From: | "Gavin M(dot) Roy" <gmr(at)ehpg(dot)net> |
---|---|
To: | Michael Riess <mlriess(at)gmx(dot)de> |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: 15,000 tables |
Date: | 2005-12-01 18:07:44 |
Message-ID: | 9A858930-1CA6-4238-92D4-D1E945683653@ehpg.net |
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Thread: | |
Lists: | pgsql-es-ayuda pgsql-performance |
Hi Michael,
I'm a fan of ReiserFS, and I can be wrong, but I believe using a
journaling filesystem for the PgSQL database could be slowing things
down.
Gavin
On Dec 1, 2005, at 6:51 AM, Michael Riess wrote:
> Hi David,
>
>> with 15,000 tables you are talking about a LOT of files to hold
>> these (30,000 files with one index each and each database being
>> small enough to not need more then one file to hold it), on linux
>> ext2/3 this many files in one directory will slow you down horribly.
>
> We use ReiserFS, and I don't think that this is causing the
> problem ... although it would probably help to split the directory
> up using tablespaces.
>
> But thanks for the suggestion!
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings
Gavin M. Roy
800 Pound Gorilla
gmr(at)ehpg(dot)net
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