From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: SACK scoreboard Date: Wed, 9 Jan 2008 15:02:48 +0100 Message-ID: <20080109140248.GA12855@one.firstfloor.org> References: <4783AA29.3080406@psc.edu> <20080108.144456.173014334.davem@davemloft.net> <20080108.223925.105105455.davem@davemloft.net> <20080109070318.GA8581@one.firstfloor.org> <20080109094725.GA22140@2ka.mipt.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andi Kleen , David Miller , jheffner@psc.edu, ilpo.jarvinen@helsinki.fi, lachlan.andrew@gmail.com, netdev@vger.kernel.org, quetchen@caltech.edu To: Evgeniy Polyakov Return-path: Received: from one.firstfloor.org ([213.235.205.2]:47550 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753167AbYAIOAS (ORCPT ); Wed, 9 Jan 2008 09:00:18 -0500 Content-Disposition: inline In-Reply-To: <20080109094725.GA22140@2ka.mipt.ru> Sender: netdev-owner@vger.kernel.org List-ID: > Postponing freeing of the skb has major drawbacks. Some time ago I Yes, the trick would be to make sure that it also does not tie up too much memory. e.g. it would need some throttling at least. Also the fast path of kmem_cache_free() is actually not that much different from just putting something on a list so perhaps it would not make that much difference. -Andi