Re: [LARTC] has anyone tried adsl-optmizer kernel patches for dsl

[Markus Schulz <msc@antzsystem.de>]

On Wednesday 16 November 2005 16:03, Andy Furniss wrote:
> sophana wrote:
> > Hi
> >
> > I'm using wondershaper like script. But noticed imperfect
> > scheduling.
> >
> > By googling, I found some patches that takes the aal5 atm overhead
> > in the scheduling algorithms.
> > http://www.adsl-optimizer.dk/ADSL-optimizer/
> >
> > Before trying it, has anyone tried these patches? they apply on
> > 2.4.29 kernel and 2.6.9 TC. I use centos4 with a 2.6 kernel, so I
> > can't try these easily.
>
> They should be OK as long as you are sure about your overheads.
>
> I use something similar and use ceil 286kbit while synced at 288kbit
> without problems.
>
> If your modem is connected by eth rather than ppp then htb/whatever
> will see the packet size as ip len + 14 - so you need to account for
> that.

can you explain this a bit more please?

> I think that produces a corner case (overhead < 14) where you would
> need to put in a negative number - I don't think that will work, but
> haven't tried.

should be easy to patch in. Overhead is only a simple variable which 
will be added in htb/* module for each paket. Only sign/unsign problem  
should be considered.

msc
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