From: | Johan Segernäs <johan(dot)segernas(at)foretagsuniversitetet(dot)se> |
---|---|
To: | "'Karel Zak'" <zakkr(at)zf(dot)jcu(dot)cz> |
Cc: | "'pgsql-admin(at)postgresql(dot)org'" <pgsql-admin(at)postgresql(dot)org> |
Subject: | RE: Performance |
Date: | 2001-02-05 11:21:56 |
Message-ID: | 1AA3DCC66D03D740BE070FB8CB48D9A6D2AD@funsql.fun |
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Lists: | pgsql-admin |
> On Mon, 5 Feb 2001, [iso-8859-1] Johan Segernäs wrote:
> > And running postgresql on a P133 with 64 meggs of RAM using
> debian woody.
> > How many users will that box be able to serve?
> >
> > I'm running apache/php on another machine and the database
> will have
> > questions and answers for some exams in it. Nothing hard, just text.
>
> Depends on:
>
> - RAM
64 MB EDO
> - I/O operations (do you run UPDATE, INSERT very often?)
No, very seldom. It'll be for serving questions and check for the right
answer to the question.
We'll only do INSERT/UPDATE when adding users, adding new questions and so
on.
> - fsync() setting (-F or 7.1)
?
> - size of DB
> - size of data transfered between client-server
> - number of used tables in typical query
As I said, it's gonna be for an exam-system with around 150 questions around
100 chars long.
With answers for each and every one.
No big amount of data.
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