Date: Mon, 25 Oct 2004 12:35:09 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@DeepCore.dk> To: fandino@ng.fadesa.es Cc: freebsd-current@freebsd.org Subject: Re: FreeBSD 5.3b7and poor ata performance Message-ID: <417CD6DD.7050801@DeepCore.dk> In-Reply-To: <417CD0CA.8010708@ng.fadesa.es> References: <14479.1098695558@critter.freebsd.dk> <417CD0CA.8010708@ng.fadesa.es>
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fandino wrote:
> However I would like to know disk performance of list members using a
> VIA 82C686B chipset. Anyone in the list is using this chipset?
I do:
atapci0: <VIA 82C686B UDMA100 controller> port 0xd000-0xd00f at device=20
7.1 on pci0
=2E..
ad0: 39205MB <Maxtor 6E040L0> [79656/16/63] at ata0-master UDMA100
Diskinfo -t yields:
Seek times:
Full stroke: 250 iter in 5.378885 sec =3D 21.516 msec
Half stroke: 250 iter in 4.154826 sec =3D 16.619 msec
Quarter stroke: 500 iter in 6.640011 sec =3D 13.280 msec
Short forward: 400 iter in 2.911354 sec =3D 7.278 msec
Short backward: 400 iter in 2.370054 sec =3D 5.925 msec
Seq outer: 2048 iter in 0.267370 sec =3D 0.131 msec
Seq inner: 2048 iter in 0.266306 sec =3D 0.130 msec
Transfer rates:
outside: 102400 kbytes in 1.933641 sec =3D 52957=20
kbytes/sec
middle: 102400 kbytes in 1.934147 sec =3D 52943=20
kbytes/sec
inside: 102400 kbytes in 2.761984 sec =3D 37075=20
kbytes/sec
Mind you this server is active as mail/www/gateway so the numbers are to =
be taken with a bit of salt, and that Maxtor disk is probably the=20
slowest disk they make at all these days, anyhow the numbers above fits=20
the specs pretty close...
--=20
-S=F8ren
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