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> Before we get too involved in speculating, shouldn't we actually measure the
> performance of 7.1 on XFS and Reiserfs? Since it's easy to disable fsync,
> we can test whether that's the problem. I don't think that logging file
> systems must intrinsically give bad performance on fsync since they only log
> metadata changes.
>
> I don't have a machine with XFS installed and it will be at least a week
> before I could get around to a build. Any volunteers?
There have been multiple reports of poor PostgreSQL performance on
Reiser and xfs. I don't have numbers, though. Frankly, I think we need
xfs and reiser experts involved to figure out our options here.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026