Mercurial > hg > graal-jvmci-8
view test/gc/g1/TestSummarizeRSetStatsPerRegion.java @ 14303:893ce66f7473
8027476: Improve performance of Stringtable unlink
8027455: Improve symbol table scan times during gc pauses
Summary: Parallelize string table and symbol table scan during remark and full GC. Some additional statistics output if the experimental flag G1TraceStringSymbolTableScrubbing is set.
Reviewed-by: mgerdin, coleenp, brutisso
author | tschatzl |
---|---|
date | Mon, 20 Jan 2014 11:47:07 +0100 |
parents | c319b188c7b2 |
children |
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/* * Copyright (c) 2013, 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 TestSummarizeRSetStatsPerRegion.java * @bug 8014078 * @library /testlibrary * @build TestSummarizeRSetStatsTools TestSummarizeRSetStatsPerRegion * @summary Verify output of -XX:+G1SummarizeRSetStats in regards to per-region type output * @run main TestSummarizeRSetStatsPerRegion */ import com.oracle.java.testlibrary.*; import java.lang.Thread; import java.util.ArrayList; import java.util.Arrays; public class TestSummarizeRSetStatsPerRegion { public static void main(String[] args) throws Exception { String result; if (!TestSummarizeRSetStatsTools.testingG1GC()) { return; } // single remembered set summary output at the end result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0); TestSummarizeRSetStatsTools.expectPerRegionRSetSummaries(result, 1, 0); // two times remembered set summary output result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1); TestSummarizeRSetStatsTools.expectPerRegionRSetSummaries(result, 1, 2); } }