Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761320AbXETDET (ORCPT ); Sat, 19 May 2007 23:04:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759043AbXETDEI (ORCPT ); Sat, 19 May 2007 23:04:08 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:59420 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755675AbXETDEH (ORCPT ); Sat, 19 May 2007 23:04:07 -0400 Message-ID: <464FBA9C.9090208@garzik.org> Date: Sat, 19 May 2007 23:03:56 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: Komuro CC: tglx@linutronix.de, linux-kernel@vger.kernel.org, mingo@elte.hu Subject: Re: [SMP BUG] [clockevents: i386 drivers patch] introduces irqbalance-does-not-work-properly problem References: <1178202559.3767.21.camel@localhost.localdomain> <20070504233238.ca55c2d1.komurojun-mbn@nifty.com> <1178463619.3793.14.camel@localhost.localdomain> <1178777214.2951.18.camel@ymzhang> <20070510160615.6aa9cef6.akpm@linux-foundation.org> <20070513200444.9d2db4c3.komurojun-mbn@nifty.com> <20070520111409.1793a2f6.komurojun-mbn@nifty.com> In-Reply-To: <20070520111409.1793a2f6.komurojun-mbn@nifty.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.8 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 889 Lines: 32 Komuro wrote: > [clockevents: i386 drivers patch] introduces > irqbalance-does-not-work-properly problem. > > > (The irq is not distributed to two Core > ,most of the irq is distributed to CPU1) > > > Mr. Thomas Gleixner, > any idea to fix this problem? Do you mean userspace irqbalance daemon? It might need to be modified to work properly with a new and unusual event source. Also, for some irq events, it may be good to send most interrupts to one core/CPU. That enhances caching effects, among other benefits. Again, this is highly dependent on the event source, I'm not saying that is the case here. Regards, Jeff - 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/