PCMCIA/IDE transfer rates

Wolfgang Denk wd at denx.de
Thu Aug 16 06:01:51 EST 2001


In message <3B7AD164.790DD47A at mvista.com> you wrote:
> Wolfgang Denk wrote:
>
> > Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
> >               -------Sequential Output-------- ---Sequential Input-- --Random--
> >               -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> > Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
> > MPC823E   250   534 90.4  3028 68.6  1533 64.4   542 97.6  3316 94.5  45.2  4.5
> >
> > Note that this is a normal 2.5" disk drive usually used in laptops  -
> > quite  slow.
>
> Well, actually quite respectable for PIO.  I'm not sure my G4 runs
> much faster in PIO mode :-).

Well, it's a 823-E (big caches) running at 66 MHz (both CPU  and  bus
clock). I have slower systems (like MPC850), too :-(

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
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