From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Grundler Subject: Re: Timeline of IPoIB performance Date: Mon, 10 Oct 2005 16:30:54 -0700 Message-ID: <20051010233054.GA11213@esmail.cup.hp.com> References: <1128672413.13948.326.camel@localhost> <52br20lsei.fsf@cisco.com> <1128738350.13945.369.camel@localhost> <521x2tgrim.fsf@cisco.com> <20051010212652.GG9613@esmail.cup.hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, openib-general@openib.org Return-path: To: Grant Grundler Content-Disposition: inline In-Reply-To: <20051010212652.GG9613@esmail.cup.hp.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: openib-general-bounces@openib.org Errors-To: openib-general-bounces@openib.org List-Id: netdev.vger.kernel.org On Mon, Oct 10, 2005 at 02:26:52PM -0700, Grant Grundler wrote: ... > If it's interleaving, every other cacheline will be "local". ISTR AMD64 was page-interleaved but then got confused by documents describing "128-bit" 2-way interleave. I now realize the 128bit is refering to interleave between two "banks" of memory behind each memory controller. ie 2 * 128-bit provides in the 32-byte cacheline size that most x86 programs expect. Anyway, I'm hoping that we'll see a consistent result if node interleave is turned off. sorry for the confusion, grant