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Date:      Fri, 19 Feb 1999 20:15:46 +0100
From:      Ollivier Robert <roberto@keltia.freenix.fr>
To:        freebsd-scsi@FreeBSD.ORG
Subject:   Re: slow disk performance
Message-ID:  <19990219201546.A18865@keltia.freenix.fr>
In-Reply-To: <18942.919418741@verdi.nethelp.no>; from sthaug@nethelp.no on Fri, Feb 19, 1999 at 11:05:41AM %2B0100
References:  <19990218215721.55546@right.PCS> <18942.919418741@verdi.nethelp.no>

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According to sthaug@nethelp.no:
> I get around 7.5 MB/s reading from the raw device on my DCAS-34330W, using
> an NCR875 based controller (Tekram). Somewhat less when writing.

I'm surprised. When I got my first DCAS-34330W, also on a NCR-875 card, I
got a bit more than 8 MB/s... I get 13 MB/s on the Viking II/AHA-7880UW on
my second machine.

DCAS-34330W (5400 rpm):
262144000 bytes transferred in 32.113711 secs (8162993 bytes/sec)

Viking II (7200 rpm):
262144000 bytes transferred in 19.191250 secs (13659558 bytes/sec)

-- 
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 3.0-CURRENT #69: Mon Jan 18 02:02:12 CET 1999



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