Date: Tue, 29 Jul 1997 21:49:29 +0200 (MEST) From: Søren Schmidt <sos@sos.freebsd.dk> To: se@FreeBSD.ORG (Stefan Esser) Cc: freebsd-current@FreeBSD.ORG Subject: Re: code talks: announcing EIDE bus master patches Message-ID: <199707291949.VAA00271@sos.freebsd.dk> In-Reply-To: <19970729210723.18104@mi.uni-koeln.de> from Stefan Esser at "Jul 29, 97 09:07:23 pm"
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In reply to Stefan Esser who wrote:
> On Jul 29, Søren Schmidt <sos@sos.freebsd.dk> wrote:
> > Well, doing a little surgery to it and sticking it into current,
> > (the PCI subsystem has changed a little from 2.2.x to current)
> > I'd say it works pretty well here too (440FX chipset Maxtor drives).
>
> Are these Maxtor DiamondMax drives ?
Yep these are Maxtor DiamondMax 84000A6 drives (4G)
> I'd love to see Bonnie results for them
> with the bus-master EIDE driver ...
>
> You don't have, by chance, any numbers
> to share ? :)
Sure, on my dev machine (P6@233Mhz-Natoma/64MB/2*Maxtor 84000A6)
First without busmatering DMA:
-------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
100 4871 35.9 4738 9.4 1722 3.6 4488 37.2 6973 8.5 126.7 2.2
Then with busmastering DMA:
-------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
100 5225 39.8 5278 11.1 2017 4.4 7315 60.2 8737 10.8 149.6 2.2
Not bad, for a "simple" software upgrade :)
It has improved my worldstone by ~10% if that counts for real world use..
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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