1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8137167 27 * @summary Tests jcmd to be able to add a lot of huge directive files with 28 * parallel executed jcmds until timeout has reached 29 * @modules java.base/jdk.internal.misc 30 * @library /test/lib / 31 * 32 * @build sun.hotspot.WhiteBox 33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run driver compiler.compilercontrol.jcmd.StressAddMultiThreadedTest 36 */ 37 38 package compiler.compilercontrol.jcmd; 39 40 import jdk.test.lib.dcmd.PidJcmdExecutor; 41 42 import java.util.concurrent.ArrayBlockingQueue; 43 import java.util.concurrent.BlockingQueue; 44 import java.util.concurrent.ExecutorService; 45 import java.util.concurrent.ThreadPoolExecutor; 46 import java.util.concurrent.TimeUnit; 47 48 public class StressAddMultiThreadedTest extends StressAddJcmdBase { 49 private static final int THREADS = Integer.getInteger( 50 "compiler.compilercontrol.jcmd.StressAddMultiThreadedTest.threads", 51 5); 52 private volatile int commands = Integer.getInteger( 53 "compiler.compilercontrol.jcmd.StressAddMultiThreadedTest.commands", 54 20); 55 private final BlockingQueue<Runnable> queue; 56 private final ExecutorService executor; 57 58 public StressAddMultiThreadedTest() { 59 queue = new ArrayBlockingQueue<>(THREADS); 60 executor = new ThreadPoolExecutor(THREADS, THREADS, 100, 61 TimeUnit.MILLISECONDS, queue, 62 new ThreadPoolExecutor.CallerRunsPolicy()); 63 } 64 65 public static void main(String[] args) { 66 new StressAddMultiThreadedTest().test(); 67 } 68 69 @Override 70 protected boolean makeConnection(int pid) { 71 executor.submit(() -> new PidJcmdExecutor(String.valueOf(pid)) 72 .execute(nextCommand())); 73 return (--commands != 0); 74 } 75 76 @Override 77 protected void finish() { 78 executor.shutdown(); 79 try { 80 executor.awaitTermination(10, TimeUnit.SECONDS); 81 } catch (InterruptedException e) { 82 throw new Error("Interrupted while awaiting for termination: " + e, 83 e); 84 } 85 executor.shutdownNow(); 86 } 87 }