Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 13 Aug 2002 16:32:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 13 Aug 2002 16:32:36 -0400 Received: from pc2-cwma1-5-cust12.swa.cable.ntl.com ([80.5.121.12]:46330 "EHLO irongate.swansea.linux.org.uk") by vger.kernel.org with ESMTP id ; Tue, 13 Aug 2002 16:32:35 -0400 Subject: Re: [PATCH] NUMA-Q disable irqbalance From: Alan Cox To: Linus Torvalds Cc: "Martin J. Bligh" , linux-kernel , Matt Dobson In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 (1.0.3-6) Date: 13 Aug 2002 21:34:02 +0100 Message-Id: <1029270842.21007.113.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 838 Lines: 17 On Tue, 2002-08-13 at 21:35, Linus Torvalds wrote: > Now, there have been other changes too - like the scheduler (and my > current P4 has a different SCSI interface), but I dunno. The thing I > attributed the improvements in interactive feel was the fact that the work > got balanced out more sanely. I've been benching 2.4 with the O(1) scheduler and the process load balancing changes and seeing this. Conceptually I can understand why it would occur (cache affinity) but if so we ought to do some much slower (maybe once every 5 seconds based on accumulated averages) balancing not none - 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/