Re: ISDN massive packet drops while DVD burn/verify

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue May 06 2003 - 04:52:38 EST


On Llu, 2003-05-05 at 16:32, Stephan von Krawczynski wrote:
> Let me simply ask back: is the IDE code in nowadays 2.4 kernel so bad, that a
> dual 1,4 GHz PIII cpu with 3 GB ram performs much worse than a 90 MHz P I with
> 64 MB and OS/2 on it???
> _My_ isdn drivers showed _no_ such problems under OS/2 and IDE load...
>
> How did we manage to become that bad?

Our default behaviour in PIO mode is defensive to handle very old controller setups
that chew up disks when the disk gets ahead of the pio transfer.

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