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< * Consider use of open/fcntl(O_DIRECT) to minimize OS caching, < especially for WAL writes > * -Consider use of open/fcntl(O_DIRECT) to minimize OS caching, > for WAL writes
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doc/TODO

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PostgreSQL TODO List
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====================
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Last updated: Mon Jul 25 11:26:58 EDT 2005
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The most recent version of this document can be viewed at
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http://www.postgresql.org/docs/faqs.TODO.html.
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backends that also have the file open, and the feature is not supported
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on all operating systems.
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* Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
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especially for WAL writes
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* -Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
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for WAL writes
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O_DIRECT doesn't have the same media write guarantees as fsync, so it
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is in addition to the fsync method, not in place of it.

doc/src/FAQ/TODO.html

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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
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<h1><a name="section_1">PostgreSQL TODO List</a></h1>
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<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
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</p>
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<p>The most recent version of this document can be viewed at<br/>
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<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
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backends that also have the file open, and the feature is not supported
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on all operating systems.
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</p>
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</li><li>Consider use of open/fcntl(O_DIRECT) to minimize OS caching,
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especially for WAL writes
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</li><li>-<em>Consider use of open/fcntl(O_DIRECT) to minimize OS caching,</em>
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for WAL writes
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<p> O_DIRECT doesn't have the same media write guarantees as fsync, so it
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is in addition to the fsync method, not in place of it.
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</p>

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