From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: [PATCH] iptables: lock free counters Date: Mon, 02 Mar 2009 23:07:18 +0100 Message-ID: <49AC5896.1010400@trash.net> References: <20090218051906.174295181@vyatta.com> <20090218052747.321329022@vyatta.com> <20090219114719.560999b5@extreme> <499DEF49.3040602@cosmosbay.com> <49A7F262.8040805@cosmosbay.com> <49ABBB21.9080401@trash.net> <49AC1B9D.5030107@cosmosbay.com> <49AC5617.8020404@trash.net> <20090302140243.3aad4d5b@nehalam> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Eric Dumazet , David Miller , Rick Jones , netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, "Paul E. McKenney" To: Stephen Hemminger Return-path: Received: from stinky.trash.net ([213.144.137.162]:55488 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753101AbZCBWHX (ORCPT ); Mon, 2 Mar 2009 17:07:23 -0500 In-Reply-To: <20090302140243.3aad4d5b@nehalam> Sender: netfilter-devel-owner@vger.kernel.org List-ID: Stephen Hemminger wrote: > On Mon, 02 Mar 2009 22:56:39 +0100 > Patrick McHardy wrote: >=20 >> Eric Dumazet wrote: >>> Patrick McHardy a =E9crit : >>>> Eric Dumazet wrote: >>>>> real 0m1.810s >>>>> user 0m0.000s >>>>> sys 0m0.001s >>>> Thats really slow ... >>>> >>>>> CONFIG_NO_HZ=3Dy >>>>> CONFIG_HZ_1000=3Dy >>>>> CONFIG_HZ=3D1000 >>>>> >>>>> One cpu is 100% handling softirqs, could it be the problem ? >>>> Is this fixed by your RCU quiescent state fix? >>> Yes it is :) >> Great, thanks :) >=20 > I wonder if the RCU quiescent fix should go in 2.6.29 because it > fixes other issues like route changing RCU latency under Dos attack. From what I can tell, it should. -- To unsubscribe from this list: send the line "unsubscribe netfilter-dev= el" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html