From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ryousei Takano" Subject: Re: HTB/HSFC shaping precision Date: Thu, 22 Nov 2007 11:07:20 +0900 Message-ID: References: <20071120211258.M55249@visp.net.lb> <20071121094710.GA2295@ff.dom.local> <20071121103024.M12218@visp.net.lb> <1195657607.4437.8.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "Denys Fedoryshchenko" , "Jarek Poplawski" , netdev@vger.kernel.org, takano-ryousei@aist.go.jp To: hadi@cyberus.ca Return-path: Received: from el-out-1112.google.com ([209.85.162.178]:18866 "EHLO el-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751970AbXKVCHX (ORCPT ); Wed, 21 Nov 2007 21:07:23 -0500 Received: by el-out-1112.google.com with SMTP id v27so1024036ele for ; Wed, 21 Nov 2007 18:07:22 -0800 (PST) In-Reply-To: <1195657607.4437.8.camel@localhost> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi jamal and denys, > > One message later, thats what i dreamed about :-) > > Subject: [RFC][PATCH 1/3] NET_SCHED: PSPacer qdisc module > > On website they have very good explanation... > > http://www.gridmpi.org/gridtcp.jsp > > That looks interesting - without reading the papers a few questions are > developing in my brain cells; for example it looks very similar to what > the chelsio NICs claim to do (which could be a good thing for TCP). > Whenever i see someone implementing something in hardware, i always get > flushes of "patents". > Thanks for looking our web page. PSPacer has quite accurate shaping precision. The point is that special hardware like the chelsio NICs is not required of it. PSPacer uses a gap packet, whose format is IEEE 802.3x pause frame, to control the interval between outgoing packets. As far as I know, it is a unique approach. Best Regards, Ryousei Takano