From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: RDMA will be reverted Date: Tue, 25 Jul 2006 00:33:44 -0700 (PDT) Message-ID: <20060725.003344.125313848.davem@davemloft.net> References: <20060725055127.GA5103@2ka.mipt.ru> <20060724.234853.112197982.davem@davemloft.net> <20060725065921.GB30561@2ka.mipt.ru> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: rdreier@cisco.com, ak@suse.de, tom@opengridcomputing.com, netdev@vger.kernel.org, akpm@osdl.org Return-path: Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:27051 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1751305AbWGYHds (ORCPT ); Tue, 25 Jul 2006 03:33:48 -0400 To: johnpol@2ka.mipt.ru In-Reply-To: <20060725065921.GB30561@2ka.mipt.ru> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Evgeniy Polyakov Date: Tue, 25 Jul 2006 10:59:21 +0400 > As a side completely unrelated to either my or others work note :) - > I think it is a nanooptimisation - we get a bit of performance here, > and lose those bit in other place. > When bag is filled, there is no much sence of rearranging some stuff > inside to be able to place another one - it is better to buy new bag. It is a matter of what the viewpoint is, I suppose. I think in this specific case it might turn out to be better for the scheduler to respond to what the device throws at it, rather than the other way around. And in that case we need no feedback from scheduler to cpu demux engine.