From: | Vivek Khera <khera(at)kcilink(dot)com> |
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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 |
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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.
Internet: khera(at)kciLink(dot)com Rockville, MD +1-301-869-4449 x806
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