1.1 --- a/test/gc/7168848/HumongousAlloc.java Fri Oct 18 10:37:26 2013 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,74 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation.
1.11 - *
1.12 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 - * version 2 for more details (a copy is included in the LICENSE file that
1.16 - * accompanied this code).
1.17 - *
1.18 - * You should have received a copy of the GNU General Public License version
1.19 - * 2 along with this work; if not, write to the Free Software Foundation,
1.20 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 - *
1.22 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 - * or visit www.oracle.com if you need additional information or have any
1.24 - * questions.
1.25 - */
1.26 -
1.27 -/*
1.28 - * @test Humongous.java
1.29 - * @bug 7168848
1.30 - * @summary G1: humongous object allocations should initiate marking cycles when necessary
1.31 - * @run main/othervm -Xms100m -Xmx100m -XX:+PrintGC -XX:G1HeapRegionSize=1m -XX:+UseG1GC HumongousAlloc
1.32 - *
1.33 - */
1.34 -import java.lang.management.GarbageCollectorMXBean;
1.35 -import java.lang.management.ManagementFactory;
1.36 -import java.util.List;
1.37 -
1.38 -public class HumongousAlloc {
1.39 -
1.40 - public static byte[] dummy;
1.41 - private static int sleepFreq = 40;
1.42 - private static int sleepTime = 1000;
1.43 - private static double size = 0.75;
1.44 - private static int iterations = 50;
1.45 - private static int MB = 1024 * 1024;
1.46 -
1.47 - public static void allocate(int size, int sleepTime, int sleepFreq) throws InterruptedException {
1.48 - System.out.println("Will allocate objects of size: " + size
1.49 - + " bytes and sleep for " + sleepTime
1.50 - + " ms after every " + sleepFreq + "th allocation.");
1.51 - int count = 0;
1.52 - while (count < iterations) {
1.53 - for (int i = 0; i < sleepFreq; i++) {
1.54 - dummy = new byte[size - 16];
1.55 - }
1.56 - Thread.sleep(sleepTime);
1.57 - count++;
1.58 - }
1.59 - }
1.60 -
1.61 - public static void main(String[] args) throws InterruptedException {
1.62 - allocate((int) (size * MB), sleepTime, sleepFreq);
1.63 - List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
1.64 - for (GarbageCollectorMXBean collector : collectors) {
1.65 - if (collector.getName().contains("G1 Old")) {
1.66 - long count = collector.getCollectionCount();
1.67 - if (count > 0) {
1.68 - throw new RuntimeException("Failed: FullGCs should not have happened. The number of FullGC run is " + count);
1.69 - }
1.70 - else {
1.71 - System.out.println("Passed.");
1.72 - }
1.73 - }
1.74 - }
1.75 - }
1.76 -}
1.77 -
