RE: ABIT BP6 & UDMA-66: Support for Debian Linux
I know this isn't helpful, but here is some additional information. I have
a P233 with a non-UDMA66 45GB hard drive. I get about 12MB/s. I question
the utility of the hdparm performance. This doesn't appear to be random
reads. Either way, I get much better performance with Storm (based on
debian) using 2.2.16 kernel. Maybe debian has an older kernel?
paul
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Paul McHale
Work: 937-253-7610 Double E Solutions
Mobile: 937-371-2828 4912 Effingham
Fax: 413-215-3232 Dayton, Ohio 45431
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> -----Original Message-----
> From: wilson [mailto:wilson]On Behalf Of Wilson Yau
> Sent: Wednesday, June 14, 2000 7:55 PM
> To: debian-user@lists.debian.org
> Subject: ABIT BP6 & UDMA-66: Support for Debian Linux
>
>
> Hi, everyone!
>
> My system is Abit BP6 w/Dual Celeron 500MHz CPUs & 128MB PC-100 SDRAM on
> board. One 18GB IBM UDMA-66 7200rpm HDD (master) & One 20GB IBM UDMA-66
> 7200rpm HDD (Slave) connected to the first ATA-66 channel.
>
> I frist installed the Gentus Linux (Abit's RedHat-based distribution)
> from the CD come with the main board, and both SMP and UDMA-66
> functioned at after the first boot. (It's almost a painless
> installation - very smooth indeed.) Execute "hdparm -t /dev/hde6" gave
> a benchmark of something like 20MB per sec (very impressive! I have
> another system running dual PIII-600 Coppermine with two 9GB SCSI HDD
> which gave a figure something like 18MB/sec)
>
> Then, I changed my mind to remove Gentus and install Debian Potato. By
> choosing installation from floppies, I downloaded all the required image
> including the UDMA-66 patch from
>
> ftp://ftp.uk.debian.org/debian/dists/potato/main/disks-i386/2.2.15
-2000-06-07/images-1.44/udma66/
Installation was fine (the rescue disk could detect the ATA-66 HDD - no
need to swop them to ATA-33 channel during installation). SMP was not
ready yet. Kernel had to be recompiled. No Problem!
However, when I did "hdparm -t /dev/hde6" & "hdparm -t /dev/hdf1", this
time it gave a figure between 2 to 3 MB per sec. Even slower than a
ATA-33 5400rpm HDD in a single PII-266 64MB RAM system.
Q.1/ Can anyone explain to me this phenomenon?
Q.2/ How to optimize my system performance (esp the UDMA-66 HDD) with
Debian Linux?
Many thanks for your help!
Wilson
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