Re: [RESEND] tuning linux for high network performance?

From: Nivedita Singhvi (niv@us.ibm.com)
Date: Wed Oct 23 2002 - 09:59:59 EST


bert hubert wrote:

> > ...adding the whole profile output - sorted by the first column this time...
> >
> > 905182 total 0.4741
> > 121426 csum_partial_copy_generic 474.3203
> > 93633 default_idle 1800.6346
> > 74665 do_wp_page 111.1086
>
> Perhaps the 'copy' also entails grabbing the page from disk, leading to
> inflated csum_partial_copy_generic stats?

I think this is strictly a copy from user space->kernel and vice versa.
This shouldnt include the disk access etc.

thanks,
Nivedita
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