Benchmark for HttpRequestDecoder

microbench/src/test/java/io/netty/microbench/http/HttpRequestDecoderBenchmark.java

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+/*
+ * Copyright 2014 The Netty Project
+ *
+ * The Netty Project 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 io.netty.microbench.http;
+
+import io.netty.buffer.Unpooled;
+import io.netty.channel.embedded.EmbeddedChannel;
+import io.netty.handler.codec.http.HttpRequestDecoder;
+import io.netty.microbench.util.AbstractMicrobenchmark;
+import io.netty.util.CharsetUtil;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+/**
+ * This benchmark is based on HttpRequestDecoderTest class.
+ */
+@State(Scope.Benchmark)
+@Warmup(iterations = 10)
+@Measurement(iterations = 20)
+public class HttpRequestDecoderBenchmark extends AbstractMicrobenchmark {
+
+    private static final byte[] CONTENT_MIXED_DELIMITERS = createContent("\r\n", "\n");
+    private static final int CONTENT_LENGTH = 120;
+
+    @Param({ "2", "4", "8", "16", "32" })
+    public int step;
+
+    private static byte[] createContent(String... lineDelimiters) {
+        String lineDelimiter;
+        String lineDelimiter2;
+        if (lineDelimiters.length == 2) {
+            lineDelimiter = lineDelimiters[0];
+            lineDelimiter2 = lineDelimiters[1];
+        } else {
+            lineDelimiter = lineDelimiters[0];
+            lineDelimiter2 = lineDelimiters[0];
+        }
+        // This GET request is incorrect but it does not matter for HttpRequestDecoder.
+        // It used only to get a long request.
+        return ("GET /some/path?foo=bar&wibble=eek HTTP/1.1" + "\r\n" +
+                "Upgrade: WebSocket" + lineDelimiter2 +
+                "Connection: Upgrade" + lineDelimiter +
+                "Host: localhost" + lineDelimiter2 +
+                "Referer: http://www.site.ru/index.html" + lineDelimiter +
+                "User-Agent: Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.9b5) Gecko/2008050509 Firefox/3.0b5" +
+                lineDelimiter2 +
+                "Accept: text/html" + lineDelimiter +
+                "Cookie: income=1" + lineDelimiter2 +
+                "Origin: http://localhost:8080" + lineDelimiter +
+                "Sec-WebSocket-Key1: 10  28 8V7 8 48     0" + lineDelimiter2 +
+                "Sec-WebSocket-Key2: 8 Xt754O3Q3QW 0   _60" + lineDelimiter +
+                "Content-Type: application/x-www-form-urlencoded" + lineDelimiter2 +
+                "Content-Length: " + CONTENT_LENGTH + lineDelimiter +
+                "\r\n"  +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n" +
+                "1234567890\r\n"
+        ).getBytes(CharsetUtil.US_ASCII);
+    }
+
+    @Benchmark
+    public void testDecodeWholeRequestInMultipleStepsMixedDelimiters() {
+        testDecodeWholeRequestInMultipleSteps(CONTENT_MIXED_DELIMITERS, step);
+    }
+
+    private static void testDecodeWholeRequestInMultipleSteps(byte[] content, int fragmentSize) {
+        final EmbeddedChannel channel = new EmbeddedChannel(new HttpRequestDecoder());
+
+        final int headerLength = content.length - CONTENT_LENGTH;
+
+        // split up the header
+        for (int a = 0; a < headerLength;) {
+            int amount = fragmentSize;
+            if (a + amount > headerLength) {
+                amount = headerLength -  a;
+            }
+
+            // if header is done it should produce a HttpRequest
+            channel.writeInbound(Unpooled.wrappedBuffer(content, a, amount));
+            a += amount;
+        }
+
+        for (int i = CONTENT_LENGTH; i > 0; i --) {
+            // Should produce HttpContent
+            channel.writeInbound(Unpooled.wrappedBuffer(content, content.length - i, 1));
+        }
+    }
+}