.SIZE - 2).intValue(); - nonnegative[i] = randomNonNegativeBigInteger(Integer.SIZE - 2).intValue(); - ints[i] = RANDOM_SOURCE.nextInt(); - } - } - - public int timePow(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.pow(positive[j], exponent[j]); - } - return tmp; - } - - public int timeMod(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.mod(ints[j], positive[j]); - } - return tmp; - } - - public int timeGCD(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.gcd(nonnegative[j], positive[j]); - } - return tmp; - } - - public int timeFactorial(int reps){ - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.factorial(factorial[j]); - } - return tmp; - } - - public int timeBinomial(int reps){ - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += IntMath.binomial(factorial[j], binomial[j]); - } - return tmp; - } - - public static void main(String[] args) { - Runner.main(IntMathBenchmark.class, args); - } -} |