Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932442AbVJCViR (ORCPT ); Mon, 3 Oct 2005 17:38:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932693AbVJCViR (ORCPT ); Mon, 3 Oct 2005 17:38:17 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:55206 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932442AbVJCViP (ORCPT ); Mon, 3 Oct 2005 17:38:15 -0400 Subject: Re: what's next for the linux kernel? From: Alan Cox To: Luke Kenneth Casson Leighton Cc: Vadim Lobanov , Rik van Riel , linux-kernel@vger.kernel.org In-Reply-To: <20051003210722.GI8548@lkcl.net> References: <20051002204703.GG6290@lkcl.net> <20051002230545.GI6290@lkcl.net> <20051003005400.GM6290@lkcl.net> <1128367120.26992.44.camel@localhost.localdomain> <20051003210722.GI8548@lkcl.net> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Mon, 03 Oct 2005 23:05:45 +0100 Message-Id: <1128377145.26992.53.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1072 Lines: 23 On Llu, 2005-10-03 at 22:07 +0100, Luke Kenneth Casson Leighton wrote: > made? _cool_. actual hardware. new knowledge for me. do you know > of any online references, papers or stuff? [btw just to clarify: > you're saying you have a NUMA bus or you're saying you have an > augmented SMP+NUMA+separate-parallel-message-passing-bus er .. thing] Its a standard current Intel feature. See "mwait" in the processor manual. The CPUs are also smart enough to do cache to cache transfers. No special hardware no magic. And unless I want my messages to cause interrupts and wake events (in which case the APIC does it nicely) then any locked operation on memory will do the job just fine. I don't need funky hardware on a system. The first point I need funky hardware is between boards and that isn't consumer any more. Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/