Re: performance difference: multiple db vs single db

Instead of having to deal with issues of splitting data across multiple
servers and all the associated pain, why not take a look at the Linux
Virtual Server project, http://www.linuxvirtualserver.org/

I don't know for sure that Postgres will run on it, but the beauty if it
did is that you can keep adding more servers as you need more horsepower
(maybe?).

John Sidney-Woollett

John Liu said:
>
> Here're two cases -
> 1. 20 tables in one huge database A on one machine
> 2. 10 tables in each database if they can functionally separated, so two
> databases A1 and A2 on one machine
>
> What's the estimated performance difference on queries from A2 and A1
> comparing the same querying from A in general using PostgreSQL?
> 1) What if A1 contains 10 bigger tables [80% of A], A2 container 10 tables
> with less data [20% of A]
> 2) And A1 and A2 contains 50% of A each
>
>
> Thanks.
>
> johnl
>
>
>
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