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Re: [ns] delay jitter



Iyad Al Khatib wrote:

> every scheduler is functioning with its worst case behavior. Now this gives
> rise to a questions on what a worst case behavior is for a scheduler. The
> answer is that we just have to identify that over our connection with the
> help of knowledge about the schedulers. A good point to mention is that
> many schedulers nowadays use WFQ or Weighted Fair Queuing techniques ,
> mostly Round Rubin ones. We can discuss this aside if you like, but it is
> just a tip for those who want to learn more.

Hi
    I read your explaination - it present comprehensive image of delay jitter.
You mentioned WFQ scheduler. Can you explain 'delay bound' for this scheduler,
why SelfClocked fair q. has large delay bound while Virtual Clock has small
delay bound ?
Thanks in advance
Greetings R.W.

--
Rafal Wielicki <mailto:rafal@thalassa.iopan.gda.pl>
Technical University of GdaƄsk, Telecommunications Faculty
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UNIX *is* user friendly. It is just a bit selective about his friends.