123 lines
4.8 KiB
Java
123 lines
4.8 KiB
Java
/*
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* Copyright (c) 2013, 2023, 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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package gc.g1;
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/*
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* Common helpers for TestRemsetLogging* tests
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*/
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import jdk.test.whitebox.WhiteBox;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import java.util.ArrayList;
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import java.util.Arrays;
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class VerifySummaryOutput {
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public static void main(String[] args) {
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int numGCs = Integer.parseInt(args[0]);
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// Perform the requested amount of GCs.
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WhiteBox wb = WhiteBox.getWhiteBox();
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for (int i = 0; i < numGCs - 1; i++) {
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wb.youngGC();
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}
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if (numGCs > 0) {
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wb.fullGC();
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}
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}
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}
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public class TestRemsetLoggingTools {
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public static String runTest(String[] additionalArgs, int numGCs) throws Exception {
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ArrayList<String> finalargs = new ArrayList<String>();
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String[] defaultArgs = new String[] {
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"-Xbootclasspath/a:.",
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"-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
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"-cp", System.getProperty("java.class.path"),
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"-XX:+UseG1GC",
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"-Xmn4m",
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"-Xint", // -Xint makes the test run faster
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"-Xms20m",
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"-Xmx20m",
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"-XX:ParallelGCThreads=1",
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"-XX:InitiatingHeapOccupancyPercent=100", // we don't want the additional GCs due to marking
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:G1HeapRegionSize=1M",
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};
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finalargs.addAll(Arrays.asList(defaultArgs));
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if (additionalArgs != null) {
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finalargs.addAll(Arrays.asList(additionalArgs));
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}
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finalargs.add(VerifySummaryOutput.class.getName());
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finalargs.add(String.valueOf(numGCs));
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OutputAnalyzer output = ProcessTools.executeLimitedTestJava(finalargs);
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output.shouldHaveExitValue(0);
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String result = output.getStdout();
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return result;
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}
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private static void checkCounts(int expected, int actual, String which) throws Exception {
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if (expected != actual) {
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throw new Exception("RSet summaries mention " + which + " regions an incorrect number of times. Expected " + expected + ", got " + actual);
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}
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}
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public static void expectPerRegionRSetSummaries(String result, int expectedCumulative, int expectedPeriodic) throws Exception {
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expectRSetSummaries(result, expectedCumulative, expectedPeriodic);
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int actualYoung = result.split("Young regions").length - 1;
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int actualHumongous = result.split("Humongous regions").length - 1;
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int actualFree = result.split("Free regions").length - 1;
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int actualOther = result.split("Old regions").length - 1;
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// the strings we check for above are printed four times per summary
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int expectedPerRegionTypeInfo = (expectedCumulative + expectedPeriodic) * 4;
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checkCounts(expectedPerRegionTypeInfo, actualYoung, "Young");
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checkCounts(expectedPerRegionTypeInfo, actualHumongous, "Humongous");
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checkCounts(expectedPerRegionTypeInfo, actualFree, "Free");
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checkCounts(expectedPerRegionTypeInfo, actualOther, "Old");
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}
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public static void expectRSetSummaries(String result, int expectedCumulative, int expectedPeriodic) throws Exception {
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int actualTotal = result.split("Current rem set statistics").length - 1;
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int actualCumulative = result.split("Cumulative RS summary").length - 1;
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if (expectedCumulative != actualCumulative) {
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throw new Exception("Incorrect amount of RSet summaries at the end. Expected " + expectedCumulative + ", got " + actualCumulative);
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}
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if (expectedPeriodic != (actualTotal - actualCumulative)) {
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throw new Exception("Incorrect amount of per-period RSet summaries at the end. Expected " + expectedPeriodic + ", got " + (actualTotal - actualCumulative));
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}
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}
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}
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