IGNITE-27086 Optimize writing Map by BinaryWriterExImpl

modules/benchmarks/src/main/java/org/apache/ignite/internal/benchmarks/jmh/binary/JmhMapSerdesBenchmark.java

@@ -0,0 +1,112 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite.internal.benchmarks.jmh.binary;
+
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import org.apache.ignite.Ignition;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.internal.IgniteEx;
+import org.apache.ignite.internal.binary.BinaryContext;
+import org.apache.ignite.internal.binary.BinaryUtils;
+import org.apache.ignite.internal.binary.BinaryWriterEx;
+import org.apache.ignite.internal.binary.streams.BinaryOutputStream;
+import org.apache.ignite.internal.binary.streams.BinaryStreams;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.infra.Blackhole;
+
+import static java.util.concurrent.TimeUnit.NANOSECONDS;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static org.openjdk.jmh.annotations.Mode.AverageTime;
+import static org.openjdk.jmh.annotations.Scope.Thread;
+
+/** */
+@State(Thread)
+@OutputTimeUnit(NANOSECONDS)
+@BenchmarkMode(AverageTime)
+@Warmup(iterations = 3, time = 30, timeUnit = SECONDS)
+@Measurement(iterations = 3, time = 30, timeUnit = SECONDS)
+public class JmhMapSerdesBenchmark {
+    /** */
+    @Param({"5", "100000", "1000000"})
+    private String size;
+
+    /** */
+    @Param({"HashMap", "ConcurrentHashMap", "LinkedHashMap"})
+    private String mapType;
+
+    /** */
+    private BinaryContext bctx;
+
+    /** */
+    private BinaryOutputStream out;
+
+    /** */
+    private Map<Object, Object> data;
+
+    /** */
+    public static void main(String[] args) throws Exception {
+        org.openjdk.jmh.Main.main(new String[]{JmhMapSerdesBenchmark.class.getName()});
+    }
+
+    /** */
+    @Setup
+    public void setup() throws Exception {
+        IgniteEx node = (IgniteEx)Ignition.start(new IgniteConfiguration());
+
+        bctx = node.context().cacheObjects().binaryContext();
+        out = BinaryStreams.outputStream((int)(100 * U.MB));
+
+        Ignition.stopAll(false);
+
+        if ("HashMap".equals(mapType))
+            data = new HashMap<>();
+        else if ("ConcurrentHashMap".equals(mapType))
+            data = new ConcurrentHashMap<>();
+        else if ("LinkedHashMap".equals(mapType))
+            data = new LinkedHashMap<>();
+        else
+            throw new IllegalArgumentException("Unknown map type: " + mapType);
+
+        int sz = Integer.parseInt(size);
+        for (int i = 0; i < sz; i++)
+            data.put(i, i);
+    }
+
+    /** */
+    @Benchmark
+    public void mapSerialization(Blackhole bh) {
+        BinaryWriterEx writer = BinaryUtils.writer(bctx, out);
+
+        writer.writeMap(data);
+
+        out.position(0);
+
+        bh.consume(writer);
+    }
+}

modules/binary/api/src/main/java/org/apache/ignite/internal/binary/BinaryWriterExImpl.java

@@ -65,7 +65,7 @@ class BinaryWriterExImpl implements BinaryWriterEx {
     private int typeId;
 
     /** */
-    private final int start;
+    private int start;
 
     /** Raw offset position. */
     private int rawOffPos;
@@ -838,16 +838,27 @@ void writeBooleanField(@Nullable Boolean val) {
         if (obj == null)
             out.writeByte(GridBinaryMarshaller.NULL);
         else {
-            BinaryWriterExImpl writer = new BinaryWriterExImpl(
-                ctx,
-                out,
-                schema,
-                handles(),
-                failIfUnregistered,
-                GridBinaryMarshaller.UNREGISTERED_TYPE_ID
-            );
-
-            writer.marshal(obj);
+            // Store state.
+            int typeId0 = this.typeId;
+            int start0 = this.start;
+            int rawOffPos0 = this.rawOffPos;
+            int schemaId0 = this.schemaId;
+            int fieldCnt0 = this.fieldCnt;
+            BinaryInternalMapper mapper0 = this.mapper;
+
+            // Handles not cleared, because, in this mode they shared down to hierarchy.
+            clearState(false);
+
+            // Maybe recursive `writeObject` invocation which will change state.
+            marshal(obj);
+
+            // Restore state.
+            this.typeId = typeId0;
+            this.start = start0;
+            this.rawOffPos = rawOffPos0;
+            this.schemaId = schemaId0;
+            this.fieldCnt = fieldCnt0;
+            this.mapper = mapper0;
         }
     }
 
@@ -856,16 +867,29 @@ void writeBooleanField(@Nullable Boolean val) {
         if (obj == null)
             out.writeByte(GridBinaryMarshaller.NULL);
         else {
-            BinaryWriterExImpl writer = new BinaryWriterExImpl(
-                ctx,
-                out,
-                schema,
-                null,
-                failIfUnregistered,
-                GridBinaryMarshaller.UNREGISTERED_TYPE_ID
-            );
-
-            writer.marshal(obj);
+            // Store state.
+            int typeId0 = this.typeId;
+            int start0 = this.start;
+            int rawOffPos0 = this.rawOffPos;
+            int schemaId0 = this.schemaId;
+            int fieldCnt0 = this.fieldCnt;
+            BinaryInternalMapper mapper0 = this.mapper;
+            BinaryWriterHandles handles0 = this.handles;
+
+            // Handles cleared, because, in this mode they are NOT shared down to hierarchy.
+            clearState(true);
+
+            // Maybe recursive `writeObject` invocation which will change state.
+            marshal(obj);
+
+            // Restore state.
+            this.typeId = typeId0;
+            this.start = start0;
+            this.rawOffPos = rawOffPos0;
+            this.schemaId = schemaId0;
+            this.fieldCnt = fieldCnt0;
+            this.mapper = mapper0;
+            this.handles = handles0;
         }
     }
 
@@ -1549,4 +1573,17 @@ boolean tryWriteAsHandle(Object obj) {
     @Override public BinaryContext context() {
         return ctx;
     }
+
+    /** Clears writer state. */
+    private void clearState(boolean clearHandler) {
+        this.typeId = GridBinaryMarshaller.UNREGISTERED_TYPE_ID;
+        this.start = out.position();
+        this.rawOffPos = 0;
+        this.schemaId = BinaryUtils.schemaInitialId();
+        this.fieldCnt = 0;
+        this.mapper = null;
+
+        if (clearHandler)
+            this.handles = null;
+    }
 }