From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [RFC] net: ipv4 -- Introduce ifa limit per net Date: Wed, 09 Mar 2016 15:27:30 -0500 (EST) Message-ID: <20160309.152730.691838022304871697.davem@davemloft.net> References: <20160309170921.GL2207@uranus.lan> <20160309.122400.951958972682394628.davem@davemloft.net> <20160309175307.GM2207@uranus.lan> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: alexei.starovoitov@gmail.com, eric.dumazet@gmail.com, netdev@vger.kernel.org, solar@openwall.com, vvs@virtuozzo.com, avagin@virtuozzo.com, xemul@virtuozzo.com, vdavydov@virtuozzo.com, khorenko@virtuozzo.com To: gorcunov@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:33506 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753847AbcCIU1d (ORCPT ); Wed, 9 Mar 2016 15:27:33 -0500 In-Reply-To: <20160309175307.GM2207@uranus.lan> Sender: netdev-owner@vger.kernel.org List-ID: From: Cyrill Gorcunov Date: Wed, 9 Mar 2016 20:53:07 +0300 > On Wed, Mar 09, 2016 at 12:24:00PM -0500, David Miller wrote: > ... >> We asked you for numbers without a lot of features enabled, it'll >> help us diagnose which subsystem still causes a lot of overhead >> much more clearly. >> >> So please do so. > > Sure. Gimme some time and I'll back with numbers. > >> Although it's already pretty clear that netfilter conntrack >> cleanup is insanely expensive. > > Yes. I can drop it off for a while and run tests without it, > then turn it back and try again. Would you like to see such > numbers? That would be very helpful, yes.