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SubjectRe: NAPI and tg3
On 6 Jan 2003, Alan Cox wrote:

> > Ok I can try that, but what about the nice level of ksoftirqd ? Any
> > specific reason for it beeing 19 (lowest priority) and not 0 (equally to
> > most other processes in the system) ?
>
> Its triggered (in theory but not practice) only when we are overloaded, in
> which case we want to do other *useful* work first rather than using all
> the cpu to process requests we can't fulfill
>

I've also tried the NAPI patch for e1000 and it experience the same
performance problem with multithreaded apps. The "NAPI-HOWTO" doesn't
mention that this could be an issue at all. Does any of the NAPI authors
(Jeff ?) have any comments ?

Regards,
--
Steffen Persvold | Scali AS
mailto:sp@scali.com | http://www.scali.com
Tel: (+47) 2262 8950 | Olaf Helsets vei 6
Fax: (+47) 2262 8951 | N0621 Oslo, NORWAY


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