| /* |
| * 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.ignite.loadtests.mergesort; |
| |
| import java.io.IOException; |
| import java.time.Instant; |
| import java.util.Random; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.internal.util.IgniteUtils; |
| import org.apache.ignite.internal.util.lang.GridAbsClosure; |
| import org.apache.ignite.internal.util.typedef.G; |
| import org.apache.ignite.internal.util.typedef.X; |
| import org.apache.ignite.testframework.GridFileLock; |
| import org.apache.ignite.testframework.GridLoadTestUtils; |
| |
| /** |
| * Merge-sort load test. |
| */ |
| public class GridMergeSortLoadTest { |
| /** Default size of real array to be sorted. */ |
| private static final int ARR_SIZE = 100000; |
| |
| /** A fixed seed that gives equal arrays each run. */ |
| public static final int FIXED_SEED = 23; |
| |
| /** |
| * Entry point for this test. Generates an input array of random integers, |
| * starts the grid, and launches the job. The method then waits for job completion. |
| * |
| * @param args Program arguments. |
| * <ul> |
| * <li> |
| * <b>1-st argument:</b> absolute or relative path to the configuration |
| * file for the grid (optional). |
| * </li> |
| * <li> |
| * <b>2-nd argument:</b> size of the generated array (optional, default: {@code 100000}). |
| * </li> |
| * <li> |
| * <b>3-nd argument:</b> size of the generated array for "warm up" (optional, default: {@code 10000}). |
| * </li> |
| * </ul> |
| * @throws IgniteCheckedException In case of error. |
| * @throws IOException In case of file output error. |
| */ |
| public static void main(String[] args) throws IgniteCheckedException, IOException { |
| GridFileLock fileLock = GridLoadTestUtils.fileLock(); |
| |
| fileLock.lock(); |
| |
| try { |
| String outputFileName = args.length >= 1 ? args[0] : null; |
| |
| try (Ignite g = G.start(args.length >= 2 ? args[1] : "modules/core/src/test/config/load/merge-sort-base.xml")) { |
| int arrRealSize = args.length > 1 ? Integer.parseInt(args[1]) : ARR_SIZE; |
| |
| int arrWarmupSize = args.length > 2 ? Integer.parseInt(args[2]) : ARR_SIZE; |
| |
| X.println("Test is being executed on the gird of size " + g.cluster().nodes().size() + "."); |
| |
| X.println("Performing warm up sorting of int[" + arrWarmupSize + "]..."); |
| |
| sort(g, arrWarmupSize); |
| |
| X.println("Cleaning up after warm-up..."); |
| |
| // Run GC on all nodes. |
| g.compute().broadcast(new GridAbsClosure() { |
| @Override public void apply() { |
| System.gc(); |
| } |
| }); |
| |
| X.println("Performing measured sorting of int[" + arrRealSize + "]..."); |
| |
| long execTime = sort(g, arrRealSize); |
| |
| if (outputFileName != null) |
| GridLoadTestUtils.appendLineToFile( |
| outputFileName, |
| "%s,%d", |
| IgniteUtils.LONG_DATE_FMT.format(Instant.now()), |
| execTime / 1000); |
| } |
| } |
| finally { |
| fileLock.close(); |
| } |
| } |
| |
| /** |
| * Generates a random array and performs merge sort benchmark. |
| * |
| * @param g Grid to run sorting on. |
| * @param size Size of the generated array, which we sort. |
| * @return Sort execution time in milliseconds. |
| */ |
| private static long sort(Ignite g, int size) { |
| int[] bigArr = generateRandomArray(size); |
| |
| X.println("Array is generated."); |
| |
| long startTime = System.currentTimeMillis(); |
| |
| g.compute().execute(new GridMergeSortLoadTask(), bigArr); |
| |
| long execTime = System.currentTimeMillis() - startTime; |
| |
| X.println("Sorting is finished. Execution time: " + execTime + "ms"); |
| |
| return execTime; |
| } |
| |
| /** |
| * Generates an int array of random elements of specified size. |
| * |
| * @param size Size of an array. |
| * @return The generated array. |
| */ |
| private static int[] generateRandomArray(int size) { |
| int[] ret = new int[size]; |
| |
| Random rnd = new Random(FIXED_SEED); |
| |
| for (int i = 0; i < ret.length; i++) |
| ret[i] = rnd.nextInt(100); |
| |
| return ret; |
| } |
| } |