Re: [LARTC] beta-release of H-FSC port for Linux 2.6

[Alexey Sheshka <pulsar@bofh.homeunix.org>]

On Sat, 01 Nov 2003 15:45:04 +0100
Patrick McHardy <kaber@trash.net> wrote:


> Not sure what you mean with "competitors", I made this port for
> fun after happily discovering that the code was very nicely
> written (unlike the version mentioned in the paper). This should
> not be understood as dissatisfaction with HTB, I was perfectly
> happy with the entire time I used it.
> 
> So why would you want to use H-FSC .. you're right, a major
> feature of H-FSC is decoupling of bandwidth and delay, but it
> also offers delay _guarantees_ if configured correctly. This is
> very important for streaming, VoIP, .. (and gamers of course).
> I don't know if my understanding of HTB's algorithm is correct,
> but it is basically a chained token bucket, so delay is directly
> coupled to bandwidth. Also I believe it always tries to dequeue
> "quantum" bytes at once so classes might go overlimits for a
> limited period of time. This hurts delay. On the other hand,
> HTB is more expressive due to priorites. So I'd say it basically
> comes down to expressiveness vs. delay guarantees. However
> I was able to convert my HTB config to something very similar
> with H-FSC depite using priorites with HTB.
> 
> I hope that anwers your question.
> 
> Best regards,
> Patrick
> 
> 

Sound interesting, but where I can find samples of hfsc usage ? I want to try my htb setup and hfsc.

> 
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