hotspot/test/gc/7168848/HumongousAlloc.java
changeset 21502 0153716da78b
parent 21501 47605fc9fac0
parent 21145 dfa34ab293fa
child 21503 45fc62482cae
--- a/hotspot/test/gc/7168848/HumongousAlloc.java	Thu Oct 24 16:52:27 2013 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-/*
- * Copyright (c) 2012, Oracle and/or its affiliates. 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 Humongous.java
- * @bug 7168848
- * @summary G1: humongous object allocations should initiate marking cycles when necessary
- * @run main/othervm -Xms100m -Xmx100m -XX:+PrintGC -XX:G1HeapRegionSize=1m -XX:+UseG1GC  HumongousAlloc
- *
- */
-import java.lang.management.GarbageCollectorMXBean;
-import java.lang.management.ManagementFactory;
-import java.util.List;
-
-public class HumongousAlloc {
-
-    public static byte[] dummy;
-    private static int sleepFreq = 40;
-    private static int sleepTime = 1000;
-    private static double size = 0.75;
-    private static int iterations = 50;
-    private static int MB = 1024 * 1024;
-
-    public static void allocate(int size, int sleepTime, int sleepFreq) throws InterruptedException {
-        System.out.println("Will allocate objects of size: " + size
-                + " bytes and sleep for " + sleepTime
-                + " ms after every " + sleepFreq + "th allocation.");
-        int count = 0;
-        while (count < iterations) {
-            for (int i = 0; i < sleepFreq; i++) {
-                dummy = new byte[size - 16];
-            }
-            Thread.sleep(sleepTime);
-            count++;
-        }
-    }
-
-    public static void main(String[] args) throws InterruptedException {
-        allocate((int) (size * MB), sleepTime, sleepFreq);
-        List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
-        for (GarbageCollectorMXBean collector : collectors) {
-            if (collector.getName().contains("G1 Old")) {
-               long count = collector.getCollectionCount();
-                if (count > 0) {
-                    throw new RuntimeException("Failed: FullGCs should not have happened. The number of FullGC run is " + count);
-                }
-                else {
-                    System.out.println("Passed.");
-                }
-            }
-        }
-    }
-}
-