From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 39 of 39] IB/ipath - use streaming copy in RDMA interrupt handler to reduce packet loss Date: Thu, 29 Jun 2006 17:47:38 -0700 (PDT) Message-ID: <20060629.174738.85688575.davem@davemloft.net> References: <44A47042.8060203@hp.com> <20060629.173206.48800902.davem@davemloft.net> <44A473D5.70809@hp.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: bos@pathscale.com, akpm@osdl.org, rdreier@cisco.com, mst@mellanox.co.il, openib-general@openib.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:26066 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S964824AbWF3Ark (ORCPT ); Thu, 29 Jun 2006 20:47:40 -0400 To: rick.jones2@hp.com In-Reply-To: <44A473D5.70809@hp.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Rick Jones Date: Thu, 29 Jun 2006 17:44:05 -0700 > Then is prefetching in memcpy really that important to them. Not really, the thread just blocks while waiting for memory. On stores they do a cacheline fill optimization similar to the powerpc. > Relying on PCI-X devices to issue multiple requests then? Perhaps :)