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	<title>惊群 - 四号程序员</title>
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		<title>(转)测试Lighttpd accept的惊群现象</title>
		<link>https://www.coder4.com/archives/148</link>
					<comments>https://www.coder4.com/archives/148#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Wed, 02 Dec 2009 16:30:59 +0000</pubDate>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[epoll]]></category>
		<category><![CDATA[Lighttpd]]></category>
		<category><![CDATA[惊群]]></category>
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					<description><![CDATA[关于“惊群现象”：在阻塞模型中，各进程分别通过accept阻塞，等待连接到达，当一个连接到达时，所有的进程都会被唤醒，但只有其中一个进程可以成功accept该连接，其余的则继续投入睡眠，这就是所谓的惊群现象，转载的这篇文章很好的对Lighttpd进行了测试，并分析了惊群现象。模拟实现了epoll+prefox()模型。]]></description>
		
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