From: Patrick McHardy <kaber@trash.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Internal Qdisc
Date: Wed, 27 Apr 2005 11:34:38 +0000 [thread overview]
Message-ID: <426F78CE.7080603@trash.net> (raw)
In-Reply-To: <BAY20-F9E699507CF9FC47AA267492220@phx.gbl>
R Harper wrote:
>> TBF provides traffic shaping by the Token Bucket theory, while SFQ makes
>> sure(actually just hints) swap packets in different sessions so that no
>> particular session will hang around for a long time.
>
>
> Yes I know the difference between TBF and SFQ.
>
> I was trying to ask about the programming/architectural difference
> between creating a *internal Qdisc* for buffering (like TBF does) and
> then using
> q->qdisc->enqueue(skb, q->qdisc) etc. commands for queueing ...
>
> or just use the qdisc "provided"?
> __skb_enqueue(skb, skq->q) etc commands for queueing....
Internal qdiscs don't show up in dev->qdisc_list and thus are invisible
to ip qdisc show. They're usually used as place-holder leaf qdiscs
until the user configures a different one. SFQ doesn't use them to
fit all internal queues in one page.
Regards
Patrick
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prev parent reply other threads:[~2005-04-27 11:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-27 10:23 [LARTC] Internal Qdisc R Harper
2005-04-27 10:41 ` Leo
2005-04-27 11:00 ` R Harper
2005-04-27 11:34 ` Patrick McHardy [this message]
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