From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: owner-Match in 2.6.20-rc5 (fwd) Date: Thu, 25 Jan 2007 13:01:11 -0800 (PST) Message-ID: <20070125.130111.26966608.davem@davemloft.net> References: Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, netfilter-devel@lists.netfilter.org To: kadlec@blackhole.kfki.hu Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-devel-bounces@lists.netfilter.org Errors-To: netfilter-devel-bounces@lists.netfilter.org List-Id: netfilter-devel.vger.kernel.org From: Jozsef Kadlecsik Date: Thu, 25 Jan 2007 21:31:56 +0100 (CET) > The report below was posted on the netfilter user list. Isn't there any > ill side effect by reverting the change? Performance regression :-( This optimization saves a whole handful of heavy atomic operations in the packet transmit path of TCP. As I understand it, the owner-Match is not in the upstream tree, and it's the only thing that cares, so I see no reason to cater for it.