benchmarks/src/main/java/org/opendaylight/yangtools/yang/data/impl/tree/InMemoryDataTreeBenchmark.java

   1 /**
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.yang.data.impl.tree;
   9
  10 import java.io.IOException;
  11 import java.util.concurrent.TimeUnit;
  12 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  13 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  14 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  15 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  16 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  17 import org.opendaylight.yangtools.yang.data.api.schema.tree.*;
  18 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  19 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
  20 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  21 import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
  22 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  23 import org.openjdk.jmh.annotations.*;
  24 import org.openjdk.jmh.runner.Runner;
  25 import org.openjdk.jmh.runner.RunnerException;
  26 import org.openjdk.jmh.runner.options.Options;
  27 import org.openjdk.jmh.runner.options.OptionsBuilder;
  28
  29 /**
  30  * Benchmarking of InMemoryDataTree performance.
  31  *
  32  * JMH is used for microbenchmarking.
  33  *
  34  * @author Lukas Sedlak <lsedlak@cisco.com>
  35  *
  36  * @see <a href="http://openjdk.java.net/projects/code-tools/jmh/">JMH</a>
  37  */
  38 @State(Scope.Thread)
  39 @BenchmarkMode(Mode.AverageTime)
  40 @OutputTimeUnit(TimeUnit.MILLISECONDS)
  41 public class InMemoryDataTreeBenchmark {
  42
  43     private static final int OUTER_LIST_100K = 100000;
  44     private static final int OUTER_LIST_50K = 50000;
  45     private static final int OUTER_LIST_10K = 10000;
  46
  47     private static final YangInstanceIdentifier[] OUTER_LIST_100K_PATHS = initOuterListPaths(OUTER_LIST_100K);
  48     private static final YangInstanceIdentifier[] OUTER_LIST_50K_PATHS = initOuterListPaths(OUTER_LIST_50K);
  49     private static final YangInstanceIdentifier[] OUTER_LIST_10K_PATHS = initOuterListPaths(OUTER_LIST_10K);
  50
  51     private static YangInstanceIdentifier[] initOuterListPaths(final int outerListPathsCount) {
  52         final YangInstanceIdentifier[] paths = new YangInstanceIdentifier[outerListPathsCount];
  53
  54         for (int outerListKey = 0; outerListKey < outerListPathsCount; ++outerListKey) {
  55             paths[outerListKey] = YangInstanceIdentifier.builder(BenchmarkModel.OUTER_LIST_PATH)
  56                 .nodeWithKey(BenchmarkModel.OUTER_LIST_QNAME, BenchmarkModel.ID_QNAME, outerListKey)
  57                 .build();
  58         }
  59         return paths;
  60     }
  61
  62     private static final MapNode ONE_ITEM_INNER_LIST = initInnerListItems(1);
  63     private static final MapNode TWO_ITEM_INNER_LIST = initInnerListItems(2);
  64     private static final MapNode TEN_ITEM_INNER_LIST = initInnerListItems(10);
  65
  66     private static MapNode initInnerListItems(final int count) {
  67         final CollectionNodeBuilder<MapEntryNode, MapNode> mapEntryBuilder = ImmutableNodes
  68             .mapNodeBuilder(BenchmarkModel.INNER_LIST_QNAME);
  69
  70         for (int i = 1; i <= count; ++i) {
  71             mapEntryBuilder
  72                 .withChild(ImmutableNodes.mapEntry(BenchmarkModel.INNER_LIST_QNAME, BenchmarkModel.NAME_QNAME, i));
  73         }
  74
  75         return mapEntryBuilder.build();
  76     }
  77
  78     private static final NormalizedNode<?, ?>[] OUTER_LIST_ONE_ITEM_INNER_LIST = initOuterListItems(OUTER_LIST_100K, ONE_ITEM_INNER_LIST);
  79     private static final NormalizedNode<?, ?>[] OUTER_LIST_TWO_ITEM_INNER_LIST = initOuterListItems(OUTER_LIST_50K, TWO_ITEM_INNER_LIST);
  80     private static final NormalizedNode<?, ?>[] OUTER_LIST_TEN_ITEM_INNER_LIST = initOuterListItems(OUTER_LIST_10K, TEN_ITEM_INNER_LIST);
  81
  82     private static NormalizedNode<?,?>[] initOuterListItems(int outerListItemsCount, MapNode innerList) {
  83         final NormalizedNode<?,?>[] outerListItems = new NormalizedNode[outerListItemsCount];
  84
  85         for (int i = 0; i < outerListItemsCount; ++i) {
  86             int outerListKey = i;
  87             outerListItems[i] = ImmutableNodes.mapEntryBuilder(BenchmarkModel.OUTER_LIST_QNAME, BenchmarkModel.ID_QNAME, outerListKey)
  88                 .withChild(innerList).build();
  89         }
  90         return outerListItems;
  91     }
  92
  93     private SchemaContext schemaContext;
  94     private DataTree datastore;
  95
  96     public static void main(String... args) throws IOException, RunnerException {
  97         Options opt = new OptionsBuilder()
  98             .include(".*" + InMemoryDataTreeBenchmark.class.getSimpleName() + ".*")
  99             .forks(1)
 100             .build();
 101
 102         new Runner(opt).run();
 103     }
 104
 105     @Setup(Level.Trial)
 106     public void setup() throws DataValidationFailedException {
 107         schemaContext = BenchmarkModel.createTestContext();
 108         final InMemoryDataTreeFactory factory = InMemoryDataTreeFactory.getInstance();
 109         datastore = factory.create();
 110         datastore.setSchemaContext(schemaContext);
 111         final DataTreeSnapshot snapshot = datastore.takeSnapshot();
 112         initTestNode(snapshot);
 113     }
 114
 115     @TearDown
 116     public void tearDown() {
 117         schemaContext = null;
 118         datastore = null;
 119     }
 120
 121     private void initTestNode(final DataTreeSnapshot snapshot) throws DataValidationFailedException {
 122         final DataTreeModification modification = snapshot.newModification();
 123         final YangInstanceIdentifier testPath = YangInstanceIdentifier.builder(BenchmarkModel.TEST_PATH)
 124             .build();
 125
 126         modification.write(testPath, provideOuterListNode());
 127         datastore.validate(modification);
 128         final DataTreeCandidate candidate = datastore.prepare(modification);
 129         datastore.commit(candidate);
 130     }
 131
 132     private DataContainerChild<?, ?> provideOuterListNode() {
 133         return ImmutableContainerNodeBuilder
 134             .create()
 135             .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(BenchmarkModel.TEST_QNAME))
 136             .withChild(
 137                 ImmutableNodes.mapNodeBuilder(BenchmarkModel.OUTER_LIST_QNAME)
 138                     .build()).build();
 139     }
 140
 141     @Benchmark
 142     @Warmup(iterations = 10, timeUnit = TimeUnit.MILLISECONDS)
 143     @Measurement(iterations = 20, timeUnit = TimeUnit.MILLISECONDS)
 144     public void singleNodes100KWriteBenchmark() throws Exception {
 145         applyWriteSingleNode(OUTER_LIST_100K);
 146     }
 147
 148     private void applyWriteSingleNode(final int reps) throws DataValidationFailedException {
 149         final DataTreeSnapshot snapshot = datastore.takeSnapshot();
 150         final DataTreeModification modification = snapshot.newModification();
 151         for (int outerListKey = 0; outerListKey < reps; ++outerListKey) {
 152             modification.write(OUTER_LIST_100K_PATHS[outerListKey], OUTER_LIST_ONE_ITEM_INNER_LIST[outerListKey]);
 153         }
 154         datastore.validate(modification);
 155         final DataTreeCandidate candidate = datastore.prepare(modification);
 156         datastore.commit(candidate);
 157     }
 158
 159     @Benchmark
 160     @Warmup(iterations = 10, timeUnit = TimeUnit.MILLISECONDS)
 161     @Measurement(iterations = 20, timeUnit = TimeUnit.MILLISECONDS)
 162     public void twoNodes50KWriteBenchmark() throws Exception {
 163         applyWriteTwoNodes(OUTER_LIST_50K);
 164     }
 165
 166     private void applyWriteTwoNodes(final int reps) throws DataValidationFailedException {
 167         final DataTreeSnapshot snapshot = datastore.takeSnapshot();
 168         final DataTreeModification modification = snapshot.newModification();
 169         for (int outerListKey = 0; outerListKey < reps; ++outerListKey) {
 170             modification.write(OUTER_LIST_50K_PATHS[outerListKey], OUTER_LIST_TWO_ITEM_INNER_LIST[outerListKey]);
 171         }
 172         datastore.validate(modification);
 173         final DataTreeCandidate candidate = datastore.prepare(modification);
 174         datastore.commit(candidate);
 175     }
 176
 177     @Benchmark
 178     @Warmup(iterations = 10, timeUnit = TimeUnit.MILLISECONDS)
 179     @Measurement(iterations = 20, timeUnit = TimeUnit.MILLISECONDS)
 180     public void tenNodes10KWriteBenchmark() throws Exception {
 181         applyWriteTenNodes(OUTER_LIST_10K);
 182     }
 183
 184     private void applyWriteTenNodes(final int reps) throws DataValidationFailedException {
 185         final DataTreeSnapshot snapshot = datastore.takeSnapshot();
 186         final DataTreeModification modification = snapshot.newModification();
 187         for (int outerListKey = 0; outerListKey < reps; ++outerListKey) {
 188             modification.write(OUTER_LIST_10K_PATHS[outerListKey], OUTER_LIST_TEN_ITEM_INNER_LIST[outerListKey]);
 189         }
 190         datastore.validate(modification);
 191         final DataTreeCandidate candidate = datastore.prepare(modification);
 192         datastore.commit(candidate);
 193     }
 194 }