From: Jesper Krogh <jesper@krogh.cc>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: pgsql-performance@postgresql.org
Subject: Re: moving pg_xlog -- yeah, it's worth it!
Date: Tue, 09 Feb 2010 17:22:51 +0100
Message-ID: <4B718BDB.8080807@krogh.cc> (raw)
In-Reply-To: <4B71358E020000250002F0E4@gw.wicourts.gov>
References: <4B71358E020000250002F0E4@gw.wicourts.gov>
>
> 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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To: pgsql-performance@postgresql.org
Cc: jesper@krogh.cc, Kevin.Grittner@wicourts.gov
Subject: Re: moving pg_xlog -- yeah, it's worth it!
In-Reply-To: <4B718BDB.8080807@krogh.cc>
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