Re: File Sytems Types and Os Recomendations

Bruce Momjian <pgman@candle.pha.pa.us> writes:

> scott.marlowe wrote:
> >
> > Someone on the list recently compared them, and linux came out marginally
> > faster than FreeBSD, but the difference was way less than what a faster
> > I/O subsystem, faster / more memory, or faster / more CPUs would make.
>
> That test was flawed because the user later reports that their IDE disks
> weren't using DMA on FreeBSD, while it was being used on Linux.  He
> promised to report back.

The results on the website were updated on August 28 to fix this flaw
and to incorporate some suggestions made on the pgsql-performance list
(see http://www.potentialtech.com/wmoran/postgresql.php).

I don't know why he didn't report back to the list.  He expressed the
desire that BSD benchmark faster than Linux, but the Linux numbers he
reports are still about 8-10% better than the FreeBSD numbers.  Both
BSD and Linux are undergoing rapid development so this is pretty close
to even.