Mercurial > hg > graal-compiler
view test/compiler/6797305/Test6797305.java @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2009, 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 * @bug 6797305 * @summary Add LoadUB and LoadUI opcode class * * @run main/othervm -Xcomp -XX:CompileOnly=Test6797305.loadB,Test6797305.loadB2L,Test6797305.loadUB,Test6797305.loadUBmask,Test6797305.loadUB2L,Test6797305.loadS,Test6797305.loadS2L,Test6797305.loadUS,Test6797305.loadUSmask,Test6797305.loadUS2L,Test6797305.loadI,Test6797305.loadI2L,Test6797305.loadUI2L,Test6797305.loadL Test6797305 */ public class Test6797305 { static final byte[] ba = new byte[] { -1 }; static final short[] sa = new short[] { -1 }; static final int[] ia = new int[] { -1 }; static final long[] la = new long[] { -1 }; public static void main(String[] args) { long b = loadB(ba); if (b != -1) throw new InternalError("loadB failed: " + b + " != " + -1); long b2l = loadB2L(ba); if (b2l != -1L) throw new InternalError("loadB2L failed: " + b2l + " != " + -1L); int ub = loadUB(ba); if (ub != 0xFF) throw new InternalError("loadUB failed: " + ub + " != " + 0xFF); int ubmask = loadUBmask(ba); if (ubmask != 0xFE) throw new InternalError("loadUBmask failed: " + ubmask + " != " + 0xFE); long ub2l = loadUB2L(ba); if (ub2l != 0xFFL) throw new InternalError("loadUB2L failed: " + ub2l + " != " + 0xFFL); int s = loadS(sa); if (s != -1) throw new InternalError("loadS failed: " + s + " != " + -1); long s2l = loadS2L(sa); if (s2l != -1L) throw new InternalError("loadS2L failed: " + s2l + " != " + -1L); int us = loadUS(sa); if (us != 0xFFFF) throw new InternalError("loadUS failed: " + us + " != " + 0xFFFF); int usmask = loadUSmask(sa); if (usmask != 0xFFFE) throw new InternalError("loadUBmask failed: " + ubmask + " != " + 0xFFFE); long us2l = loadUS2L(sa); if (us2l != 0xFFFFL) throw new InternalError("loadUS2L failed: " + us2l + " != " + 0xFFFFL); int i = loadI(ia); if (i != -1) throw new InternalError("loadI failed: " + i + " != " + -1); long i2l = loadI2L(ia); if (i2l != -1L) throw new InternalError("loadI2L failed: " + i2l + " != " + -1L); long ui2l = loadUI2L(ia); if (ui2l != 0xFFFFFFFFL) throw new InternalError("loadUI2L failed: " + ui2l + " != " + 0xFFFFFFFFL); long l = loadL(la); if (l != -1L) throw new InternalError("loadL failed: " + l + " != " + -1L); } static int loadB (byte[] ba) { return ba[0]; } static long loadB2L (byte[] ba) { return ba[0]; } static int loadUB (byte[] ba) { return ba[0] & 0xFF; } static int loadUBmask(byte[] ba) { return ba[0] & 0xFE; } static long loadUB2L (byte[] ba) { return ba[0] & 0xFF; } static int loadS (short[] sa) { return sa[0]; } static long loadS2L (short[] sa) { return sa[0]; } static int loadUS (short[] sa) { return sa[0] & 0xFFFF; } static int loadUSmask(short[] sa) { return sa[0] & 0xFFFE; } static long loadUS2L (short[] sa) { return sa[0] & 0xFFFF; } static int loadI (int[] ia) { return ia[0]; } static long loadI2L (int[] ia) { return ia[0]; } static long loadUI2L (int[] ia) { return ia[0] & 0xFFFFFFFFL; } static long loadL (long[] la) { return la[0]; } }