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28 lines
1.8 KiB
HTML
<!--$Id: logalloc.so,v 1.1 2000/06/02 23:32:48 bostic Exp $-->
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<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
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<!--All rights reserved.-->
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<html>
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<head>
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<title>Berkeley DB Reference Guide: Release 3.1: log file pre-allocation</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++">
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</head>
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<body bgcolor=white>
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<table><tr valign=top>
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<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></h3></td>
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<td width="1%"><a href="../../ref/upgrade.3.1/tmp.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.1/disk.html"><img src="../../images/next.gif" alt="Next"></a>
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</td></tr></table>
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<p>
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<h1 align=center>Release 3.1: log file pre-allocation</h1>
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<p>This change only affects Win/32 applications.
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<p>On Win/32 platforms Berkeley DB no longer pre-allocates log files. The problem
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was a noticeable performance spike as each log file was created. To turn
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this feature back on, search for the flag DB_OSO_LOG in the source file
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<b>log/log_put.c</b> and make the change described there, or contact
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Sleepycat Software for assistance.
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<table><tr><td><br></td><td width="1%"><a href="../../ref/upgrade.3.1/tmp.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.1/disk.html"><img src="../../images/next.gif" alt="Next"></a>
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</td></tr></table>
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<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
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</body>
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</html>
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