Re: questiona about CBQ algorithm in Linux

Linux Advanced Routing and Traffic Control

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Hello!

> Sorry for my stubborn question. I read the S.Floyd paer "Link-sharing and
> resource mamagement...." On page 5, they said" The estimator estimates the
> bandwidth used byeach class over the appropriate time interval, to determine
> whether or not each class has been receiveing its link -sharing
> bandwidth..."

Appendix A.


> sch_cbq.c comments, not quite sure one line" Linux has no EOI event, so that
> we ca not estimater true idle class idle time..."
> what's EOI event, This is why in Linux, CBQ canot measure bandwidth?

No. No OSes have "EOI event". :-)

CBQ does not measure bandwidth because it does not need it. Period.
Listen, please, do not waste your time for useless phylosophical meditations,
read the paper instead.

Alexey
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