Re: XFS filessystem for Datawarehousing

On Wed, Aug 02, 2006 at 02:26:39PM -0700, Steve Poe wrote:
>For the past  year, I have been running odbc-bench on a dual-opteron with
>4GB of RAM using a 8GB sample data. I found the performance difference
>between EXT3, JFS, and XFS  is +/- 5-8%.

That's not surprising when your db is only 2x your RAM. You'll find that
filesystem performance is much more important when your database is 10x+
your RAM (which is often the case once your database heads toward a TB).

>Testing newer kernels and read-ahead patches may benefit you as well.

I've been really impressed by the adaptive readahead patches with
postgres.

Mike Stone