From: Eric Dumazet <eric.dumazet@gmail.com>
To: "Erdt, Ralph" <ralph.erdt@fkie.fraunhofer.de>
Cc: Rick Jones <rick.jones2@hp.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: AW: RFC: replace packets already in queue
Date: Mon, 02 Jul 2012 09:31:50 +0200 [thread overview]
Message-ID: <1341214310.5269.27.camel@edumazet-glaptop> (raw)
In-Reply-To: <FB112703C4930F4ABEBB5B763F964911393795D6@MAILSERV2A.lorien.fkie.fgan.de>
On Mon, 2012-07-02 at 07:02 +0000, Erdt, Ralph wrote:
> Even if the wireless queue is a problem (because of our setup, this is
> not a problem), the network stack queue (*) is the biggest queue, and
> a good point to optimize.
Hmm, I am not convinced you have no queues on wireless.
Please describe how you managed this.
In fact this is the biggest problem with wireless : mac82011 framework
aggressively pull packets from Linux packet qdisc in order to perform
packet aggregation.
Most packets don't stay in qdisc but are sitting in wireless driver,
unless you really flood it. If it happens, you already are in trouble.
So code your qdisc thing, but I am not sure you'll get much improvement.
You would need to implement it in wireless code instead.
next prev parent reply other threads:[~2012-07-02 7:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-28 13:18 RFC: replace packets already in queue Erdt, Ralph
2012-06-28 16:24 ` Rick Jones
2012-06-29 8:46 ` AW: " Erdt, Ralph
2012-06-29 9:06 ` Eric Dumazet
2012-07-02 7:02 ` Erdt, Ralph
2012-07-02 7:31 ` Eric Dumazet [this message]
2012-07-02 8:38 ` AW: " Erdt, Ralph
2012-07-02 17:25 ` Rick Jones
2012-07-02 20:32 ` Nicolas de Pesloüan
2012-07-02 21:56 ` Eric Dumazet
2012-07-03 7:29 ` AW: " Erdt, Ralph
2012-07-03 10:02 ` RFC: (now non Base64) " Erdt, Ralph
2012-07-04 20:32 ` Nicolas de Pesloüan
2012-07-18 14:50 ` AW: " Erdt, Ralph
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