Tue, 31 Aug 2010 17:23:45 -0700
Added tag hs19-b06 for changeset 6c43216df135
kvn@1329 | 1 | /* |
kvn@1329 | 2 | * Copyright 2009 D.E. Shaw. All Rights Reserved. |
kvn@1329 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
kvn@1329 | 4 | * |
kvn@1329 | 5 | * This code is free software; you can redistribute it and/or modify it |
kvn@1329 | 6 | * under the terms of the GNU General Public License version 2 only, as |
kvn@1329 | 7 | * published by the Free Software Foundation. |
kvn@1329 | 8 | * |
kvn@1329 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
kvn@1329 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
kvn@1329 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
kvn@1329 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
kvn@1329 | 13 | * accompanied this code). |
kvn@1329 | 14 | * |
kvn@1329 | 15 | * You should have received a copy of the GNU General Public License version |
kvn@1329 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
kvn@1329 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
kvn@1329 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
kvn@1329 | 22 | * |
kvn@1329 | 23 | */ |
kvn@1329 | 24 | |
kvn@1329 | 25 | /** |
kvn@1329 | 26 | * @test |
kvn@1329 | 27 | * @bug 6863420 |
kvn@1329 | 28 | * @summary os::javaTimeNanos() go backward on Solaris x86 |
kvn@1329 | 29 | * |
kvn@1329 | 30 | * @run main/othervm Test |
kvn@1329 | 31 | */ |
kvn@1329 | 32 | |
kvn@1329 | 33 | public class Test { |
kvn@1329 | 34 | static long value = 0; |
kvn@1329 | 35 | static boolean got_backward_time = false; |
kvn@1329 | 36 | |
kvn@1329 | 37 | public static void main(String args[]) { |
kvn@1329 | 38 | final int count = 100000; |
kvn@1329 | 39 | |
kvn@1329 | 40 | for (int numThreads = 1; numThreads <= 32; numThreads++) { |
kvn@1329 | 41 | final int numRuns = 1; |
kvn@1329 | 42 | for (int t=1; t <= numRuns; t++) { |
kvn@1329 | 43 | final int curRun = t; |
kvn@1329 | 44 | |
kvn@1329 | 45 | System.out.println("Spawning " + numThreads + " threads"); |
kvn@1329 | 46 | final Thread threads[] = new Thread[numThreads]; |
kvn@1329 | 47 | for (int i = 0; i < threads.length; i++) { |
kvn@1329 | 48 | Runnable thread = |
kvn@1329 | 49 | new Runnable() { |
kvn@1329 | 50 | public void run() { |
kvn@1329 | 51 | for (long l = 0; l < 100000; l++) { |
kvn@1329 | 52 | final long start = System.nanoTime(); |
kvn@1329 | 53 | if (value == 12345678) { |
kvn@1329 | 54 | System.out.println("Wow!"); |
kvn@1329 | 55 | } |
kvn@1329 | 56 | final long end = System.nanoTime(); |
kvn@1329 | 57 | final long time = end - start; |
kvn@1329 | 58 | value += time; |
kvn@1329 | 59 | if (time < 0) { |
kvn@1329 | 60 | System.out.println( |
kvn@1329 | 61 | "Backwards: " + |
kvn@1329 | 62 | "start=" + start + " " + |
kvn@1329 | 63 | "end=" + end + " " + |
kvn@1329 | 64 | "time= " + time |
kvn@1329 | 65 | ); |
kvn@1329 | 66 | got_backward_time = true; |
kvn@1329 | 67 | } |
kvn@1329 | 68 | } |
kvn@1329 | 69 | } |
kvn@1329 | 70 | }; |
kvn@1329 | 71 | threads[i] = new Thread(thread, "Thread" + i); |
kvn@1329 | 72 | } |
kvn@1329 | 73 | for (int i = 0; i < threads.length; i++) { |
kvn@1329 | 74 | threads[i].start(); |
kvn@1329 | 75 | } |
kvn@1329 | 76 | for (int i = 0; i < threads.length; i++) { |
kvn@1329 | 77 | try { |
kvn@1329 | 78 | threads[i].join(); |
kvn@1329 | 79 | } |
kvn@1329 | 80 | catch (InterruptedException e) { |
kvn@1329 | 81 | continue; |
kvn@1329 | 82 | } |
kvn@1329 | 83 | } |
kvn@1329 | 84 | } |
kvn@1329 | 85 | } |
kvn@1329 | 86 | |
kvn@1329 | 87 | if (got_backward_time) { |
kvn@1329 | 88 | System.exit(97); |
kvn@1329 | 89 | } |
kvn@1329 | 90 | } |
kvn@1329 | 91 | } |