Re: Recomended FS

Nick Burrett <nick@dsvr.net>

From: Nick Burrett <nick@dsvr.net>
To: Ben-Nes Michael <miki@canaan.co.il>
Cc: postgresql <pgsql-general@postgresql.org>
Date: 2003-10-20T12:54:00Z
Lists: pgsql-general
Ben-Nes Michael wrote:
> ----- Original Message ----- 
> From: "Nick Burrett" <nick@dsvr.net>
>>Ben-Nes Michael wrote:
>>
>>
>>>But still the greatest question is what FS to put on ?
>>>
>>>I heard Reiesref can handle small files very quickly.
>>
>>Switching from ext3 to reiserfs for our name servers reduced the time
>>taken to load 110,000 zones from 45 minutes to 5 minutes.
>>
>>However for a database, I don't think you can really factor this type of
>>stuff into the equation.  The performance benefits you get from
>>different filesystem types are going to be small compared to the
>>modifications that you can make to your database structure, queries and
>>applications.  The actual algorithms used in processing the data will be
>>much slower than the time taken to fetch the data off disk.
> 
> 
> So you say the FS has no real speed impact on the SB ?
> 
> In my pg data folder i have 2367 files, some big some small.

I'm saying: don't expect your DB performance to come on leaps and bounds 
just because you changed to a different filesystem format.  If you've 
got speed problems then it might help to look elsewhere first.

-- 
Nick Burrett
Network Engineer, Designer Servers Ltd.   http://www.dsvr.co.uk