jdk8-mips64-public/hotspot: test/compiler/6863420/Test.java@f67065f02409 (annotated)

test/compiler/6863420/Test.java@f67065f02409 (annotated)

test/compiler/6863420/Test.java

Mon, 08 Apr 2013 07:40:08 -0700

author: bharadwaj
date: Mon, 08 Apr 2013 07:40:08 -0700
changeset 4907: f67065f02409
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8010913: compiler/6863420 often exceeds timeout
Summary: add longer timeout for jtreg, add internal timeout thread to prevent spurious timeouts
Reviewed-by: twisti, kvn
Contributed-by: drchase <david.r.chase@oracle.com>

 /*
  * Copyright 2009 D.E. Shaw.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 /**
  * @test
  * @bug 6863420
  * @summary os::javaTimeNanos() go backward on Solaris x86
  *
  * Notice the internal timeout in timeout thread Test.TOT.
  * @run main/othervm/timeout=300 Test
  */
 public class Test {
     static final int INTERNAL_TIMEOUT=240;
     static class TOT extends Thread {
        public void run() {
            try {
                Thread.sleep(INTERNAL_TIMEOUT*1000);
            } catch (InterruptedException ex) {
            }
            done = true;
        }
     }
     static long value = 0;
     static boolean got_backward_time = false;
     static volatile boolean done = false;
     public static void main(String args[]) {
         final int count = 100000;
         TOT tot = new TOT();
         tot.setDaemon(true);
         tot.start();
         for (int numThreads = 1; !done && numThreads <= 32; numThreads++) {
             final int numRuns = 1;
             for (int t=1; t <= numRuns; t++) {
                 final int curRun = t;
                 System.out.println("Spawning " + numThreads + " threads");
                 final Thread threads[] = new Thread[numThreads];
                 for (int i = 0; i < threads.length; i++) {
                     Runnable thread =
                         new Runnable() {
                             public void run() {
                                 for (long l = 0; !done && l < 100000; l++) {
                                     final long start = System.nanoTime();
                                     if (value == 12345678) {
                                         System.out.println("Wow!");
                                     }
                                     final long end = System.nanoTime();
                                     final long time = end - start;
                                     value += time;
                                     if (time < 0) {
                                         System.out.println(
                                             "Backwards: " +
                                             "start=" + start + " " +
                                             "end=" + end + " " +
                                             "time= " + time
                                         );
                                         got_backward_time = true;
                                     }
                                 }
                             }
                         };
                     threads[i] = new Thread(thread, "Thread" + i);
                 }
                 for (int i = 0; i < threads.length; i++) {
                     threads[i].start();
                 }
                 for (int i = 0; i < threads.length; i++) {
                     try {
                         threads[i].join();
                     }
                     catch (InterruptedException e) {
                         continue;
                     }
                 }
             }
         }
         if (got_backward_time) {
             System.exit(97);
         }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/6863420/Test.java@f67065f02409 (annotated)

test/compiler/6863420/Test.java