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	<title>Comments on: ASSM下DML的物理读高</title>
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	<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html</link>
	<description>Oracle DBA,MySQL DBA, 数据恢复, 数据迁移, 报表软件, 性能优化, 系统监控</description>
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		<item>
		<title>By: anysql</title>
		<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html/comment-page-1#comment-1765</link>
		<dc:creator>anysql</dc:creator>
		<pubDate>Tue, 05 Aug 2008 17:13:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.anysql.net/wordpress/uncategorized/assm%e4%b8%8bdml%e7%9a%84%e7%89%a9%e7%90%86%e8%af%bb%e9%ab%98.html#comment-1765</guid>
		<description>插入一行的成本
&lt;blockquote&gt;
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; db block gets&#160; &#160; &#160; &#160;  consistent gets&lt;br /&gt;
ASSM (No Index)&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  3&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  5&lt;br /&gt;
Free List (No Index)&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; 1&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  5&lt;br /&gt;
ASSM (1 Index)&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; 6&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  5&lt;br /&gt;
Free List (1 Index)&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  4&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;  5
&lt;/blockquote&gt;
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		<content:encoded><![CDATA[<p>插入一行的成本</p>
<blockquote><p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; db block gets&nbsp; &nbsp; &nbsp; &nbsp;  consistent gets<br />
ASSM (No Index)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  5<br />
Free List (No Index)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  5<br />
ASSM (1 Index)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 6&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  5<br />
Free List (1 Index)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  4&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  5
</p></blockquote>
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	<item>
		<title>By: anysql</title>
		<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html/comment-page-1#comment-1764</link>
		<dc:creator>anysql</dc:creator>
		<pubDate>Tue, 05 Aug 2008 02:07:51 +0000</pubDate>
		<guid isPermaLink="false">http://www.anysql.net/wordpress/uncategorized/assm%e4%b8%8bdml%e7%9a%84%e7%89%a9%e7%90%86%e8%af%bb%e9%ab%98.html#comment-1764</guid>
		<description>找一个并发插入几百万记录的工具。
要是以前的话，第一句话就说自已写一个，现在是写不动了。
</description>
		<content:encoded><![CDATA[<p>找一个并发插入几百万记录的工具。<br />
要是以前的话，第一句话就说自已写一个，现在是写不动了。</p>
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	</item>
	<item>
		<title>By: eygle</title>
		<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html/comment-page-1#comment-1763</link>
		<dc:creator>eygle</dc:creator>
		<pubDate>Tue, 05 Aug 2008 01:30:18 +0000</pubDate>
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		<description>应当测试多用户并发的情况!
</description>
		<content:encoded><![CDATA[<p>应当测试多用户并发的情况!</p>
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	<item>
		<title>By: anysql</title>
		<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html/comment-page-1#comment-1762</link>
		<dc:creator>anysql</dc:creator>
		<pubDate>Mon, 04 Aug 2008 19:26:02 +0000</pubDate>
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		<description>刚才试了一个40MB大小的小表，没有测出这种情况。
将记录插入进去后，根据时间范围去查询某个范围的记录中ROWID(文件号+块号)组合的个数. 结果是没有什么差异.
</description>
		<content:encoded><![CDATA[<p>刚才试了一个40MB大小的小表，没有测出这种情况。<br />
将记录插入进去后，根据时间范围去查询某个范围的记录中ROWID(文件号+块号)组合的个数. 结果是没有什么差异.</p>
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	</item>
	<item>
		<title>By: eygle</title>
		<link>http://www.anysql.net/oracle/high_phyread_assm_dml.html/comment-page-1#comment-1761</link>
		<dc:creator>eygle</dc:creator>
		<pubDate>Mon, 04 Aug 2008 19:12:57 +0000</pubDate>
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		<description>ASSM是可能有这样的问题
</description>
		<content:encoded><![CDATA[<p>ASSM是可能有这样的问题</p>
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