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profiling.core: add sampled callgraph from incubator
[Added] Sampling callgraph module to profiling.core Signed-off-by: Arnaud Fiorini <fiorini.arnaud@gmail.com>
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153
...se/tracecompass/analysis/profiling/core/tests/callgraph/sampled/SampledCallGraphTest.java
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| /******************************************************************************* | ||
| * Copyright (c) 2017 École Polytechnique de Montréal | ||
| * | ||
| * All rights reserved. This program and the accompanying materials are | ||
| * made available under the terms of the Eclipse Public License 2.0 which | ||
| * accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| *******************************************************************************/ | ||
|
|
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| package org.eclipse.tracecompass.analysis.profiling.core.tests.callgraph.sampled; | ||
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| import static org.junit.Assert.assertEquals; | ||
| import static org.junit.Assert.assertNotNull; | ||
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| import java.util.Collection; | ||
| import java.util.Collections; | ||
| import java.util.Map; | ||
|
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| import org.eclipse.jdt.annotation.NonNull; | ||
| import org.eclipse.jdt.annotation.Nullable; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.base.ICallStackElement; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.callgraph.AggregatedCallSite; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.callgraph.CallGraph; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.callstack2.CallStackElement; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.sampled.callgraph.ProfilingCallGraphAnalysisModule; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.tests.CallStackTestBase2; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.tree.IWeightedTreeGroupDescriptor; | ||
| import org.eclipse.tracecompass.internal.analysis.profiling.core.tree.AllGroupDescriptor; | ||
| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | ||
| import org.eclipse.tracecompass.tmf.core.util.Pair; | ||
| import org.junit.Test; | ||
|
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| /** | ||
| * Test profiling data where the input are stack traces from events | ||
| * | ||
| * @author Geneviève Bastien | ||
| */ | ||
| public class SampledCallGraphTest { | ||
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| private static final long @NonNull [] CALLSITE_1 = { 1, 2, 3, 4 }; | ||
| private static final long @NonNull [] CALLSITE_2 = { 1, 2, 3 }; | ||
| private static final long @NonNull [] CALLSITE_3 = { 1, 2, 3, 4 }; | ||
| private static final long @NonNull [] CALLSITE_4 = { 1, 3, 4 }; | ||
| private static final long @NonNull [] CALLSITE_5 = { 1, 2, 5 }; | ||
| private static final long @NonNull [] CALLSITE_6 = { 1, 2, 5, 4 }; | ||
| private static final long @NonNull [] CALLSITE_7 = { 10, 11, 12 }; | ||
| private static final long @NonNull [] CALLSITE_8 = { 10, 11 }; | ||
| private static final long @NonNull [] CALLSITE_9 = { 1, 2, 3, 4 }; | ||
| private static final long @NonNull [] CALLSITE_10 = { 1, 2, 4, 5 }; | ||
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| /** | ||
| * A default implementation of the profiling call graph analysis for test | ||
| * purposes | ||
| */ | ||
| private static class TestProfilingAnalysis extends ProfilingCallGraphAnalysisModule { | ||
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| private final @NonNull ICallStackElement fOneElement; | ||
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| public TestProfilingAnalysis() { | ||
| ICallStackElement element = new CallStackElement("test", AllGroupDescriptor.getInstance()); | ||
| addRootElement(element); | ||
| fOneElement = element; | ||
| } | ||
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| public @NonNull ICallStackElement getElement() { | ||
| return fOneElement; | ||
| } | ||
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| @Override | ||
| public Collection<IWeightedTreeGroupDescriptor> getGroupDescriptors() { | ||
| return Collections.singleton(AllGroupDescriptor.getInstance()); | ||
| } | ||
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| @Override | ||
| public Map<String, Collection<Object>> getCallStack(@NonNull ITmfEvent event) { | ||
| return Collections.emptyMap(); | ||
| } | ||
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| @Override | ||
| protected @Nullable Pair<@NonNull ICallStackElement, @NonNull AggregatedCallSite> getProfiledStackTrace(@NonNull ITmfEvent event) { | ||
| return null; | ||
| } | ||
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| } | ||
|
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| /** | ||
| * Test a full sampling for one group | ||
| */ | ||
| @Test | ||
| public void testStackTraces() { | ||
| TestProfilingAnalysis pg = new TestProfilingAnalysis(); | ||
| try { | ||
| ICallStackElement element = pg.getElement(); | ||
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| CallGraph cg = pg.getCallGraph(); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_1, 1)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_2, 2)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_3, 3)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_4, 4)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_5, 5)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_6, 6)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_7, 7)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_8, 8)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_9, 9)); | ||
| cg.addAggregatedCallSite(element, pg.getCallSite(element, CALLSITE_10, 10)); | ||
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| Collection<AggregatedCallSite> aggregatedData = cg.getCallingContextTree(element); | ||
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| assertNotNull(aggregatedData); | ||
| assertEquals(2, aggregatedData.size()); | ||
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| for (AggregatedCallSite callsite : aggregatedData) { | ||
| switch (CallStackTestBase2.getCallSiteSymbol(callsite).resolve(Collections.emptySet())) { | ||
| case "0x1": { | ||
| assertEquals(8, callsite.getWeight()); | ||
| assertEquals(2, callsite.getCallees().size()); | ||
| for (AggregatedCallSite childCallsite : callsite.getCallees()) { | ||
| switch (CallStackTestBase2.getCallSiteSymbol(childCallsite).resolve(Collections.emptySet())) { | ||
| case "0x2": | ||
| assertEquals(7, childCallsite.getWeight()); | ||
| assertEquals(3, childCallsite.getCallees().size()); | ||
| break; | ||
| case "0x3": | ||
| assertEquals(1, childCallsite.getWeight()); | ||
| assertEquals(1, childCallsite.getCallees().size()); | ||
| break; | ||
| default: | ||
| throw new IllegalStateException("Unknown callsite: " + CallStackTestBase2.getCallSiteSymbol(childCallsite)); | ||
| } | ||
| } | ||
| } | ||
| break; | ||
| case "0xa": { | ||
| assertEquals(2, callsite.getWeight()); | ||
| assertEquals(1, callsite.getCallees().size()); | ||
| AggregatedCallSite childCallsite = callsite.getCallees().iterator().next(); | ||
| assertEquals(2, childCallsite.getWeight()); | ||
| assertEquals(1, callsite.getCallees().size()); | ||
| } | ||
| break; | ||
| default: | ||
| throw new IllegalStateException("Unknown callsite: " + CallStackTestBase2.getCallSiteSymbol(callsite)); | ||
| } | ||
| } | ||
| } finally { | ||
| pg.dispose(); | ||
| } | ||
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| } | ||
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| } |
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38 changes: 38 additions & 0 deletions
38
...c/org/eclipse/tracecompass/analysis/profiling/core/callstack/IEventCallStackProvider.java
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| @@ -0,0 +1,38 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2017 École Polytechnique de Montréal | ||
| * | ||
| * All rights reserved. This program and the accompanying materials are | ||
| * made available under the terms of the Eclipse Public License 2.0 which | ||
| * accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| *******************************************************************************/ | ||
|
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| package org.eclipse.tracecompass.analysis.profiling.core.callstack; | ||
|
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| import java.util.Collection; | ||
| import java.util.Map; | ||
|
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| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | ||
|
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| /** | ||
| * An interface that analyses can implement if they can provide a stack of | ||
| * called function for a single event. | ||
| * | ||
| * @author Geneviève Bastien | ||
| * @since 2.5 | ||
| */ | ||
| public interface IEventCallStackProvider { | ||
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| /** | ||
| * Get the callstack from an event | ||
| * | ||
| * @param event | ||
| * The event for which to get the stack | ||
| * @return The callstack for the event, grouped by some domain, where the | ||
| * first element of each collection is the root. | ||
| */ | ||
| Map<String, Collection<Object>> getCallStack(ITmfEvent event); | ||
|
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| } |
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46 changes: 46 additions & 0 deletions
46
...eclipse/tracecompass/analysis/profiling/core/sampled/callgraph/AggregatedStackTraces.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2017 École Polytechnique de Montréal | ||
| * | ||
| * All rights reserved. This program and the accompanying materials are | ||
| * made available under the terms of the Eclipse Public License 2.0 which | ||
| * accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| *******************************************************************************/ | ||
|
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| package org.eclipse.tracecompass.analysis.profiling.core.sampled.callgraph; | ||
|
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| import org.eclipse.tracecompass.analysis.profiling.core.base.ICallStackSymbol; | ||
| import org.eclipse.tracecompass.analysis.profiling.core.callgraph.AggregatedCallSite; | ||
|
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| /** | ||
| * A data structure aggregating data from the callstack for sampled call stack | ||
| * data. It counts the number of times each frame pointer was present in a given | ||
| * stack | ||
| * | ||
| * @author Geneviève Bastien | ||
| * @since 2.5 | ||
| */ | ||
| public class AggregatedStackTraces extends AggregatedCallSite { | ||
|
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| /** | ||
| * Constructor | ||
| * | ||
| * @param symbol | ||
| * The symbol for this frame pointer | ||
| */ | ||
| public AggregatedStackTraces(ICallStackSymbol symbol) { | ||
| super(symbol, 1); | ||
| } | ||
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| private AggregatedStackTraces(AggregatedStackTraces toCopy) { | ||
| super(toCopy); | ||
| } | ||
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| @Override | ||
| public AggregatedStackTraces copyOf() { | ||
| return new AggregatedStackTraces(this); | ||
| } | ||
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| } |
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