From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752856Ab2GTU3i (ORCPT ); Fri, 20 Jul 2012 16:29:38 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:55362 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751985Ab2GTU3h (ORCPT ); Fri, 20 Jul 2012 16:29:37 -0400 Date: Fri, 20 Jul 2012 13:29:34 -0700 (PDT) Message-Id: <20120720.132934.854459589738348753.davem@davemloft.net> To: eric.dumazet@gmail.com Cc: nzimmer@sgi.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Robin.Holt@sgi.com Subject: Re: [RFC] net: further seperate dst_entry.__refcnt from cache contention From: David Miller In-Reply-To: <1342815411.2626.7936.camel@edumazet-glaptop> References: <1342813587-31601-1-git-send-email-nzimmer@sgi.com> <1342815411.2626.7936.camel@edumazet-glaptop> X-Mailer: Mew version 6.5 on Emacs 24.0.97 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Eric Dumazet Date: Fri, 20 Jul 2012 22:16:51 +0200 > Another idea concerning very hot dst would be to clone them on demand. The FIB info cached dsts could also be made per-cpu. And yes, the only reason I'm entertaining that idea now is the fact that we'll have the number of dsts in the system under control.