Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750874AbWEVOvG (ORCPT ); Mon, 22 May 2006 10:51:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750891AbWEVOvG (ORCPT ); Mon, 22 May 2006 10:51:06 -0400 Received: from mx1.suse.de ([195.135.220.2]:3756 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750874AbWEVOvF (ORCPT ); Mon, 22 May 2006 10:51:05 -0400 From: Andi Kleen To: "Brown, Len" Subject: Re: APIC error on CPUx Date: Mon, 22 May 2006 16:50:59 +0200 User-Agent: KMail/1.9.1 Cc: "Jan Engelhardt" , "Vladimir Dvorak" , linux-kernel@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200605221651.00063.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 556 Lines: 16 > "noapic" is a perfectly reasonable thing to use if you don't > have a lot of interrupt sources and there is no more sharing > in PIC mode than IOAPIC mode. It makes interrupt handling much slower. The PIC accesses can be > 50% of the interrupt handling cost. Of course that tends to hide some bugs. -Andi - 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/