Re: limiting performance impact of wal archiving.

From: Ivan Voras <ivoras(at)freebsd(dot)org>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: limiting performance impact of wal archiving.
Date: 2009-11-10 14:05:36
Message-ID: hdbrv8$p35$1@ger.gmane.org
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Laurent Laborde wrote:
> Hi !
> We recently had a problem with wal archiving badly impacting the
> performance of our postgresql master.

Hmmm, do you want to say that copying 16 MB files over the network (and
presumably you are not doing it absolutely continually - there are
pauses between log shipping - or you wouldn't be able to use bandwidth
limiting) in an age when desktop drives easily read 60 MB/s (and besides
most of the file should be cached by the OS anyway) is a problem for
you? Slow hardware?

(or I've misunderstood the problem...)

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