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annotate test/gc/g1/TestGCLogMessages.java @ 17753:191174b49bec

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8035406: Improve data structure for Code Cache remembered sets Summary: Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time. Reviewed-by: mgerdin, brutisso
author tschatzl
date Mon, 24 Mar 2014 15:30:14 +0100
parents
children 96b1c2e06e25
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17753
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test TestPrintGCDetails
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26 * @bug 8035406
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27 * @summary Ensure that the PrintGCDetails output for a minor GC with G1
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28 * includes the expected necessary messages.
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29 * @key gc
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30 * @library /testlibrary
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31 */
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32
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33 import com.oracle.java.testlibrary.ProcessTools;
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34 import com.oracle.java.testlibrary.OutputAnalyzer;
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35
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36 public class TestGCLogMessages {
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37 public static void main(String[] args) throws Exception {
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38
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39 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
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40 "-Xmx10M",
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41 "-XX:+PrintGCDetails",
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42 GCTest.class.getName());
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43
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44 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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45
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46 output.shouldContain("[Code Root Purge");
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47 output.shouldHaveExitValue(0);
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48 }
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49
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50 static class GCTest {
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51 private static byte[] garbage;
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52 public static void main(String [] args) {
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53 System.out.println("Creating garbage");
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54 // create 128MB of garbage. This should result in at least one GC
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55 for (int i = 0; i < 1024; i++) {
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56 garbage = new byte[128 * 1024];
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57 }
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58 System.out.println("Done");
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59 }
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60 }
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61 }