From: Andy Furniss <lists@andyfurniss.entadsl.com>
To: lists@andyfurniss.entadsl.com
Cc: Patrick McHardy <kaber@trash.net>,
Corey Hickey <bugfood-ml@fatooh.org>,
Linux Netdev List <netdev@vger.kernel.org>
Subject: Re: [NET_SCHED 00/04]: External SFQ classifiers/flow classifier
Date: Wed, 02 Apr 2008 12:42:49 +0100 [thread overview]
Message-ID: <47F37139.9080303@andyfurniss.entadsl.com> (raw)
In-Reply-To: <47F28758.1010401@andyfurniss.entadsl.com>
Andy Furniss wrote:
> It's cool being able to see the sfq flows.
It's also interesting to notice that allot varies so much.
I have seen +/- 10 * my quantum which I didn't expect, I wonder if it
needs to be cleared when a flow empties or something.
The source for sfq is a bit hard to follow so I don't really know what's
happening. I was dropping with limit of 40 (about a second at my rate)
and had quite a few connections active, hashing on dst.
tcpdump also shows that single flows are getting 3/4/5 packets dequeued
in a row when there are other flows active.
I guess it's hard to tell the state at any one instant when dropping and
making flows dis/reappear but it does seem to behave in a way that
amplifies burstyness.
My quantum = mtu + 14 and there are no giants.
Andy.
next prev parent reply other threads:[~2008-04-02 11:41 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-31 17:58 [NET_SCHED 00/04]: External SFQ classifiers/flow classifier Patrick McHardy
2008-01-31 17:58 ` [NET_SCHED 01/04]: Constify struct tcf_ext_map Patrick McHardy
2008-01-31 17:58 ` [NET_SCHED 02/04]: sch_sfq: add support for external classifiers Patrick McHardy
2008-01-31 17:58 ` [NET_SCHED 03/04]: sch_sfq: make internal queues visible as classes Patrick McHardy
2008-01-31 17:58 ` [NET_SCHED 04/04]: Add flow classifier Patrick McHardy
2008-02-01 2:37 ` [NET_SCHED 00/04]: External SFQ classifiers/flow classifier David Miller
2008-02-02 23:23 ` Corey Hickey
2008-02-04 17:48 ` Patrick McHardy
2008-02-04 18:25 ` Corey Hickey
2008-03-29 23:35 ` Andy Furniss
2008-04-01 12:39 ` Patrick McHardy
2008-04-01 19:04 ` Andy Furniss
2008-04-02 11:42 ` Andy Furniss [this message]
2008-04-02 12:37 ` Patrick McHardy
2008-04-02 16:26 ` Andy Furniss
2008-04-04 10:42 ` Andy Furniss
2008-04-04 10:45 ` Patrick McHardy
2008-04-04 17:01 ` Andy Furniss
2008-04-04 18:54 ` Andy Furniss
2008-04-07 13:43 ` Andy Furniss
2008-04-07 13:44 ` Patrick McHardy
2008-04-07 15:14 ` Andy Furniss
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