204 lines
8.4 KiB
Java
204 lines
8.4 KiB
Java
/*
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* Copyright (c) 2016, 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 TestPLABEvacuationFailure
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* @bug 8148376
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* @summary Checks PLAB statistics on evacuation/allocation failure
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* @requires vm.gc.G1
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc
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* @modules java.management
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* @run main gc.g1.plab.TestPLABEvacuationFailure
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*/
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package gc.g1.plab;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.Utils;
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import gc.g1.plab.lib.LogParser;
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import gc.g1.plab.lib.AppPLABEvacuationFailure;
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import gc.g1.plab.lib.PlabInfo;
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/**
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* The test runs the AppPLABEvacuationFailure application to provoke a number of
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* Evacuation Failures, parses GC log and analyzes PLAB statistics. The test checks
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* that both fields 'failure_waste' and 'failure_used' for Evacuation Failure statistic
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* are non zero, and zero for other statistics.
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*/
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public class TestPLABEvacuationFailure {
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/* PLAB statistics fields which are checked.
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* Test expects to find 0 in this fields in survivor statistics.
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* Expects to find 0 in old statistics for GC when evacuation failure
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* did not happen. And expects to find not 0 in old statistics in case when
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* GC causes to evacuation failure.
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*/
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private static final List<String> FAILURE_STAT_FIELDS = new ArrayList<>(Arrays.asList(
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"failure used",
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"failure wasted"));
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private static final String[] COMMON_OPTIONS = {
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"-Xlog:gc,gc+plab=debug",
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"-XX:+UseG1GC",
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"-XX:InitiatingHeapOccupancyPercent=100",
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"-XX:-G1UseAdaptiveIHOP",
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"-XX:G1HeapRegionSize=1m"};
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private static final Pattern GC_ID_PATTERN = Pattern.compile("GC\\((\\d+)\\)");
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private static List<Long> evacuationFailureIDs;
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private static LogParser logParser;
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private static String appPlabEvacFailureOutput;
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public static void main(String[] args) throws Throwable {
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// ParallelGCBufferWastePct, PLAB Size, ParallelGCBufferWastePct, MaxHeapSize, is plab fixed.
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runTest(10, 1024, 3, 16, true);
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runTest(15, 2048, 4, 256, true);
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runTest(20, 65536, 7, 128, false);
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runTest(25, 1024, 3, 16, true);
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runTest(30, 16384, 7, 256, false);
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runTest(10, 65536, 4, 32, false);
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}
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private static void runTest(int wastePct, int plabSize, int parGCThreads, int heapSize, boolean plabIsFixed) throws Throwable {
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System.out.println("Test case details:");
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System.out.println(" Heap size : " + heapSize + "M");
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System.out.println(" Initial PLAB size : " + plabSize);
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System.out.println(" Parallel GC buffer waste pct : " + wastePct);
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System.out.println(" Parallel GC threads : " + parGCThreads);
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System.out.println(" PLAB size is fixed: " + (plabIsFixed ? "yes" : "no"));
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// Set up test GC and PLAB options
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List<String> testOptions = new ArrayList<>();
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Collections.addAll(testOptions, COMMON_OPTIONS);
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Collections.addAll(testOptions, Utils.getTestJavaOpts());
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Collections.addAll(testOptions,
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"-XX:ParallelGCThreads=" + parGCThreads,
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"-XX:ParallelGCBufferWastePct=" + wastePct,
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"-XX:OldPLABSize=" + plabSize,
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"-XX:YoungPLABSize=" + plabSize,
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"-XX:" + (plabIsFixed ? "-" : "+") + "ResizePLAB",
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"-XX:MaxHeapSize=" + heapSize + "m");
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testOptions.add(AppPLABEvacuationFailure.class.getName());
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OutputAnalyzer out = ProcessTools.executeTestJava(testOptions);
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appPlabEvacFailureOutput = out.getOutput();
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if (out.getExitValue() != 0) {
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System.out.println(appPlabEvacFailureOutput);
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throw new RuntimeException("Expect exit code 0.");
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}
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// Get list of GC ID on evacuation failure
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evacuationFailureIDs = getGcIdPlabEvacFailures(out);
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logParser = new LogParser(appPlabEvacFailureOutput);
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checkResults();
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}
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private static void checkResults() {
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if (evacuationFailureIDs.isEmpty()) {
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System.out.println(appPlabEvacFailureOutput);
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throw new RuntimeException("AppPLABEvacuationFailure did not reach Evacuation Failure.");
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}
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Map<Long, PlabInfo> valuesToCheck = getNonEvacFailureSurvivorStats();
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checkValuesIsZero(valuesToCheck, "Expect that SURVIVOR PLAB failure statistics should be 0 when no evacuation failure");
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valuesToCheck = getNonEvacFailureOldStats();
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checkValuesIsZero(valuesToCheck, "Expect that OLD PLAB failure statistics should be 0 when no evacuation failure");
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valuesToCheck = getEvacFailureSurvivorStats();
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checkValuesIsZero(valuesToCheck, "Expect that failure statistics should be 0 in SURVIVOR PLAB statistics at evacuation failure");
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valuesToCheck = getEvacFailureOldStats();
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checkValuesIsNotZero(valuesToCheck, "Expect that failure statistics should not be 0 in OLD PLAB statistics at evacuation failure");
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}
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/**
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* Checks logItems for non-zero values. Throws RuntimeException if found.
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*
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* @param logItems
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* @param errorMessage
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*/
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private static void checkValuesIsZero(Map<Long, PlabInfo> logItems, String errorMessage) {
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checkValues(logItems, errorMessage, true);
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}
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/**
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* Checks logItems for zero values. Throws RuntimeException if found.
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*
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* @param logItems
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* @param errorMessage
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*/
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private static void checkValuesIsNotZero(Map<Long, PlabInfo> logItems, String errorMessage) {
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checkValues(logItems, errorMessage, false);
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}
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private static void checkValues(Map<Long, PlabInfo> logItems, String errorMessage, boolean expectZero) {
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logItems.entrySet()
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.forEach(item -> item.getValue()
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.values()
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.forEach(items -> {
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if (expectZero != (items == 0)) {
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System.out.println(appPlabEvacFailureOutput);
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throw new RuntimeException(errorMessage);
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}
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})
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);
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}
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/**
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* For tracking PLAB statistics for specified PLAB type - survivor and old
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*/
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private static Map<Long, PlabInfo> getNonEvacFailureSurvivorStats() {
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return logParser.getExcludedSpecifiedStats(evacuationFailureIDs, LogParser.ReportType.SURVIVOR_STATS, FAILURE_STAT_FIELDS);
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}
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private static Map<Long, PlabInfo> getNonEvacFailureOldStats() {
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return logParser.getExcludedSpecifiedStats(evacuationFailureIDs, LogParser.ReportType.OLD_STATS, FAILURE_STAT_FIELDS);
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}
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private static Map<Long, PlabInfo> getEvacFailureSurvivorStats() {
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return logParser.getSpecifiedStats(evacuationFailureIDs, LogParser.ReportType.SURVIVOR_STATS, FAILURE_STAT_FIELDS);
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}
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private static Map<Long, PlabInfo> getEvacFailureOldStats() {
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return logParser.getSpecifiedStats(evacuationFailureIDs, LogParser.ReportType.OLD_STATS, FAILURE_STAT_FIELDS);
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}
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private static List<Long> getGcIdPlabEvacFailures(OutputAnalyzer out) {
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return out.asLines().stream()
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.filter(line -> line.contains("(Evacuation Failure"))
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.map(line -> LogParser.getGcIdFromLine(line, GC_ID_PATTERN))
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.collect(Collectors.toList());
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}
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}
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