From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: Juliusz.Chroboczek@pps.jussieu.fr, linville@tuxdriver.com,
shemminger@vyatta.com, kaber@trash.net, netdev@vger.kernel.org,
andi@firstfloor.org
Subject: Re: [PATCH net-next-2.6 v4] net_sched: SFB flow scheduler
Date: Thu, 24 Feb 2011 06:40:35 +0100 [thread overview]
Message-ID: <1298526035.2898.20.camel@edumazet-laptop> (raw)
In-Reply-To: <20110223.140614.112607341.davem@davemloft.net>
Le mercredi 23 février 2011 à 14:06 -0800, David Miller a écrit :
> From: Eric Dumazet <eric.dumazet@gmail.com>
> Date: Wed, 23 Feb 2011 21:56:17 +0100
>
> > This is the Stochastic Fair Blue scheduler, based on work from :
>
> Applied with the 'static' fix, thanks Eric!
Thanks David !
My next step is to expand the idea I had some time ago (with my SFQ
works in december) :
Add a generic (core) service :
- Timestamp skb when it enters qdisc (might use skb->tstamp ?)
- At dequeue time, compute the delay.
1) Be able to mark/drop the packet right before giving it to device if
delay above a threshold, or use an array of thresholds depending on TOS
2) Integrate the delay into one EWMA
3) For SFB : Use the EWMA to eventually replace the non convenient
penalty_box by auto adaptative mechanism : Allow non elastic flows to
take part of the bandwidth, using a drop/mark probability depending on
this EWMA.
next prev parent reply other threads:[~2011-02-24 5:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20110221160306.GA9650@tuxdriver.com>
[not found] ` <1298308283.2849.5.camel@edumazet-laptop>
[not found] ` <1298390536.2861.9.camel@edumazet-laptop>
2011-02-23 15:14 ` [PATCH net-next-2.6 v3] net_sched: SFB flow scheduler Eric Dumazet
2011-02-23 15:43 ` Stephen Hemminger
2011-02-23 16:13 ` Eric Dumazet
2011-02-23 16:20 ` Patrick McHardy
2011-02-23 16:24 ` Patrick McHardy
2011-02-23 16:48 ` Eric Dumazet
2011-02-23 16:58 ` Patrick McHardy
2011-02-23 17:16 ` Eric Dumazet
2011-02-23 17:05 ` [PATCH] net_sched: long word align struct qdisc_skb_cb data Eric Dumazet
2011-02-23 17:30 ` Stephen Hemminger
2011-02-23 22:17 ` David Miller
2011-02-23 20:56 ` [PATCH net-next-2.6 v4] net_sched: SFB flow scheduler Eric Dumazet
2011-02-23 21:11 ` Stephen Hemminger
2011-02-23 21:28 ` Eric Dumazet
2011-02-23 21:30 ` David Miller
2011-02-23 22:06 ` David Miller
2011-02-24 5:40 ` Eric Dumazet [this message]
2011-02-24 6:51 ` Stephen Hemminger
2011-02-24 7:14 ` Eric Dumazet
2011-02-24 7:18 ` Eric Dumazet
2011-03-24 17:44 ` [PATCH iproute2] tc : " Eric Dumazet
2011-03-24 21:59 ` Stephen Hemminger
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