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From:john.russell Date:April 8 2011 7:37pm
Subject:svn commit - mysqldoc@oter02: r25814 - trunk/refman-5.6
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Author: jdrussel
Date: 2011-04-08 21:37:09 +0200 (Fri, 08 Apr 2011)
New Revision: 25814

Log:
Fill in some details for the InnoDB table cache enhancement.


Modified:
   trunk/refman-5.6/innodb-performance.xml


Modified: trunk/refman-5.6/innodb-performance.xml
===================================================================
--- trunk/refman-5.6/innodb-performance.xml	2011-04-08 19:30:49 UTC (rev 25813)
+++ trunk/refman-5.6/innodb-performance.xml	2011-04-08 19:37:09 UTC (rev 25814)
Changed blocks: 1, Lines Added: 13, Lines Deleted: 2; 1215 bytes

@@ -1963,9 +1963,20 @@
 
   <section id="innodb-performance-table-cache">
 
-    <title>InnoDB Configurable Data Dictionary cache</title>
+    <title>InnoDB Configurable Data Dictionary Cache</title>
 
-    <para></para>
+    <para>
+      To ease the memory load on systems with huge numbers of tables,
+      InnoDB now frees up the memory associated with an opened table,
+      using an LRU algorithm to select tables that have gone the longest
+      without being accessed. To reserve more memory to hold metadata
+      for open InnoDB tables, increase the value of the
+      <literal role="sysvar">table_cache</literal> configuration option.
+      InnoDB treats this value as a <quote>soft limit</quote>. The
+      actual number of tables with cached metadata could be higher,
+      because metadata for InnoDB system tables, and parent and child
+      tables in foreign key relationships, is never evicted from memory.
+    </para>
 
   </section>
 


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svn commit - mysqldoc@oter02: r25814 - trunk/refman-5.6john.russell8 Apr