From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: [PATCH nf-next 0/3] netfilter: speed up netns cleanup Date: Mon, 1 May 2017 11:20:36 +0200 Message-ID: <20170501092036.GA3476@salvia> References: <20170424133741.2707-1-fw@strlen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netfilter-devel@vger.kernel.org To: Florian Westphal Return-path: Received: from mail.us.es ([193.147.175.20]:54390 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S376439AbdEAJUl (ORCPT ); Mon, 1 May 2017 05:20:41 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 187BD1F4B81 for ; Mon, 1 May 2017 11:20:35 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 0914FDA870 for ; Mon, 1 May 2017 11:20:35 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 048E2FF137 for ; Mon, 1 May 2017 11:20:33 +0200 (CEST) Content-Disposition: inline In-Reply-To: <20170424133741.2707-1-fw@strlen.de> Sender: netfilter-devel-owner@vger.kernel.org List-ID: On Mon, Apr 24, 2017 at 03:37:38PM +0200, Florian Westphal wrote: > low hanging fruits to speed up netns cleanup in netfilter. > We're way too happy to issue expensive synchronize_rcu() all > over the place. > > On my test vm 8 processes doing 32 unshare each finish in ~3 minutes, > with these patches it gets down to 40 seconds. If this is a script, can we place this somewhere to keep an eye on this? > We could probably further improve this. Series applied. I have taken v2 of 2/3.