Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756064AbYJGIi6 (ORCPT ); Tue, 7 Oct 2008 04:38:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751488AbYJGIir (ORCPT ); Tue, 7 Oct 2008 04:38:47 -0400 Received: from relay.2ka.mipt.ru ([194.85.80.65]:36790 "EHLO 2ka.mipt.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751373AbYJGIir (ORCPT ); Tue, 7 Oct 2008 04:38:47 -0400 Date: Tue, 7 Oct 2008 12:37:51 +0400 From: Evgeniy Polyakov To: Corey Minyard Cc: David Miller , dada1@cosmosbay.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, shemminger@vyatta.com, paulmck@linux.vnet.ibm.com Subject: Re: [PATCH 3/3] Convert the UDP hash lock to RCU Message-ID: <20081007083750.GB17079@2ka.mipt.ru> References: <20081006185026.GA10383@minyard.local> <48EA8197.6080502@cosmosbay.com> <20081006.144002.56418911.davem@davemloft.net> <48EA9A59.1090306@acm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48EA9A59.1090306@acm.org> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 626 Lines: 16 On Mon, Oct 06, 2008 at 06:08:09PM -0500, Corey Minyard (minyard@acm.org) wrote: > Would using SLAB_DESTROY_BY_RCU be ok, or would that be too expensive? I tested skb destruction via RCU path, and got 2.5 times worse numbers with small-packets-bulk-transfer workload. For more details http://tservice.net.ru/~s0mbre/blog/devel/networking/2006_12_05_1.html -- Evgeniy Polyakov -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/