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

[Nivedita Singhvi <niv@xxxxxxxxxx>]

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