Re: hfsc scheduler

Linux Advanced Routing and Traffic Control

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yoyo wrote:
i remember on this list someone tried hfsc (he had some nice
comparison graphs between hfsc&htb) but i can't seem to find the
message in the archives.. :(

This one.

Andy.


Vincent Perrier wrote:

> HTB versus HFSC, both qdisc offer the same kind of service,
> if you want to see comparative test results, go to
> http://www.rawsoft.org
> at the line "TEST RESULTS" you will find the results for
> a sharing test and a burst test.
> You will see that both qdisc are good.


Nice comparision, very interesting. Note that you have a small misconfiguration in your HFSC setup. On page 8 you say "The shaping is impacted by real time bursts". This is only because your real-time classes are not part of the link-sharing hierarchy. If you add link-share curves to the real-time classes which are equal to the real-time curves shaping won't be impacted.

Regards
Patrick

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