2001-04-22 17:39:37

by Alex Valys

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Subject: ATA66 on a Via Chipset

Recently, I decided to try out Debian 2.2. I downloaded the iso, installed
it, and went to compile kernel 2.4.3. I used the same .config file I've used
before, containing all the appropriate support (ATA66, notably) for my Via
Apollo Pro133A-based motherboard, installed it, and rebooted. To make sure
everything worked correctly, I ran hdparm -t /dev/hda, and was amazed to see
transfer rates of 22 megs/second. In redhat, the most I can get is 15. So,
I immediately reinstalled redhat, and (using the same .config file), compiled
the kernel again. After rebooting, my transfer rates were still 15
megs/second. So, my question is - why were they so much faster in debian,
and how can I replicate that in redhat?
--A. Valys


2001-04-22 18:04:40

by Arjan van de Ven

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Subject: Re: ATA66 on a Via Chipset

In article <01042213394300.23387@athena> you wrote:
> megs/second. So, my question is - why were they so much faster in debian,
> and how can I replicate that in redhat?

What version ? 7.1 tries to take countermeasures against the datacorruption
bugs in the VIA chipsets....