Re: FreeBSD 5.3b7and poor ata performance

From: John-Mark Gurney <gurney_j_at_resnet.uoregon.edu>
Date: Mon, 25 Oct 2004 10:23:24 -0700
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."
Received on Mon Oct 25 2004 - 15:23:27 UTC

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