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

[Andy Furniss]

Sophana Kok wrote:
> Markus Schulz wrote:
> 
>> On Wednesday 16 November 2005 16:03, Andy Furniss wrote:
>>  
>>
>>> I use something similar and use ceil 286kbit while synced at 288kbit
>>> without problems.
>>>   
> 
> What thing similar do you use? I don't understand why it is not in the 
> kernel already.

I use my own based on the tc tweak that Ed Wildgoose posted to the list, 
but patching htb aswell so it's perfect (the tc alone patch is a cell 
too big for some packet sizes)

> 
>> 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.
>>  
>>
> How?
> 
> The ppp over aal5 atm encapsulation is in almost all adsl lines isn't it?
> Isn't it standard?

In jeesper's thesis there is a table - Knowing you overhead can be 
tricky - but you can test, best if your modem gives cell counters or 
even if it doesn't on adsl you may be able to see differences in 
throughput/latency if you look hard enough.

> This makes a huge number of lines in the world.
> Are there other patches ?
> or distributions that already include these patches?

I don't think so, patching is easy you need to test and know your 
overheads aswell.

Andy.