From owner-freebsd-chat@FreeBSD.ORG Tue Aug 3 13:57:09 2010 Return-Path: Delivered-To: freebsd-chat@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4707D106566B for ; Tue, 3 Aug 2010 13:57:09 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 196808FC08 for ; Tue, 3 Aug 2010 13:57:09 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id B90F146B6C; Tue, 3 Aug 2010 09:57:08 -0400 (EDT) Received: from jhbbsd.localnet (smtp.hudson-trading.com [209.249.190.9]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 94D598A03C; Tue, 3 Aug 2010 09:57:07 -0400 (EDT) From: John Baldwin To: freebsd-chat@freebsd.org Date: Tue, 3 Aug 2010 09:30:24 -0400 User-Agent: KMail/1.13.5 (FreeBSD/7.3-CBSD-20100217; KDE/4.4.5; amd64; ; ) References: <201008021824.MAA22246@lariat.net> In-Reply-To: <201008021824.MAA22246@lariat.net> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201008030930.24070.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Tue, 03 Aug 2010 09:57:07 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=4.2 tests=AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: Brett Glass Subject: Re: Packet steering/SMP X-BeenThere: freebsd-chat@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Non technical items related to the community List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Aug 2010 13:57:09 -0000 On Monday, August 02, 2010 2:23:57 pm Brett Glass wrote: > The article at > > http://www.computerworld.com/s/article/9180022/Latest_Linux_kernel_uses_Google_made_protocols > > describes SMP optimizations to the Linux kernel (the article > mistakenly calls them "protocols," but they're not) which steer the > processing of incoming network packets to the CPU core that is > running the process for which they're destined. (Doing this > requires code which straddles network layers in interesting ways.) > The article claims that these optimizations are Google's invention, > though they simply seem like a common sense way to make the best > use of CPU cache. > > The article claims dramatic performance improvements due to this > optimization. Anything like this in the works for FreeBSD? You should talk to Robert Watson, he is working on something similar. -- John Baldwin