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-rw-r--r--guava-tests/benchmark/com/google/common/hash/HashFunctionBenchmark.java87
1 files changed, 0 insertions, 87 deletions
diff --git a/guava-tests/benchmark/com/google/common/hash/HashFunctionBenchmark.java b/guava-tests/benchmark/com/google/common/hash/HashFunctionBenchmark.java
deleted file mode 100644
index 92a8cf3..0000000
--- a/guava-tests/benchmark/com/google/common/hash/HashFunctionBenchmark.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2012 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.hash;
-
-import com.google.caliper.Param;
-import com.google.caliper.Runner;
-import com.google.caliper.SimpleBenchmark;
-import com.google.common.hash.HashFunction;
-import com.google.common.hash.Hashing;
-
-import java.util.Random;
-
-/**
- * Benchmarks for comparing the various {@link HashFunction functions} that we provide.
- *
- * <p>Parameters for the benchmark are:
- * <ul>
- * <li>size: The length of the byte array to hash.
- * </ul>
- *
- * @author Kurt Alfred Kluever
- */
-public class HashFunctionBenchmark extends SimpleBenchmark {
-
- // Use a constant seed for all of the benchmarks to ensure apples to apples comparisons.
- private static final int RANDOM_SEED = new Random().nextInt();
-
- @Param({"10", "1000", "100000", "1000000"})
- private int size;
-
- private byte[] testBytes;
-
- @Override public void setUp() {
- testBytes = new byte[size];
- new Random(RANDOM_SEED).nextBytes(testBytes);
- }
-
- public int timeMurmur32HashFunction(int reps) {
- return runHashFunction(reps, Hashing.murmur3_32());
- }
-
- public int timeMurmur128HashFunction(int reps) {
- return runHashFunction(reps, Hashing.murmur3_128());
- }
-
- public int timeMd5HashFunction(int reps) {
- return runHashFunction(reps, Hashing.md5());
- }
-
- public int timeSha1HashFunction(int reps) {
- return runHashFunction(reps, Hashing.sha1());
- }
-
- public int timeSha256HashFunction(int reps) {
- return runHashFunction(reps, Hashing.sha256());
- }
-
- public int timeSha512HashFunction(int reps) {
- return runHashFunction(reps, Hashing.sha512());
- }
-
- private int runHashFunction(int reps, HashFunction hashFunction) {
- int result = 37;
- for (int i = 0; i < reps; i++) {
- result ^= hashFunction.hashBytes(testBytes).asInt();
- }
- return result;
- }
-
- public static void main(String[] args) {
- Runner.main(HashFunctionBenchmark.class, args);
- }
-}