[Gllug] IDE issues

Paul Brazier pbrazier at cosmos-uk.co.uk
Mon Apr 15 10:35:15 UTC 2002

> And another thing.
> I have a new (Athlon) m/b which has the new VIA KT333 chipset and an
> ATA133 IDE channel with an IBM ATA100 HD in it. Under Linux (Mandrake
> 8.2) 2.4.18, the hard drive access CHUGS big time when shifting large
> files about. When copying to the machine across the network, it caches
> the first 20 or 30 MB and then when it flushes to disk, the whole
> machine slows to a crawl, the mouse/keyboard barely respond etc...
> I mean I know IDE requires more CPU power than SCSI but this is
> ridiculous. Is it because of the newness of the chipset and lack of
> driver support or should I disable UDMA133 (or whatever it's 
> called) in
> BIOS? Maybe hdparm?

I've got a similar machine (Athlon with VIA KTsomething) running Debian
with a 2.4.18 kernel that has similar problems - the mouse freezing for
several seconds if there's a heavy background process running.
It didn't seem to happen using RedHat 7.1 kernel 2.4.17 on the same
machine though so I guess it's a configuration issue.


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