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Re: Configuring PostgreSQL to minimize impact of

From: Vivek Khera <khera(at)kcilink(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Configuring PostgreSQL to minimize impact of
Date: 2004-05-12 19:05:05
Message-ID: x7fza5lb4u.fsf@yertle.int.kciLink.com (view raw or flat)
Thread:
Lists: pgsql-performance
>>>>> "JAR" == J Andrew Rogers <jrogers(at)neopolitan(dot)com> writes:


JAR> The LSI MegaRAID reading/writing/caching behavior is user configurable.
JAR> It will support both write-back and write-through, and IIRC, three
JAR> different algorithms for reading (none, read-ahead, adaptive).  Plenty
JAR> of configuration options.

For PG max performance, you want to set it for write-back and
read-ahead (adaptive has been claimed to be bad, but I got similar
performace from read-ahead and adaptive, so YMMV).


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Vivek Khera, Ph.D.                Khera Communications, Inc.
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