hotspot/test/gc/g1/TestSummarizeRSetStats.java
author tschatzl
Thu, 26 Sep 2013 12:49:45 +0200
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8014078: G1: improve remembered set summary information by providing per region type information Summary: Add memory consumption breakdown on a per region type in the G1 remembered set summary statistics. This simplifies remembered set memory consumption analysis. Reviewed-by: brutisso
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/*
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 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test TestSummarizeRSetStats.java
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 * @bug 8013895
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 * @library /testlibrary
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 * @build TestSummarizeRSetStatsTools TestSummarizeRSetStats
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 * @summary Verify output of -XX:+G1SummarizeRSetStats
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 * @run main TestSummarizeRSetStats
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 *
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 * Test the output of G1SummarizeRSetStats in conjunction with G1SummarizeRSetStatsPeriod.
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 */
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public class TestSummarizeRSetStats {
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    public static void main(String[] args) throws Exception {
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        String result;
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        if (!TestSummarizeRSetStatsTools.testingG1GC()) {
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            return;
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        }
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        // no remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(null, 0);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
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        // no remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(null, 2);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
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        // no remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
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        // single remembered set summary output at the end
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
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        // single remembered set summary output at the end
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
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        // single remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
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        // two times remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2);
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        // four times remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 6);
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        // three times remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 4);
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        // single remembered set summary output
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        result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3);
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        TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2);
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    }
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}
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