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
