Date: Mon, 25 Oct 2004 10:23:24 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: fandino <fandino@ng.fadesa.es> Cc: freebsd-current@freebsd.org Subject: Re: FreeBSD 5.3b7and poor ata performance Message-ID: <20041025172324.GF22681@funkthat.com> 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 this message on Mon, Oct 25, 2004 at 12:09 +0200:
> However I would like to know disk performance of list members using a
> VIA 82C686B chipset. Anyone in the list is using this chipset?
Yep, and I get decent performance:
dmesg clip:
atapci0: <VIA 82C686B UDMA100 controller> port 0xc000-0xc00f,0x376,0x170-0x177,0
x3f6,0x1f0-0x1f7 at device 7.1 on pci0
atapci0: Correcting VIA config for southbridge data corruption bug
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
ad0: 43979MB <IBM-DTLA-307045/TX6OA60A> [89355/16/63] at ata0-master UDMA100
diskinfo -t ad0:
Seek times:
Full stroke: 250 iter in 4.793884 sec = 19.176 msec
Half stroke: 250 iter in 3.560384 sec = 14.242 msec
Quarter stroke: 500 iter in 5.943262 sec = 11.887 msec
Short forward: 400 iter in 1.545138 sec = 3.863 msec
Short backward: 400 iter in 2.907429 sec = 7.269 msec
Seq outer: 2048 iter in 0.224701 sec = 0.110 msec
Seq inner: 2048 iter in 0.233413 sec = 0.114 msec
Transfer rates:
outside: 102400 kbytes in 2.857371 sec = 35837 kbytes/sec
middle: 102400 kbytes in 3.561157 sec = 28755 kbytes/sec
inside: 102400 kbytes in 5.635770 sec = 18170 kbytes/sec
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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