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Diffstat (limited to 'guava-tests/benchmark/com/google/common/math/DoubleMathBenchmark.java')
-rw-r--r-- | guava-tests/benchmark/com/google/common/math/DoubleMathBenchmark.java | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/guava-tests/benchmark/com/google/common/math/DoubleMathBenchmark.java b/guava-tests/benchmark/com/google/common/math/DoubleMathBenchmark.java deleted file mode 100644 index 12e24a3..0000000 --- a/guava-tests/benchmark/com/google/common/math/DoubleMathBenchmark.java +++ /dev/null @@ -1,90 +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.randomDouble; -import static com.google.common.math.MathBenchmarking.randomPositiveDouble; - -import com.google.caliper.Runner; -import com.google.caliper.SimpleBenchmark; - -/** - * Tests for the non-rounding methods of {@code DoubleMath}. - * - * @author Louis Wasserman - */ -public class DoubleMathBenchmark extends SimpleBenchmark { - private static final double[] positiveDoubles = new double[ARRAY_SIZE]; - private static final int[] factorials = new int[ARRAY_SIZE]; - private static final double [] doubles = new double[ARRAY_SIZE]; - - @Override - protected void setUp() { - for (int i = 0; i < ARRAY_SIZE; i++) { - positiveDoubles[i] = randomPositiveDouble(); - doubles[i] = randomDouble(Long.SIZE); - factorials[i] = RANDOM_SOURCE.nextInt(100); - } - } - - public long timeLog2(int reps) { - long tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += Double.doubleToRawLongBits(DoubleMath.log2(positiveDoubles[j])); - } - return tmp; - } - - public long timeFactorial(int reps) { - long tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - tmp += Double.doubleToRawLongBits(DoubleMath.factorial(factorials[j])); - } - return tmp; - } - - public int timeIsMathematicalInteger(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - if (DoubleMath.isMathematicalInteger(doubles[j])) { - tmp++; - } - } - return tmp; - } - - public int timeIsPowerOfTwo(int reps) { - int tmp = 0; - for (int i = 0; i < reps; i++) { - int j = i & ARRAY_MASK; - if (DoubleMath.isPowerOfTwo(doubles[j])) { - tmp++; - } - } - return tmp; - } - - public static void main(String[] args) { - Runner.main(DoubleMathBenchmark.class, args); - } -} |