"commons-rng-jmh" moved as sub-module of "commons-rng-examples".
Project: http://git-wip-us.apache.org/repos/asf/commons-rng/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-rng/commit/312abc0e Tree: http://git-wip-us.apache.org/repos/asf/commons-rng/tree/312abc0e Diff: http://git-wip-us.apache.org/repos/asf/commons-rng/diff/312abc0e Branch: refs/heads/master Commit: 312abc0ea3db9a6e16d92799c3329a65baef0dbd Parents: 2fdb522 Author: Gilles <er...@apache.org> Authored: Tue Feb 13 20:00:08 2018 +0100 Committer: Gilles <er...@apache.org> Committed: Tue Feb 13 20:00:08 2018 +0100 ---------------------------------------------------------------------- commons-rng-examples/examples-jmh/LICENSE.txt | 275 +++++++++++++++++++ commons-rng-examples/examples-jmh/NOTICE.txt | 5 + commons-rng-examples/examples-jmh/README.md | 105 +++++++ commons-rng-examples/examples-jmh/pom.xml | 127 +++++++++ .../commons/rng/jmh/GenerationPerformance.java | 194 +++++++++++++ .../distribution/NextGaussianPerformance.java | 68 +++++ .../jmh/distribution/SamplersPerformance.java | 264 ++++++++++++++++++ .../rng/jmh/distribution/package-info.java | 22 ++ .../apache/commons/rng/jmh/package-info.java | 27 ++ commons-rng-jmh/LICENSE.txt | 275 ------------------- commons-rng-jmh/NOTICE.txt | 5 - commons-rng-jmh/README.md | 105 ------- commons-rng-jmh/pom.xml | 129 --------- .../commons/rng/jmh/GenerationPerformance.java | 194 ------------- .../distribution/NextGaussianPerformance.java | 68 ----- .../jmh/distribution/SamplersPerformance.java | 264 ------------------ .../rng/jmh/distribution/package-info.java | 22 -- .../apache/commons/rng/jmh/package-info.java | 27 -- 18 files changed, 1087 insertions(+), 1089 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/LICENSE.txt ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/LICENSE.txt b/commons-rng-examples/examples-jmh/LICENSE.txt new file mode 100644 index 0000000..de777e4 --- /dev/null +++ b/commons-rng-examples/examples-jmh/LICENSE.txt @@ -0,0 +1,275 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You 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. +--> +<!--- + +======================================================================+ + |**** ****| + |**** THIS FILE IS GENERATED BY THE COMMONS BUILD PLUGIN ****| + |**** DO NOT EDIT DIRECTLY ****| + |**** ****| + +======================================================================+ + | TEMPLATE FILE: readme-md-template.md | + | commons-build-plugin/trunk/src/main/resources/commons-xdoc-templates | + +======================================================================+ + | | + | 1) Re-generate using: mvn commons:readme-md | + | | + | 2) Set the following properties in the component's pom: | + | - commons.componentid (required, alphabetic, lower case) | + | - commons.release.version (required) | + | | + | 3) Example Properties | + | | + | <properties> | + | <commons.componentid>math</commons.componentid> | + | <commons.release.version>1.2</commons.release.version> | + | </properties> | + | | + +======================================================================+ +---> +Apache Commons RNG JMH +=================== + +[](https://travis-ci.org/apache/commons-rng-jmh) +[](https://coveralls.io/r/apache/commons-rng-jmh) +[](https://maven-badges.herokuapp.com/maven-central/org.apache.commons/commons-rng-jmh/) +[](http://www.apache.org/licenses/LICENSE-2.0.html) + +Code for running JMH benchmarks that assess the performance of the generators. + +Documentation +------------- + +More information can be found on the [Apache Commons RNG JMH homepage](https://commons.apache.org/proper/commons-rng). +The [JavaDoc](https://commons.apache.org/proper/commons-rng/javadocs/api-release) can be browsed. +Questions related to the usage of Apache Commons RNG JMH should be posted to the [user mailing list][ml]. + +Where can I get the latest release? +----------------------------------- +You can download source and binaries from our [download page](https://commons.apache.org/proper/commons-rng/download_rng.cgi). + +Alternatively you can pull it from the central Maven repositories: + +```xml +<dependency> + <groupId>org.apache.commons</groupId> + <artifactId>commons-rng-jmh</artifactId> + <version>1.0</version> +</dependency> +``` + +Contributing +------------ + +We accept Pull Requests via GitHub. 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Then [donate back to the ASF](https://www.apache.org/foundation/contributing.html) to support the development. + +Additional Resources +-------------------- + ++ [Apache Commons Homepage](https://commons.apache.org/) ++ [Apache Issue Tracker (JIRA)](https://issues.apache.org/jira/browse/RNG) ++ [Apache Commons Twitter Account](https://twitter.com/ApacheCommons) ++ `#apache-commons` IRC channel on `irc.freenode.org` + +[ml]:https://commons.apache.org/mail-lists.html http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/pom.xml ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/pom.xml b/commons-rng-examples/examples-jmh/pom.xml new file mode 100644 index 0000000..5cbab8c --- /dev/null +++ b/commons-rng-examples/examples-jmh/pom.xml @@ -0,0 +1,127 @@ +<?xml version="1.0"?> +<!-- + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You 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. +--> +<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"; + xmlns="http://maven.apache.org/POM/4.0.0"; + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> + <modelVersion>4.0.0</modelVersion> + + <parent> + <groupId>org.apache.commons</groupId> + <artifactId>commons-rng-examples</artifactId> + <version>1.1-SNAPSHOT</version> + </parent> + + <groupId>org.apache.commons</groupId> + <artifactId>examples-jmh</artifactId> + <version>1.1-SNAPSHOT</version> + <name>Apache Commons RNG JMH</name> + + <description>Code for running JMH benchmarks that assess the performance of the generators. + Code in this module is not part of the public API.</description> + + <dependencies> + <dependency> + <groupId>org.apache.commons</groupId> + <artifactId>commons-rng-simple</artifactId> + </dependency> + + <dependency> + <groupId>org.apache.commons</groupId> + <artifactId>commons-rng-sampling</artifactId> + </dependency> + + <dependency> + <groupId>org.openjdk.jmh</groupId> + <artifactId>jmh-core</artifactId> + <version>${jmh.version}</version> + </dependency> + + <dependency> + <groupId>org.openjdk.jmh</groupId> + <artifactId>jmh-generator-annprocess</artifactId> + <version>${jmh.version}</version> + </dependency> + </dependencies> + + <properties> + <!-- OSGi --> + <commons.osgi.symbolicName>org.apache.commons.rng.examples.jmh</commons.osgi.symbolicName> + <commons.osgi.export>org.apache.commons.rng.examples.jmh</commons.osgi.export> + <!-- Java 9+ --> + <commons.automatic.module.name>org.apache.commons.rng.examples.jmh</commons.automatic.module.name> + <!-- Workaround to avoid duplicating config files. --> + <rng.parent.dir>${basedir}/../..</rng.parent.dir> + + <!-- JMH Benchmark related properties, version, target compiler and name of the benchmarking uber jar. --> + <jmh.version>1.13</jmh.version> + <uberjar.name>benchmarks</uberjar.name> + </properties> + + <profiles> + <profile> + <id>benchmark</id> + <properties> + <skipTests>true</skipTests> + <benchmark>org.apache</benchmark> + </properties> + + <build> + <plugins> + <plugin> + <groupId>org.apache.maven.plugins</groupId> + <artifactId>maven-compiler-plugin</artifactId> + <version>3.1</version> + <configuration> + <compilerVersion>${maven.compiler.target}</compilerVersion> + <source>${maven.compiler.target}</source> + <target>${maven.compiler.target}</target> + </configuration> + </plugin> + <plugin> + <groupId>org.codehaus.mojo</groupId> + <artifactId>exec-maven-plugin</artifactId> + <executions> + <execution> + <id>benchmark</id> + <phase>test</phase> + <goals> + <goal>exec</goal> + </goals> + <configuration> + <classpathScope>test</classpathScope> + <executable>java</executable> + <arguments> + <argument>-classpath</argument> + <classpath/> + <argument>org.openjdk.jmh.Main</argument> + <argument>-rf</argument> + <argument>json</argument> + <argument>-rff</argument> + <argument>target/jmh-result.${benchmark}.json</argument> + <argument>${benchmark}</argument> + </arguments> + </configuration> + </execution> + </executions> + </plugin> + </plugins> + </build> + </profile> + </profiles> + +</project> http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java new file mode 100644 index 0000000..c22cf7c --- /dev/null +++ b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java @@ -0,0 +1,194 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.rng.examples.jmh; + +import org.openjdk.jmh.annotations.Benchmark; +import org.openjdk.jmh.annotations.BenchmarkMode; +import org.openjdk.jmh.annotations.Mode; +import org.openjdk.jmh.annotations.Warmup; +import org.openjdk.jmh.annotations.Measurement; +import org.openjdk.jmh.annotations.State; +import org.openjdk.jmh.annotations.Fork; +import org.openjdk.jmh.annotations.Scope; +import org.openjdk.jmh.annotations.Param; +import org.openjdk.jmh.annotations.Setup; +import org.openjdk.jmh.annotations.OutputTimeUnit; +import org.openjdk.jmh.infra.Blackhole; +import java.util.concurrent.TimeUnit; + +import org.apache.commons.rng.UniformRandomProvider; +import org.apache.commons.rng.simple.RandomSource; + +/** + * Executes benchmark to compare the speed of generation of random numbers + * from the various source providers. + */ +@BenchmarkMode(Mode.AverageTime) +@OutputTimeUnit(TimeUnit.MICROSECONDS) +@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@State(Scope.Benchmark) +@Fork(value = 1, jvmArgs = {"-server", "-Xms128M", "-Xmx128M"}) +public class GenerationPerformance { + /** + * The benchmark state (retrieve the various "RandomSource"s). + */ + @State(Scope.Benchmark) + public static class Sources { + /** + * RNG providers. + */ + @Param({"JDK", + "WELL_512_A", + "WELL_1024_A", + "WELL_19937_A", + "WELL_19937_C", + "WELL_44497_A", + "WELL_44497_B", + "MT", + "ISAAC", + "SPLIT_MIX_64", + "MWC_256", + "KISS", + "XOR_SHIFT_1024_S", + "TWO_CMRES", + "MT_64" }) + private String randomSourceName; + + /** RNG. */ + private UniformRandomProvider provider; + + /** + * @return the RNG. + */ + public UniformRandomProvider getGenerator() { + return provider; + } + + /** Intantiates generator. */ + @Setup + public void setup() { + final RandomSource randomSource = RandomSource.valueOf(randomSourceName); + provider = RandomSource.create(randomSource); + } + } + + /** + * Number of random values to generate. + */ + @Param({"1", "100", "10000", "1000000"}) + private int numValues; + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextBoolean(Sources sources, + Blackhole bh) { + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextBoolean()); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextInt(Sources sources, + Blackhole bh) { + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextInt()); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextIntN(Sources sources, + Blackhole bh) { + final int n = 10; + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextInt(n)); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextLong(Sources sources, + Blackhole bh) { + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextLong()); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextLongN(Sources sources, + Blackhole bh) { + final long n = 2L * Integer.MAX_VALUE; + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextLong(n)); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextFloat(Sources sources, + Blackhole bh) { + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextFloat()); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextDouble(Sources sources, + Blackhole bh) { + for (int i = 0; i < numValues; i++) { + bh.consume(sources.getGenerator().nextDouble()); + } + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void nextBytes(Sources sources, + Blackhole bh) { + final byte[] result = new byte[numValues]; + sources.getGenerator().nextBytes(result); + bh.consume(result); + } +} http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java new file mode 100644 index 0000000..2b65432 --- /dev/null +++ b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java @@ -0,0 +1,68 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.rng.examples.jmh.distribution; + +import org.openjdk.jmh.annotations.Benchmark; +import org.openjdk.jmh.annotations.BenchmarkMode; +import org.openjdk.jmh.annotations.Mode; +import org.openjdk.jmh.annotations.Warmup; +import org.openjdk.jmh.annotations.Measurement; +import org.openjdk.jmh.annotations.State; +import org.openjdk.jmh.annotations.Fork; +import org.openjdk.jmh.annotations.Scope; +import org.openjdk.jmh.annotations.OutputTimeUnit; +import org.openjdk.jmh.infra.Blackhole; +import java.util.concurrent.TimeUnit; +import java.util.Random; + +/** + * Benchmark for {@link Random#nextGaussian()} in order to compare + * the speed of generation of normally-distributed random numbers. + */ +@BenchmarkMode(Mode.AverageTime) +@OutputTimeUnit(TimeUnit.MICROSECONDS) +@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@State(Scope.Benchmark) +@Fork(value = 1, jvmArgs = {"-server", "-Xms128M", "-Xmx128M"}) +public class NextGaussianPerformance { + /** Number of samples per run. */ + private static final int NUM_SAMPLES = 10000000; + /** JDK's generator. */ + private final Random random = new Random(); + /** + * Exercises the JDK's Gaussian sampler. + * + * @param bh Data sink. + */ + private void runSample(Blackhole bh) { + for (int i = 0; i < NUM_SAMPLES; i++) { + bh.consume(random.nextGaussian()); + } + } + + // Benchmarks methods below. + + /** + * @param bh Data sink. + */ + @Benchmark + public void runJDKRandomGaussianSampler(Blackhole bh) { + runSample(bh); + } +} http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/SamplersPerformance.java ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/SamplersPerformance.java b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/SamplersPerformance.java new file mode 100644 index 0000000..963d8bd --- /dev/null +++ b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/SamplersPerformance.java @@ -0,0 +1,264 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.rng.examples.jmh.distribution; + +import org.openjdk.jmh.annotations.Benchmark; +import org.openjdk.jmh.annotations.BenchmarkMode; +import org.openjdk.jmh.annotations.Mode; +import org.openjdk.jmh.annotations.Warmup; +import org.openjdk.jmh.annotations.Measurement; +import org.openjdk.jmh.annotations.State; +import org.openjdk.jmh.annotations.Fork; +import org.openjdk.jmh.annotations.Scope; +import org.openjdk.jmh.annotations.Param; +import org.openjdk.jmh.annotations.Setup; +import org.openjdk.jmh.annotations.OutputTimeUnit; +import org.openjdk.jmh.infra.Blackhole; +import java.util.concurrent.TimeUnit; + +import org.apache.commons.rng.UniformRandomProvider; +import org.apache.commons.rng.simple.RandomSource; +import org.apache.commons.rng.sampling.distribution.ContinuousSampler; +import org.apache.commons.rng.sampling.distribution.DiscreteSampler; +import org.apache.commons.rng.sampling.distribution.BoxMullerNormalizedGaussianSampler; +import org.apache.commons.rng.sampling.distribution.MarsagliaNormalizedGaussianSampler; +import org.apache.commons.rng.sampling.distribution.ZigguratNormalizedGaussianSampler; +import org.apache.commons.rng.sampling.distribution.AhrensDieterExponentialSampler; +import org.apache.commons.rng.sampling.distribution.AhrensDieterMarsagliaTsangGammaSampler; +import org.apache.commons.rng.sampling.distribution.LogNormalSampler; +import org.apache.commons.rng.sampling.distribution.ChengBetaSampler; +import org.apache.commons.rng.sampling.distribution.ContinuousUniformSampler; +import org.apache.commons.rng.sampling.distribution.DiscreteUniformSampler; +import org.apache.commons.rng.sampling.distribution.RejectionInversionZipfSampler; +import org.apache.commons.rng.sampling.distribution.PoissonSampler; + +/** + * Executes benchmark to compare the speed of generation of random numbers + * from the various source providers. + */ +@BenchmarkMode(Mode.AverageTime) +@OutputTimeUnit(TimeUnit.MICROSECONDS) +@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) +@State(Scope.Benchmark) +@Fork(value = 1, jvmArgs = {"-server", "-Xms128M", "-Xmx128M"}) +public class SamplersPerformance { + /** Number of samples per run. */ + private static final int NUM_SAMPLES = 10000000; + + /** + * The benchmark state (retrieve the various "RandomSource"s). + */ + @State(Scope.Benchmark) + public static class Sources { + /** + * RNG providers. + */ + @Param({"JDK", + "WELL_512_A", + "WELL_1024_A", + "WELL_19937_A", + "WELL_19937_C", + "WELL_44497_A", + "WELL_44497_B", + "MT", + "ISAAC", + "SPLIT_MIX_64", + "MWC_256", + "KISS", + "XOR_SHIFT_1024_S", + "TWO_CMRES", + "MT_64" }) + private String randomSourceName; + + /** RNG. */ + private UniformRandomProvider generator; + + /** + * @return the RNG. + */ + public UniformRandomProvider getGenerator() { + return generator; + } + + /** Intantiates generator. */ + @Setup + public void setup() { + final RandomSource randomSource = RandomSource.valueOf(randomSourceName); + generator = RandomSource.create(randomSource); + } + } + + /** + * Exercises a continuous sampler. + * + * @param sampler Sampler. + * @param bh Data sink. + */ + private void runSample(ContinuousSampler sampler, + Blackhole bh) { + for (int i = 0; i < NUM_SAMPLES; i++) { + bh.consume(sampler.sample()); + } + } + + /** + * Exercises a discrete sampler. + * + * @param sampler Sampler. + * @param bh Data sink. + */ + private void runSample(DiscreteSampler sampler, + Blackhole bh) { + for (int i = 0; i < NUM_SAMPLES; i++) { + bh.consume(sampler.sample()); + } + } + + // Benchmarks methods below. + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runBoxMullerNormalizedGaussianSampler(Sources sources, + Blackhole bh) { + runSample(new BoxMullerNormalizedGaussianSampler(sources.getGenerator()), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runMarsagliaNormalizedGaussianSampler(Sources sources, + Blackhole bh) { + runSample(new MarsagliaNormalizedGaussianSampler(sources.getGenerator()), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runZigguratNormalizedGaussianSampler(Sources sources, + Blackhole bh) { + runSample(new ZigguratNormalizedGaussianSampler(sources.getGenerator()), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runAhrensDieterExponentialSampler(Sources sources, + Blackhole bh) { + runSample(new AhrensDieterExponentialSampler(sources.getGenerator(), 4.56), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runAhrensDieterMarsagliaTsangGammaSampler(Sources sources, + Blackhole bh) { + runSample(new AhrensDieterMarsagliaTsangGammaSampler(sources.getGenerator(), 9.8, 0.76), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runBoxMullerLogNormalSampler(Sources sources, + Blackhole bh) { + runSample(new LogNormalSampler(new BoxMullerNormalizedGaussianSampler(sources.getGenerator()), 12.3, 4.6), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runMarsagliaLogNormalSampler(Sources sources, + Blackhole bh) { + runSample(new LogNormalSampler(new MarsagliaNormalizedGaussianSampler(sources.getGenerator()), 12.3, 4.6), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runZigguratLogNormalSampler(Sources sources, + Blackhole bh) { + runSample(new LogNormalSampler(new ZigguratNormalizedGaussianSampler(sources.getGenerator()), 12.3, 4.6), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runChengBetaSampler(Sources sources, + Blackhole bh) { + runSample(new ChengBetaSampler(sources.getGenerator(), 0.45, 6.7), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runContinuousUniformSampler(Sources sources, + Blackhole bh) { + runSample(new ContinuousUniformSampler(sources.getGenerator(), 123.4, 5678.9), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runDiscreteUniformSampler(Sources sources, + Blackhole bh) { + runSample(new DiscreteUniformSampler(sources.getGenerator(), -98, 76), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runRejectionInversionZipfSampler(Sources sources, + Blackhole bh) { + runSample(new RejectionInversionZipfSampler(sources.getGenerator(), 43, 2.1), bh); + } + + /** + * @param sources Source of randomness. + * @param bh Data sink. + */ + @Benchmark + public void runPoissonSampler(Sources sources, + Blackhole bh) { + runSample(new PoissonSampler(sources.getGenerator(), 8.9), bh); + } +} http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/package-info.java ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/package-info.java b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/package-info.java new file mode 100644 index 0000000..517063d --- /dev/null +++ b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/package-info.java @@ -0,0 +1,22 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + */ + +/** + * Benchmarks for samplers. + */ + +package org.apache.commons.rng.examples.jmh.distribution; http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/package-info.java ---------------------------------------------------------------------- diff --git a/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/package-info.java b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/package-info.java new file mode 100644 index 0000000..f6a9ab7 --- /dev/null +++ b/commons-rng-examples/examples-jmh/src/main/java/org/apache/commons/rng/jmh/package-info.java @@ -0,0 +1,27 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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. + */ + +/** + * <h3>Performance benchmarks</h3> + * + * <p> + * This package contains code to perform a + * <a href="http://openjdk.java.net/projects/code-tools/jmh";>JMH</a> run. + * </p> + */ + +package org.apache.commons.rng.examples.jmh; http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/LICENSE.txt ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/LICENSE.txt b/commons-rng-jmh/LICENSE.txt deleted file mode 100644 index de777e4..0000000 --- a/commons-rng-jmh/LICENSE.txt +++ /dev/null @@ -1,275 +0,0 @@ - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. 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IN NO EVENT SHALL THE COPYRIGHT OWNER OR - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -================================================================================ - -Class "org.apache.commons.rng.internal.source32.MersenneTwister" contains -Java code partly ported from the reference implementation in C. -That source file contained the following notice: - - Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura, - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - 3. The names of its contributors may not be used to endorse or promote - products derived from this software without specific prior written - permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -================================================================================ http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/NOTICE.txt ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/NOTICE.txt b/commons-rng-jmh/NOTICE.txt deleted file mode 100644 index b2eab86..0000000 --- a/commons-rng-jmh/NOTICE.txt +++ /dev/null @@ -1,5 +0,0 @@ -Apache Commons RNG -Copyright 2016-2018 The Apache Software Foundation - -This product includes software developed at -The Apache Software Foundation (http://www.apache.org/). http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/README.md ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/README.md b/commons-rng-jmh/README.md deleted file mode 100644 index f993421..0000000 --- a/commons-rng-jmh/README.md +++ /dev/null @@ -1,105 +0,0 @@ -<!--- - Licensed to the Apache Software Foundation (ASF) under one or more - contributor license agreements. See the NOTICE file distributed with - this work for additional information regarding copyright ownership. - The ASF licenses this file to You 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. ---> -<!--- - +======================================================================+ - |**** ****| - |**** THIS FILE IS GENERATED BY THE COMMONS BUILD PLUGIN ****| - |**** DO NOT EDIT DIRECTLY ****| - |**** ****| - +======================================================================+ - | TEMPLATE FILE: readme-md-template.md | - | commons-build-plugin/trunk/src/main/resources/commons-xdoc-templates | - +======================================================================+ - | | - | 1) Re-generate using: mvn commons:readme-md | - | | - | 2) Set the following properties in the component's pom: | - | - commons.componentid (required, alphabetic, lower case) | - | - commons.release.version (required) | - | | - | 3) Example Properties | - | | - | <properties> | - | <commons.componentid>math</commons.componentid> | - | <commons.release.version>1.2</commons.release.version> | - | </properties> | - | | - +======================================================================+ ----> -Apache Commons RNG JMH -=================== - -[](https://travis-ci.org/apache/commons-rng-jmh) -[](https://coveralls.io/r/apache/commons-rng-jmh) -[](https://maven-badges.herokuapp.com/maven-central/org.apache.commons/commons-rng-jmh/) -[](http://www.apache.org/licenses/LICENSE-2.0.html) - -Code for running JMH benchmarks that assess the performance of the generators. - -Documentation -------------- - -More information can be found on the [Apache Commons RNG JMH homepage](https://commons.apache.org/proper/commons-rng). -The [JavaDoc](https://commons.apache.org/proper/commons-rng/javadocs/api-release) can be browsed. -Questions related to the usage of Apache Commons RNG JMH should be posted to the [user mailing list][ml]. - -Where can I get the latest release? ------------------------------------ -You can download source and binaries from our [download page](https://commons.apache.org/proper/commons-rng/download_rng.cgi). - -Alternatively you can pull it from the central Maven repositories: - -```xml -<dependency> - <groupId>org.apache.commons</groupId> - <artifactId>commons-rng-jmh</artifactId> - <version>1.0</version> -</dependency> -``` - -Contributing ------------- - -We accept Pull Requests via GitHub. The [developer mailing list][ml] is the main channel of communication for contributors. -There are some guidelines which will make applying PRs easier for us: -+ No tabs! Please use spaces for indentation. -+ Respect the code style. -+ Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change. -+ Provide JUnit tests for your changes and make sure your changes don't break any existing tests by running ```mvn clean test```. - -If you plan to contribute on a regular basis, please consider filing a [contributor license agreement](https://www.apache.org/licenses/#clas). -You can learn more about contributing via GitHub in our [contribution guidelines](CONTRIBUTING.md). - -License -------- -This code is under the [Apache Licence v2](https://www.apache.org/licenses/LICENSE-2.0). - -See the `NOTICE.txt` file for required notices and attributions. - -Donations ---------- -You like Apache Commons RNG JMH? Then [donate back to the ASF](https://www.apache.org/foundation/contributing.html) to support the development. - -Additional Resources --------------------- - -+ [Apache Commons Homepage](https://commons.apache.org/) -+ [Apache Issue Tracker (JIRA)](https://issues.apache.org/jira/browse/RNG) -+ [Apache Commons Twitter Account](https://twitter.com/ApacheCommons) -+ `#apache-commons` IRC channel on `irc.freenode.org` - -[ml]:https://commons.apache.org/mail-lists.html http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/pom.xml ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/pom.xml b/commons-rng-jmh/pom.xml deleted file mode 100644 index b02354a..0000000 --- a/commons-rng-jmh/pom.xml +++ /dev/null @@ -1,129 +0,0 @@ -<?xml version="1.0"?> -<!-- - Licensed to the Apache Software Foundation (ASF) under one or more - contributor license agreements. See the NOTICE file distributed with - this work for additional information regarding copyright ownership. - The ASF licenses this file to You 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. ---> -<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"; - xmlns="http://maven.apache.org/POM/4.0.0"; - xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> - <modelVersion>4.0.0</modelVersion> - - <parent> - <groupId>org.apache.commons</groupId> - <artifactId>commons-rng-parent</artifactId> - <version>1.1-SNAPSHOT</version> - </parent> - - <groupId>org.apache.commons</groupId> - <artifactId>commons-rng-jmh</artifactId> - <version>1.1-SNAPSHOT</version> - <name>Apache Commons RNG JMH</name> - - <description>Code for running JMH benchmarks that assess the performance of the generators. - Code in this module is not part of the public API.</description> - - <dependencies> - <dependency> - <groupId>org.apache.commons</groupId> - <artifactId>commons-rng-simple</artifactId> - <version>1.1-SNAPSHOT</version> - </dependency> - - <dependency> - <groupId>org.apache.commons</groupId> - <artifactId>commons-rng-sampling</artifactId> - <version>1.1-SNAPSHOT</version> - </dependency> - - <dependency> - <groupId>org.openjdk.jmh</groupId> - <artifactId>jmh-core</artifactId> - <version>${jmh.version}</version> - </dependency> - - <dependency> - <groupId>org.openjdk.jmh</groupId> - <artifactId>jmh-generator-annprocess</artifactId> - <version>${jmh.version}</version> - </dependency> - </dependencies> - - <properties> - <!-- OSGi --> - <commons.osgi.symbolicName>org.apache.commons.rng.jmh</commons.osgi.symbolicName> - <commons.osgi.export>org.apache.commons.rng.jmh</commons.osgi.export> - <!-- Java 9+ --> - <commons.automatic.module.name>org.apache.commons.rng.jmh</commons.automatic.module.name> - <!-- Workaround to avoid duplicating config files. --> - <rng.parent.dir>${basedir}/..</rng.parent.dir> - - <!-- JMH Benchmark related properties, version, target compiler and name of the benchmarking uber jar. --> - <jmh.version>1.13</jmh.version> - <uberjar.name>benchmarks</uberjar.name> - </properties> - - <profiles> - <profile> - <id>benchmark</id> - <properties> - <skipTests>true</skipTests> - <benchmark>org.apache</benchmark> - </properties> - - <build> - <plugins> - <plugin> - <groupId>org.apache.maven.plugins</groupId> - <artifactId>maven-compiler-plugin</artifactId> - <version>3.1</version> - <configuration> - <compilerVersion>${maven.compiler.target}</compilerVersion> - <source>${maven.compiler.target}</source> - <target>${maven.compiler.target}</target> - </configuration> - </plugin> - <plugin> - <groupId>org.codehaus.mojo</groupId> - <artifactId>exec-maven-plugin</artifactId> - <executions> - <execution> - <id>benchmark</id> - <phase>test</phase> - <goals> - <goal>exec</goal> - </goals> - <configuration> - <classpathScope>test</classpathScope> - <executable>java</executable> - <arguments> - <argument>-classpath</argument> - <classpath/> - <argument>org.openjdk.jmh.Main</argument> - <argument>-rf</argument> - <argument>json</argument> - <argument>-rff</argument> - <argument>target/jmh-result.${benchmark}.json</argument> - <argument>${benchmark}</argument> - </arguments> - </configuration> - </execution> - </executions> - </plugin> - </plugins> - </build> - </profile> - </profiles> - -</project> http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java b/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java deleted file mode 100644 index b1b663b..0000000 --- a/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/GenerationPerformance.java +++ /dev/null @@ -1,194 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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 org.apache.commons.rng.jmh; - -import org.openjdk.jmh.annotations.Benchmark; -import org.openjdk.jmh.annotations.BenchmarkMode; -import org.openjdk.jmh.annotations.Mode; -import org.openjdk.jmh.annotations.Warmup; -import org.openjdk.jmh.annotations.Measurement; -import org.openjdk.jmh.annotations.State; -import org.openjdk.jmh.annotations.Fork; -import org.openjdk.jmh.annotations.Scope; -import org.openjdk.jmh.annotations.Param; -import org.openjdk.jmh.annotations.Setup; -import org.openjdk.jmh.annotations.OutputTimeUnit; -import org.openjdk.jmh.infra.Blackhole; -import java.util.concurrent.TimeUnit; - -import org.apache.commons.rng.UniformRandomProvider; -import org.apache.commons.rng.simple.RandomSource; - -/** - * Executes benchmark to compare the speed of generation of random numbers - * from the various source providers. - */ -@BenchmarkMode(Mode.AverageTime) -@OutputTimeUnit(TimeUnit.MICROSECONDS) -@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) -@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) -@State(Scope.Benchmark) -@Fork(value = 1, jvmArgs = {"-server", "-Xms128M", "-Xmx128M"}) -public class GenerationPerformance { - /** - * The benchmark state (retrieve the various "RandomSource"s). - */ - @State(Scope.Benchmark) - public static class Sources { - /** - * RNG providers. - */ - @Param({"JDK", - "WELL_512_A", - "WELL_1024_A", - "WELL_19937_A", - "WELL_19937_C", - "WELL_44497_A", - "WELL_44497_B", - "MT", - "ISAAC", - "SPLIT_MIX_64", - "MWC_256", - "KISS", - "XOR_SHIFT_1024_S", - "TWO_CMRES", - "MT_64" }) - private String randomSourceName; - - /** RNG. */ - private UniformRandomProvider provider; - - /** - * @return the RNG. - */ - public UniformRandomProvider getGenerator() { - return provider; - } - - /** Intantiates generator. */ - @Setup - public void setup() { - final RandomSource randomSource = RandomSource.valueOf(randomSourceName); - provider = RandomSource.create(randomSource); - } - } - - /** - * Number of random values to generate. - */ - @Param({"1", "100", "10000", "1000000"}) - private int numValues; - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextBoolean(Sources sources, - Blackhole bh) { - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextBoolean()); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextInt(Sources sources, - Blackhole bh) { - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextInt()); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextIntN(Sources sources, - Blackhole bh) { - final int n = 10; - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextInt(n)); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextLong(Sources sources, - Blackhole bh) { - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextLong()); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextLongN(Sources sources, - Blackhole bh) { - final long n = 2L * Integer.MAX_VALUE; - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextLong(n)); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextFloat(Sources sources, - Blackhole bh) { - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextFloat()); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextDouble(Sources sources, - Blackhole bh) { - for (int i = 0; i < numValues; i++) { - bh.consume(sources.getGenerator().nextDouble()); - } - } - - /** - * @param sources Source of randomness. - * @param bh Data sink. - */ - @Benchmark - public void nextBytes(Sources sources, - Blackhole bh) { - final byte[] result = new byte[numValues]; - sources.getGenerator().nextBytes(result); - bh.consume(result); - } -} http://git-wip-us.apache.org/repos/asf/commons-rng/blob/312abc0e/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java ---------------------------------------------------------------------- diff --git a/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java b/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java deleted file mode 100644 index 018ded8..0000000 --- a/commons-rng-jmh/src/main/java/org/apache/commons/rng/jmh/distribution/NextGaussianPerformance.java +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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 org.apache.commons.rng.jmh.distribution; - -import org.openjdk.jmh.annotations.Benchmark; -import org.openjdk.jmh.annotations.BenchmarkMode; -import org.openjdk.jmh.annotations.Mode; -import org.openjdk.jmh.annotations.Warmup; -import org.openjdk.jmh.annotations.Measurement; -import org.openjdk.jmh.annotations.State; -import org.openjdk.jmh.annotations.Fork; -import org.openjdk.jmh.annotations.Scope; -import org.openjdk.jmh.annotations.OutputTimeUnit; -import org.openjdk.jmh.infra.Blackhole; -import java.util.concurrent.TimeUnit; -import java.util.Random; - -/** - * Benchmark for {@link Random#nextGaussian()} in order to compare - * the speed of generation of normally-distributed random numbers. - */ -@BenchmarkMode(Mode.AverageTime) -@OutputTimeUnit(TimeUnit.MICROSECONDS) -@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) -@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) -@State(Scope.Benchmark) -@Fork(value = 1, jvmArgs = {"-server", "-Xms128M", "-Xmx128M"}) -public class NextGaussianPerformance { - /** Number of samples per run. */ - private static final int NUM_SAMPLES = 10000000; - /** JDK's generator. */ - private final Random random = new Random(); - /** - * Exercises the JDK's Gaussian sampler. - * - * @param bh Data sink. - */ - private void runSample(Blackhole bh) { - for (int i = 0; i < NUM_SAMPLES; i++) { - bh.consume(random.nextGaussian()); - } - } - - // Benchmarks methods below. - - /** - * @param bh Data sink. - */ - @Benchmark - public void runJDKRandomGaussianSampler(Blackhole bh) { - runSample(bh); - } -}
