Thu, 29 Nov 2012 11:30:04 -0800
Added tag jdk8-b66 for changeset 01684f7fee1b
never@1444 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
never@1444 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
never@1444 | 4 | * |
never@1444 | 5 | * This code is free software; you can redistribute it and/or modify it |
never@1444 | 6 | * under the terms of the GNU General Public License version 2 only, as |
never@1444 | 7 | * published by the Free Software Foundation. |
never@1444 | 8 | * |
never@1444 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
never@1444 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
never@1444 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
never@1444 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
never@1444 | 13 | * accompanied this code). |
never@1444 | 14 | * |
never@1444 | 15 | * You should have received a copy of the GNU General Public License version |
never@1444 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
never@1444 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
never@1444 | 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. |
never@1444 | 22 | * |
never@1444 | 23 | */ |
never@1444 | 24 | |
never@1444 | 25 | /** |
never@1444 | 26 | * @test |
never@1444 | 27 | * @bug 6885584 |
never@1444 | 28 | * @summary A particular class structure causes large allocation spike for jit |
never@1444 | 29 | * |
never@1444 | 30 | * @run main/othervm -Xbatch Test6885584 |
never@1444 | 31 | */ |
never@1444 | 32 | |
never@1444 | 33 | |
never@1444 | 34 | |
never@1444 | 35 | public class Test6885584 { |
never@1444 | 36 | static private int i1; |
never@1444 | 37 | static private int i2; |
never@1444 | 38 | static private int i3; |
never@1444 | 39 | |
never@1444 | 40 | static int limit = Integer.MAX_VALUE - 8; |
never@1444 | 41 | |
never@1444 | 42 | public static void main(String args[]) { |
never@1444 | 43 | // Run long enough to trigger an OSR |
never@1444 | 44 | for(int j = 200000; j != 0; j--) { |
never@1444 | 45 | } |
never@1444 | 46 | |
never@1444 | 47 | // This must reference a field |
never@1444 | 48 | i1 = i2; |
never@1444 | 49 | |
never@1444 | 50 | // The resource leak is roughly proportional to this initial value |
never@1444 | 51 | for(int k = Integer.MAX_VALUE - 1; k != 0; k--) { |
never@1444 | 52 | // Make sure the body does some work |
never@1444 | 53 | if(i2 > i3)i1 = k; |
never@1444 | 54 | if (k <= limit) break; |
never@1444 | 55 | } |
never@1444 | 56 | } |
never@1444 | 57 | |
never@1444 | 58 | } |