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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /><title>PerformanceTest xref</title><link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" /></head><body><pre><a name="1" href="#1">1</a> <em class="comment">/*</em><a name="2" href="#2">2</a> <em class="comment"> * Copyright 1999-2004 The Apache Software Foundation.</em><a name="3" href="#3">3</a> <em class="comment"> * </em><a name="4" href="#4">4</a> <em class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em><a name="5" href="#5">5</a> <em class="comment"> * you may not use this file except in compliance with the License.</em><a name="6" href="#6">6</a> <em class="comment"> * You may obtain a copy of the License at</em><a name="7" href="#7">7</a> <em class="comment"> * </em><a name="8" href="#8">8</a> <em class="comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em><a name="9" href="#9">9</a> <em class="comment"> * </em><a name="10" href="#10">10</a> <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em><a name="11" href="#11">11</a> <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em><a name="12" href="#12">12</a> <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em><a name="13" href="#13">13</a> <em class="comment"> * See the License for the specific language governing permissions and</em><a name="14" href="#14">14</a> <em class="comment"> * limitations under the License.</em><a name="15" href="#15">15</a> <em class="comment"> */</em><a name="16" href="#16">16</a> <a name="17" href="#17">17</a> <strong>package</strong> <a href="../../../../../org/apache/commons/pool/performance/package-summary.html">org.apache.commons.pool.performance</a>;<a name="18" href="#18">18</a> <a name="19" href="#19">19</a> <strong>import</strong> org.apache.commons.pool.impl.GenericObjectPool;<a name="20" href="#20">20</a> <a name="21" href="#21">21</a> <em>/**<em>*</em></em><a name="22" href="#22">22</a> <em> * Multi-thread performance test</em><a name="23" href="#23">23</a> <em> * </em><a name="24" href="#24">24</a> <em> * @author Dirk Verbeeck</em><a name="25" href="#25">25</a> <em> * @version $Revision: 155430 $ $Date: 2005-02-26 08:13:28 -0500 (Sat, 26 Feb 2005) $ </em><a name="26" href="#26">26</a> <em> */</em><a name="27" href="#27">27</a> <strong>public</strong> <strong>class</strong> <a href="../../../../../org/apache/commons/pool/performance/PerformanceTest.html">PerformanceTest</a> {<a name="28" href="#28">28</a> <strong>private</strong> <strong>int</strong> logLevel = 0;<a name="29" href="#29">29</a> <strong>private</strong> <strong>int</strong> nrIterations = 5;<a name="30" href="#30">30</a> <strong>private</strong> <strong>int</strong> nrThreads = 100;<a name="31" href="#31">31</a> <a name="32" href="#32">32</a> <strong>private</strong> GenericObjectPool pool;<a name="33" href="#33">33</a> <strong>private</strong> <strong>boolean</strong> start = false;<a name="34" href="#34">34</a> <strong>private</strong> <strong>volatile</strong> <strong>int</strong> waiting = 0;<a name="35" href="#35">35</a> <strong>private</strong> <strong>volatile</strong> <strong>int</strong> complete = 0;<a name="36" href="#36">36</a> <strong>private</strong> <strong>volatile</strong> <strong>long</strong> totalBorrowTime = 0;<a name="37" href="#37">37</a> <strong>private</strong> <strong>volatile</strong> <strong>long</strong> totalReturnTime = 0;<a name="38" href="#38">38</a> <strong>private</strong> <strong>volatile</strong> <strong>int</strong> nrSamples = 0; <a name="39" href="#39">39</a> <a name="40" href="#40">40</a> <strong>public</strong> <strong>void</strong> setLogLevel(<strong>int</strong> i) {<a name="41" href="#41">41</a> logLevel = i;<a name="42" href="#42">42</a> }<a name="43" href="#43">43</a> <a name="44" href="#44">44</a> <strong>private</strong> <strong>void</strong> init() {<a name="45" href="#45">45</a> start = false;<a name="46" href="#46">46</a> waiting = 0;<a name="47" href="#47">47</a> complete = 0;<a name="48" href="#48">48</a> totalBorrowTime = 0;<a name="49" href="#49">49</a> totalReturnTime = 0;<a name="50" href="#50">50</a> nrSamples = 0; <a name="51" href="#51">51</a> }<a name="52" href="#52">52</a> <a name="53" href="#53">53</a> <strong>class</strong> MyThread implements Runnable {<a name="54" href="#54">54</a> <strong>long</strong> borrowTime;<a name="55" href="#55">55</a> <strong>long</strong> returnTime;<a name="56" href="#56">56</a> <a name="57" href="#57">57</a> <strong>public</strong> <strong>void</strong> runOnce() {<a name="58" href="#58">58</a> <strong>try</strong> {<a name="59" href="#59">59</a> waiting++;<a name="60" href="#60">60</a> <strong>if</strong> (logLevel >= 5) {<a name="61" href="#61">61</a> String name = <span class="string">"thread"</span> + Thread.currentThread().getName();<a name="62" href="#62">62</a> System.out.println(name + <span class="string">" waiting: "</span> + waiting + <span class="string">" complete: "</span> + complete);<a name="63" href="#63">63</a> }<a name="64" href="#64">64</a> <strong>long</strong> bbegin = System.currentTimeMillis();<a name="65" href="#65">65</a> Object o = pool.borrowObject();<a name="66" href="#66">66</a> <strong>long</strong> bend = System.currentTimeMillis();<a name="67" href="#67">67</a> waiting--;<a name="68" href="#68">68</a> <strong>do</strong> {<a name="69" href="#69">69</a> Thread.yield();<a name="70" href="#70">70</a> }<a name="71" href="#71">71</a> <strong>while</strong> (!start);<a name="72" href="#72">72</a> <a name="73" href="#73">73</a> <strong>if</strong> (logLevel >= 3) {<a name="74" href="#74">74</a> String name = <span class="string">"thread"</span> + Thread.currentThread().getName();<a name="75" href="#75">75</a> System.out.println(name + <span class="string">" waiting: "</span> + waiting + <span class="string">" complete: "</span> + complete);<a name="76" href="#76">76</a> }<a name="77" href="#77">77</a> <a name="78" href="#78">78</a> <strong>long</strong> rbegin = System.currentTimeMillis();<a name="79" href="#79">79</a> pool.returnObject(o);<a name="80" href="#80">80</a> <strong>long</strong> rend = System.currentTimeMillis();<a name="81" href="#81">81</a> Thread.yield();<a name="82" href="#82">82</a> complete++;<a name="83" href="#83">83</a> borrowTime = (bend-bbegin);<a name="84" href="#84">84</a> returnTime = (rend-rbegin);<a name="85" href="#85">85</a> } <strong>catch</strong> (Exception e) {<a name="86" href="#86">86</a> e.printStackTrace();<a name="87" href="#87">87</a> }<a name="88" href="#88">88</a> }<a name="89" href="#89">89</a> <a name="90" href="#90">90</a> <strong>public</strong> <strong>void</strong> run() {⌨️ 快捷键说明
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