Re: [PATCH 0/2] NET: Accurate packet scheduling for ATM/ADSL

[jamal <hadi@cyberus.ca>]

On Tue, 2006-20-06 at 03:04 +0200, Patrick McHardy wrote:
> jamal wrote:
> > You are still speaking ATM (and the above may still be valid), but: 
> > Could you for example look at the netdevice->type and from that figure
> > out the link layer overhead and compensate for it.
> > Obviously a lot more useful if such activity is doable in user space
> > without any knowledge of the kernel? and therefore zero change to the
> > kernel and everything then becomes forward and backward compatible.
> 
> It would be nice to have support for HFSC as well, which unfortunately
> needs to be done in the kernel since it doesn't use rate tables.
> What about qdiscs like SFQ (which uses the packet size in quantum
> calculations)? I guess it would make sense to use the wire-length
> there as well.

Didnt even think of that ;-> 
Is it getting too complicated? 

BTW, I forgot to mention one thing on the bandwidth issue is we could do
is send netlink events on link speed changes too; some listener
somewhere would then do the adjustment.

cheers,
jamal