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Re: moving pg_xlog -- yeah, it's worth it! - Mailing list pgsql-performance

From Jesper Krogh
Subject Re: moving pg_xlog -- yeah, it's worth it!
Date
Msg-id 4B718BDB.8080807@krogh.cc
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In response to moving pg_xlog -- yeah, it's worth it!  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
Responses Re: moving pg_xlog -- yeah, it's worth it!
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>
> Frankly, I was quite surprised by this, since some of the benchmarks
> people have published on the effects of using a separate RAID for
> the WAL files have only shown a one or two percent difference when
> using a hardware RAID controller with BBU cache configured for
> write-back.

Hi Kevin.

Nice report, but just a few questions.

Sorry if it is obvious.. but what filesystem/OS are you using and do you
 have BBU-writeback on the main data catalog also?

Jesper

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