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	<title>Open Dream &#187; file</title>
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	<description>逍遥梦,梦逍遥</description>
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		<title>xen VBD 写速度测试</title>
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		<pubDate>Tue, 29 Sep 2009 10:14:58 +0000</pubDate>
		<dc:creator>pengyao</dc:creator>
				<category><![CDATA[Virtual]]></category>
		<category><![CDATA[file]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[VBD]]></category>
		<category><![CDATA[xen]]></category>

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		<description><![CDATA[使用lvm作为OS tap, 写速度相当宿主服务器的53.8%的性能，而file写速度仅相当于宿主服务器27.7%的性能，看来使用xen应优先使用物理分区或者lvm以获得相对良好的性能]]></description>
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