From: Eric Dumazet <eric.dumazet@gmail.com>
To: Dave Taht <dave.taht@gmail.com>
Cc: David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: [PATCH net-next] net_sched: red: split red_parms into parms and vars
Date: Fri, 06 Jan 2012 06:47:02 +0100 [thread overview]
Message-ID: <1325828822.2748.27.camel@edumazet-laptop> (raw)
In-Reply-To: <1325770777.2415.35.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Le jeudi 05 janvier 2012 à 14:39 +0100, Eric Dumazet a écrit :
> Problems of RED are :
>
> 1) the 'average' on highly variable trafic : It means nothing
> interesting at all.
>
> 2) the idle time management requires to specify the link bandwidth, as a
> fixed value. This is a problem.
A third problem is that ECN marking is performed on the packet we add to
the tail of the queue. It's very late...
I am currently testing my SFQRED and I try to add ECN in the first
packet in queue so that TCP can react faster.
next prev parent reply other threads:[~2012-01-06 5:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-05 12:25 [PATCH net-next] net_sched: red: split red_parms into parms and vars Eric Dumazet
2012-01-05 13:03 ` Dave Taht
2012-01-05 13:39 ` Eric Dumazet
2012-01-06 5:47 ` Eric Dumazet [this message]
2012-01-06 8:31 ` Dave Taht
2012-01-06 16:31 ` [PATCH] net_sched: sfq: add optional RED on top of SFQ Eric Dumazet
2012-01-06 16:56 ` Dave Taht
2012-01-06 17:07 ` Eric Dumazet
2012-01-06 17:36 ` Dave Taht
2012-01-06 18:30 ` Rick Jones
2012-01-06 19:33 ` Eric Dumazet
2012-01-06 19:43 ` Rick Jones
2012-01-06 20:26 ` Dave Taht
2012-01-06 17:09 ` Stephen Hemminger
2012-01-06 17:25 ` Eric Dumazet
2012-01-10 9:40 ` Dave Taht
2012-01-13 4:06 ` David Miller
2012-01-05 19:08 ` [PATCH net-next] net_sched: red: split red_parms into parms and vars David Miller
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