d9a6cf341c
Motivation: ByteBuf supports “marker indexes”. The intended use case for these is if a speculative operation (e.g. decode) is in process the user can “mark” and interface and refer to it later if the operation isn’t successful (e.g. not enough data). However this is rarely used in practice, requires extra memory to maintain, and introduces complexity in the state management for derived/pooled buffer initialization, resizing, and other operations which may modify reader/writer indexes. Modifications: Remove support for marking and adjust testcases / code. Result: Fixes https://github.com/netty/netty/issues/8535.
186 lines
5.3 KiB
Java
186 lines
5.3 KiB
Java
/*
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* Copyright 2014 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.microbench.buffer;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufUtil;
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import io.netty.buffer.Unpooled;
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import io.netty.microbench.util.AbstractMicrobenchmark;
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import io.netty.util.CharsetUtil;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.Measurement;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.TearDown;
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import org.openjdk.jmh.annotations.Warmup;
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@State(Scope.Benchmark)
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@Warmup(iterations = 5)
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@Measurement(iterations = 10)
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public class
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ByteBufUtilBenchmark extends AbstractMicrobenchmark {
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private ByteBuf buffer;
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private ByteBuf wrapped;
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private ByteBuf asciiBuffer;
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private ByteBuf utf8Buffer;
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private StringBuilder asciiSequence;
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private String ascii;
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private StringBuilder utf8Sequence;
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private String utf8;
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@Setup
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public void setup() {
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// Use buffer sizes that will also allow to write UTF-8 without grow the buffer
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buffer = Unpooled.directBuffer(512);
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wrapped = Unpooled.unreleasableBuffer(Unpooled.directBuffer(512));
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asciiSequence = new StringBuilder(128);
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for (int i = 0; i < 128; i++) {
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asciiSequence.append('a');
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}
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ascii = asciiSequence.toString();
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// Generate some mixed UTF-8 String for benchmark
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utf8Sequence = new StringBuilder(128);
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char[] chars = "Some UTF-8 like äÄ∏ŒŒ".toCharArray();
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for (int i = 0; i < 128; i++) {
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utf8Sequence.append(chars[i % chars.length]);
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}
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utf8 = utf8Sequence.toString();
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asciiSequence = utf8Sequence;
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asciiBuffer = Unpooled.copiedBuffer(ascii, CharsetUtil.US_ASCII);
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utf8Buffer = Unpooled.copiedBuffer(utf8, CharsetUtil.UTF_8);
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}
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@TearDown
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public void tearDown() {
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buffer.release();
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wrapped.release();
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asciiBuffer.release();
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utf8Buffer.release();
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}
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@Benchmark
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public void writeAsciiStringViaArray() {
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buffer.writerIndex(0);
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buffer.writeBytes(ascii.getBytes(CharsetUtil.US_ASCII));
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}
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@Benchmark
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public void writeAsciiStringViaArrayWrapped() {
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wrapped.writerIndex(0);
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wrapped.writeBytes(ascii.getBytes(CharsetUtil.US_ASCII));
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}
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@Benchmark
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public void writeAsciiString() {
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buffer.writerIndex(0);
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ByteBufUtil.writeAscii(buffer, ascii);
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}
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@Benchmark
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public void writeAsciiStringWrapped() {
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wrapped.writerIndex(0);
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ByteBufUtil.writeAscii(wrapped, ascii);
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}
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@Benchmark
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public void writeAsciiViaArray() {
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buffer.writerIndex(0);
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buffer.writeBytes(asciiSequence.toString().getBytes(CharsetUtil.US_ASCII));
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}
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@Benchmark
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public void writeAsciiViaArrayWrapped() {
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wrapped.writerIndex(0);
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wrapped.writeBytes(asciiSequence.toString().getBytes(CharsetUtil.US_ASCII));
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}
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@Benchmark
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public void writeAscii() {
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buffer.writerIndex(0);
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ByteBufUtil.writeAscii(buffer, asciiSequence);
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}
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@Benchmark
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public void writeAsciiWrapped() {
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wrapped.writerIndex(0);
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ByteBufUtil.writeAscii(wrapped, asciiSequence);
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}
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@Benchmark
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public void writeUtf8StringViaArray() {
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buffer.writerIndex(0);
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buffer.writeBytes(utf8.getBytes(CharsetUtil.UTF_8));
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}
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@Benchmark
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public void writeUtf8StringViaArrayWrapped() {
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wrapped.writerIndex(0);
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wrapped.writeBytes(utf8.getBytes(CharsetUtil.UTF_8));
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}
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@Benchmark
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public void writeUtf8String() {
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buffer.writerIndex(0);
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ByteBufUtil.writeUtf8(buffer, utf8);
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}
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@Benchmark
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public void writeUtf8StringWrapped() {
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wrapped.writerIndex(0);
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ByteBufUtil.writeUtf8(wrapped, utf8);
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}
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@Benchmark
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public void writeUtf8ViaArray() {
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buffer.writerIndex(0);
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buffer.writeBytes(utf8Sequence.toString().getBytes(CharsetUtil.UTF_8));
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}
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@Benchmark
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public void writeUtf8ViaArrayWrapped() {
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wrapped.writerIndex(0);
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wrapped.writeBytes(utf8Sequence.toString().getBytes(CharsetUtil.UTF_8));
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}
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@Benchmark
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public void writeUtf8() {
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buffer.writerIndex(0);
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ByteBufUtil.writeUtf8(buffer, utf8Sequence);
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}
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@Benchmark
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public void writeUtf8Wrapped() {
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wrapped.writerIndex(0);
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ByteBufUtil.writeUtf8(wrapped, utf8Sequence);
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}
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@Benchmark
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public String decodeStringAscii() {
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return asciiBuffer.toString(CharsetUtil.US_ASCII);
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}
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@Benchmark
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public String decodeStringUtf8() {
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return utf8Buffer.toString(CharsetUtil.UTF_8);
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}
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}
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