From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@redhat.com>
Subject: Fw: hfsc and huge set of rules
Date: Thu, 29 Jul 2004 21:18:44 -0700
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Looks like qdisc destruction has some expensive algorithms.
Any quick ideas about the root culprit at least in the hfsc
case?  He says htb does it too.

Begin forwarded message:

Date: Tue, 27 Jul 2004 11:47:02 +0200
From: Tomasz Paszkowski <tomasz.paszkowski@e-wro.pl>
To: linux-kernel@vger.kernel.org
Subject: hfsc and huge set of rules


Hello,

I'am running hfsc qdisc with huge set of rules loaded.

root@hades:/home/system/scr/etc/hfsc_rebuild# cat tc.batch | grep hfsc | wc -l
  27884


Always when I delete the root qdisc (qdisc del dev eth0 root)
the machine stop responding for about 5-6 seconds. As I think it's due the
hfsc_destory_qdisc is executed in main kernel thread. Similar problem is
present also in htb scheduler.

Is there any quick solution to solve this problem ?

-- 
Tomasz Paszkowski
Administrator
Miejskie Sieci Informatyczne e-wro
http://www.e-wro.pl


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