| /* |
| * 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.cassandra.test.microbench; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.channel.embedded.EmbeddedChannel; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Fork; |
| import org.openjdk.jmh.annotations.Measurement; |
| import org.openjdk.jmh.annotations.Mode; |
| import org.openjdk.jmh.annotations.OutputTimeUnit; |
| import org.openjdk.jmh.annotations.Param; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.Setup; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.Warmup; |
| |
| @State(Scope.Thread) |
| @Warmup(iterations = 4, time = 1, timeUnit = TimeUnit.SECONDS) |
| @Measurement(iterations = 8, time = 4, timeUnit = TimeUnit.SECONDS) |
| @Fork(value = 1, jvmArgsAppend = "-Xmx512M") |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| @BenchmarkMode(Mode.SampleTime) |
| public class PreaggregatedByteBufsBench |
| { |
| @Param({ "1000", "2500", "5000", "10000", "20000", "40000"}) |
| private int len; |
| |
| private static final int subBufferCount = 64; |
| |
| private EmbeddedChannel channel; |
| |
| @Setup |
| public void setUp() |
| { |
| channel = new EmbeddedChannel(); |
| } |
| |
| @Benchmark |
| public boolean oneBigBuf() |
| { |
| boolean success = true; |
| try |
| { |
| ByteBuf buf = channel.alloc().directBuffer(len); |
| buf.writerIndex(len); |
| channel.writeAndFlush(buf); |
| } |
| catch (Exception e) |
| { |
| success = false; |
| } |
| finally |
| { |
| channel.releaseOutbound(); |
| } |
| |
| return success; |
| } |
| |
| @Benchmark |
| public boolean chunkedBuf() |
| { |
| boolean success = true; |
| try |
| { |
| int chunkLen = len / subBufferCount; |
| |
| for (int i = 0; i < subBufferCount; i++) |
| { |
| ByteBuf buf = channel.alloc().directBuffer(chunkLen); |
| buf.writerIndex(chunkLen); |
| channel.write(buf); |
| } |
| channel.flush(); |
| } |
| catch (Exception e) |
| { |
| success = false; |
| } |
| finally |
| { |
| channel.releaseOutbound(); |
| } |
| |
| return success; |
| } |
| } |