Again - the performance difference increases as the disk speed increases. Our experience is that we went from 300MB/s to 475MB/s when moving from ext3 to xfs. - Luke On 8/2/06 4:33 PM, "Michael Stone" <mstone+postgres@xxxxxxxxx> wrote: > 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 > > ---------------------------(end of broadcast)--------------------------- > TIP 6: explain analyze is your friend >
