| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Source code</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="description" content="source: package: org.apache.hadoop.hbase.codec, class: CodecPerformance"> |
| <meta name="generator" content="javadoc/SourceToHTMLConverter"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body class="source-page"> |
| <main role="main"> |
| <div class="source-container"> |
| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.codec;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertArrayEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertTrue;</span> |
| <span class="source-line-no">022</span><span id="line-22"></span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.ByteArrayInputStream;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.ByteArrayOutputStream;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.IOException;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.ExtendedCellScanner;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.io.CellOutputStream;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.slf4j.Logger;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37">/**</span> |
| <span class="source-line-no">038</span><span id="line-38"> * Do basic codec performance eval.</span> |
| <span class="source-line-no">039</span><span id="line-39"> */</span> |
| <span class="source-line-no">040</span><span id="line-40">@InterfaceAudience.Public</span> |
| <span class="source-line-no">041</span><span id="line-41">public class CodecPerformance {</span> |
| <span class="source-line-no">042</span><span id="line-42"> /** @deprecated LOG variable would be made private. since 1.2, remove in 3.0 */</span> |
| <span class="source-line-no">043</span><span id="line-43"> @Deprecated</span> |
| <span class="source-line-no">044</span><span id="line-44"> public static final Logger LOG = LoggerFactory.getLogger(CodecPerformance.class);</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> static ExtendedCell[] getCells(final int howMany) {</span> |
| <span class="source-line-no">047</span><span id="line-47"> ExtendedCell[] cells = new ExtendedCell[howMany];</span> |
| <span class="source-line-no">048</span><span id="line-48"> for (int i = 0; i < howMany; i++) {</span> |
| <span class="source-line-no">049</span><span id="line-49"> byte[] index = Bytes.toBytes(i);</span> |
| <span class="source-line-no">050</span><span id="line-50"> KeyValue kv = new KeyValue(index, Bytes.toBytes("f"), index, index);</span> |
| <span class="source-line-no">051</span><span id="line-51"> cells[i] = kv;</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"> return cells;</span> |
| <span class="source-line-no">054</span><span id="line-54"> }</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> static int getRoughSize(final Cell[] cells) {</span> |
| <span class="source-line-no">057</span><span id="line-57"> int size = 0;</span> |
| <span class="source-line-no">058</span><span id="line-58"> for (Cell c : cells) {</span> |
| <span class="source-line-no">059</span><span id="line-59"> size += c.getRowLength() + c.getFamilyLength() + c.getQualifierLength() + c.getValueLength();</span> |
| <span class="source-line-no">060</span><span id="line-60"> size += Bytes.SIZEOF_LONG + Bytes.SIZEOF_BYTE;</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"> return size;</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> static byte[] runEncoderTest(final int index, final int initialBufferSize,</span> |
| <span class="source-line-no">066</span><span id="line-66"> final ByteArrayOutputStream baos, final CellOutputStream encoder, final ExtendedCell[] cells)</span> |
| <span class="source-line-no">067</span><span id="line-67"> throws IOException {</span> |
| <span class="source-line-no">068</span><span id="line-68"> long startTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">069</span><span id="line-69"> for (int i = 0; i < cells.length; i++) {</span> |
| <span class="source-line-no">070</span><span id="line-70"> encoder.write(cells[i]);</span> |
| <span class="source-line-no">071</span><span id="line-71"> }</span> |
| <span class="source-line-no">072</span><span id="line-72"> encoder.flush();</span> |
| <span class="source-line-no">073</span><span id="line-73"> LOG.info("" + index + " encoded count=" + cells.length + " in "</span> |
| <span class="source-line-no">074</span><span id="line-74"> + (EnvironmentEdgeManager.currentTime() - startTime) + "ms for encoder " + encoder);</span> |
| <span class="source-line-no">075</span><span id="line-75"> // Ensure we did not have to grow the backing buffer.</span> |
| <span class="source-line-no">076</span><span id="line-76"> assertTrue(baos.size() < initialBufferSize);</span> |
| <span class="source-line-no">077</span><span id="line-77"> return baos.toByteArray();</span> |
| <span class="source-line-no">078</span><span id="line-78"> }</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> static ExtendedCell[] runDecoderTest(final int index, final int count,</span> |
| <span class="source-line-no">081</span><span id="line-81"> final ExtendedCellScanner decoder) throws IOException {</span> |
| <span class="source-line-no">082</span><span id="line-82"> ExtendedCell[] cells = new ExtendedCell[count];</span> |
| <span class="source-line-no">083</span><span id="line-83"> long startTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">084</span><span id="line-84"> for (int i = 0; decoder.advance(); i++) {</span> |
| <span class="source-line-no">085</span><span id="line-85"> cells[i] = decoder.current();</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"> LOG.info("" + index + " decoded count=" + cells.length + " in "</span> |
| <span class="source-line-no">088</span><span id="line-88"> + (EnvironmentEdgeManager.currentTime() - startTime) + "ms for decoder " + decoder);</span> |
| <span class="source-line-no">089</span><span id="line-89"> // Ensure we did not have to grow the backing buffer.</span> |
| <span class="source-line-no">090</span><span id="line-90"> assertTrue(cells.length == count);</span> |
| <span class="source-line-no">091</span><span id="line-91"> return cells;</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> static void verifyCells(final Cell[] input, final Cell[] output) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> assertArrayEquals(input, output);</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> static void doCodec(final Codec codec, final ExtendedCell[] cells, final int cycles,</span> |
| <span class="source-line-no">099</span><span id="line-99"> final int count, final int initialBufferSize) throws IOException {</span> |
| <span class="source-line-no">100</span><span id="line-100"> byte[] bytes = null;</span> |
| <span class="source-line-no">101</span><span id="line-101"> ExtendedCell[] cellsDecoded = null;</span> |
| <span class="source-line-no">102</span><span id="line-102"> for (int i = 0; i < cycles; i++) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> ByteArrayOutputStream baos = new ByteArrayOutputStream(initialBufferSize);</span> |
| <span class="source-line-no">104</span><span id="line-104"> Codec.Encoder encoder = codec.getEncoder(baos);</span> |
| <span class="source-line-no">105</span><span id="line-105"> bytes = runEncoderTest(i, initialBufferSize, baos, encoder, cells);</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> for (int i = 0; i < cycles; i++) {</span> |
| <span class="source-line-no">108</span><span id="line-108"> ByteArrayInputStream bais = new ByteArrayInputStream(bytes);</span> |
| <span class="source-line-no">109</span><span id="line-109"> Codec.Decoder decoder = codec.getDecoder(bais);</span> |
| <span class="source-line-no">110</span><span id="line-110"> cellsDecoded = CodecPerformance.runDecoderTest(i, count, decoder);</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"> verifyCells(cells, cellsDecoded);</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"></span> |
| <span class="source-line-no">115</span><span id="line-115"> public static void main(String[] args) throws IOException {</span> |
| <span class="source-line-no">116</span><span id="line-116"> // How many Cells to encode/decode on each cycle.</span> |
| <span class="source-line-no">117</span><span id="line-117"> final int count = 100000;</span> |
| <span class="source-line-no">118</span><span id="line-118"> // How many times to do an operation; repeat gives hotspot chance to warm up.</span> |
| <span class="source-line-no">119</span><span id="line-119"> final int cycles = 30;</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> ExtendedCell[] cells = getCells(count);</span> |
| <span class="source-line-no">122</span><span id="line-122"> int size = getRoughSize(cells);</span> |
| <span class="source-line-no">123</span><span id="line-123"> int initialBufferSize = 2 * size; // Multiply by 2 to ensure we don't have to grow buffer</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> // Test KeyValue codec.</span> |
| <span class="source-line-no">126</span><span id="line-126"> doCodec(new KeyValueCodec(), cells, cycles, count, initialBufferSize);</span> |
| <span class="source-line-no">127</span><span id="line-127"> doCodec(new CellCodec(), cells, cycles, count, initialBufferSize);</span> |
| <span class="source-line-no">128</span><span id="line-128"> doCodec(new MessageCodec(), cells, cycles, count, initialBufferSize);</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130">}</span> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
