/* * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * The contents of this file are subject to the terms of either the Universal Permissive License * v 1.0 as shown at http://oss.oracle.com/licenses/upl * * or the following license: * * Redistribution and use in source and binary forms, with or without modification, are permitted * provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of conditions * and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other materials provided with * the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used to * endorse or promote products derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.openjdk.jmc.flightrecorder.rules.jdk.memory; import java.text.MessageFormat; import java.util.Collection; import java.util.Collections; import java.util.List; import java.util.concurrent.Callable; import java.util.concurrent.FutureTask; import java.util.concurrent.RunnableFuture; import org.openjdk.jmc.common.IMCThread; import org.openjdk.jmc.common.collection.MapToolkit.IntEntry; import org.openjdk.jmc.common.item.IItemCollection; import org.openjdk.jmc.common.item.IItemFilter; import org.openjdk.jmc.common.item.ItemFilters; import org.openjdk.jmc.common.util.IPreferenceValueProvider; import org.openjdk.jmc.common.util.TypedPreference; import org.openjdk.jmc.flightrecorder.JfrAttributes; import org.openjdk.jmc.flightrecorder.jdk.JdkFilters; import org.openjdk.jmc.flightrecorder.jdk.JdkQueries; import org.openjdk.jmc.flightrecorder.jdk.JdkTypeIDs; import org.openjdk.jmc.flightrecorder.rules.IRule; import org.openjdk.jmc.flightrecorder.rules.Result; import org.openjdk.jmc.flightrecorder.rules.jdk.dataproviders.StacktraceDataProvider; import org.openjdk.jmc.flightrecorder.rules.jdk.messages.internal.Messages; import org.openjdk.jmc.flightrecorder.rules.util.JfrRuleTopics; import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit; import org.openjdk.jmc.flightrecorder.rules.util.RulesToolkit.EventAvailability; import org.openjdk.jmc.flightrecorder.stacktrace.FrameSeparator; import org.openjdk.jmc.flightrecorder.stacktrace.FrameSeparator.FrameCategorization; import org.openjdk.jmc.flightrecorder.stacktrace.StacktraceModel; import org.openjdk.jmc.flightrecorder.stacktrace.StacktraceModel.Fork; import org.owasp.encoder.Encode; public class AllocationByThreadRule implements IRule { private static final String THREAD_RESULT_ID = "Allocations.thread"; //$NON-NLS-1$ private Result getResult(IItemCollection items, IPreferenceValueProvider valueProvider) { EventAvailability eventAvailabilityInside = RulesToolkit.getEventAvailability(items, JdkTypeIDs.ALLOC_INSIDE_TLAB); EventAvailability eventAvailabilityOutside = RulesToolkit.getEventAvailability(items, JdkTypeIDs.ALLOC_OUTSIDE_TLAB); if (!RulesToolkit.isEventsEnabled(eventAvailabilityInside, eventAvailabilityOutside)) { return RulesToolkit.getEventAvailabilityResult(this, items, RulesToolkit.getLeastAvailable(eventAvailabilityInside, eventAvailabilityOutside), JdkTypeIDs.ALLOC_INSIDE_TLAB, JdkTypeIDs.ALLOC_OUTSIDE_TLAB); } if (!(eventAvailabilityInside == EventAvailability.AVAILABLE || eventAvailabilityOutside == EventAvailability.AVAILABLE)) { return RulesToolkit.getNotApplicableResult(this, MessageFormat.format(Messages.getString(Messages.General_RULE_REQUIRES_EVENTS_FROM_ONE_OF_MANY), JdkTypeIDs.ALLOC_INSIDE_TLAB + ", " + JdkTypeIDs.ALLOC_OUTSIDE_TLAB)); } List> entries = RulesToolkit.calculateGroupingScore(items.apply(JdkFilters.ALLOC_ALL), JfrAttributes.EVENT_THREAD); double balance = RulesToolkit.calculateBalanceScore(entries); IntEntry mostSignificant = entries.get(entries.size() - 1); // FIXME: Configuration attribute instead of hard coded 1000 tlabs => relevance 50 double relevance = RulesToolkit.mapExp100Y(mostSignificant.getValue(), 1000, 50); double score = balance * relevance * 0.74; // ceiling at 74; IItemFilter significantFilter = ItemFilters.and(JdkFilters.ALLOC_ALL, ItemFilters.equals(JfrAttributes.EVENT_THREAD, mostSignificant.getKey())); StacktraceModel stacktraceModel = new StacktraceModel(false, new FrameSeparator(FrameCategorization.METHOD, false), items.apply(significantFilter)); Fork rootFork = stacktraceModel.getRootFork(); String relevantTraceHtmlList = rootFork.getBranchCount() == 0 ? Messages.getString(Messages.General_NO_STACK_TRACE_AVAILABLE) : StacktraceDataProvider.getRelevantTraceHtmlList(rootFork.getBranch(0), rootFork.getItemsInFork()); String message = MessageFormat.format(Messages.getString(Messages.AllocationByThreadRule_TEXT_MESSAGE), Encode.forHtml(mostSignificant.getKey().getThreadName()), relevantTraceHtmlList); String longMessage = message + "

" + Messages.getString(Messages.AllocationRuleFactory_TEXT_THREAD_INFO_LONG); //$NON-NLS-1$ return new Result(this, score, message, longMessage, JdkQueries.ALLOC_INSIDE_TLAB_BY_THREAD); } @Override public RunnableFuture evaluate(final IItemCollection items, final IPreferenceValueProvider valueProvider) { FutureTask evaluationTask = new FutureTask<>(new Callable() { @Override public Result call() throws Exception { return getResult(items, valueProvider); } }); return evaluationTask; } @Override public Collection> getConfigurationAttributes() { return Collections.emptyList(); } @Override public String getId() { return THREAD_RESULT_ID; } @Override public String getName() { return Messages.getString(Messages.AllocationByThreadRule_RULE_NAME); } @Override public String getTopic() { return JfrRuleTopics.JAVA_APPLICATION_TOPIC; } }