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danielshaya / CompTestBenchmark.java
Last active October 21, 2016 12:56
Comparing sorting implementations
package comp;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
@danielshaya
danielshaya / FixedCompTestBenchmark.java
Created February 3, 2015 14:43
CompTestBenchmark by Aleksey Shipilev
package comp;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
@danielshaya
danielshaya / FindSlowCode.java
Created February 11, 2015 13:46
Class to demonstrate the use of Monitor
package example;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Logger;
import java.util.stream.Stream;
/**
* Class to demonstrate the use of Monitor
*/
public class FindSlowCode {
@danielshaya
danielshaya / TwoStringsBenchmark.java
Created February 17, 2015 17:39
Benchmark to concatenate 2 Strings
package org.sample;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@danielshaya
danielshaya / LoopStringsBenchmark.java
Created February 17, 2015 17:53
Benchmark to test joining Strings in a loop
package org.sample;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@danielshaya
danielshaya / Test2.java
Last active August 29, 2015 14:15
Test to show what happens if you don't close Files.lines()
package utility;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Date;
@danielshaya
danielshaya / Calculator.java
Created March 9, 2015 15:09
Rest Calculator
package example;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;
@Path("calculator")
@danielshaya
danielshaya / RestServer.java
Created March 9, 2015 15:36
RestServer
package example;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
public class RestServer {
public static void main(String[] args) throws Exception {
ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
@danielshaya
danielshaya / build.gradle
Created March 9, 2015 15:44
Gradle build file for rest server
apply plugin: 'java'
version = '1.0'
repositories {
mavenCentral()
}
dependencies {
compile group: 'org.glassfish.jersey.core', name: 'jersey-server', version: '2.7'
@danielshaya
danielshaya / CreateOnHeapTest.java
Created March 15, 2015 11:08
On heap test for creating 10m objects
package zeroalloc;
import org.junit.Assert;
import org.junit.Test;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Class to demonstrate zero garbage creation.