From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262611AbVFLNvW (ORCPT ); Sun, 12 Jun 2005 09:51:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262613AbVFLNvW (ORCPT ); Sun, 12 Jun 2005 09:51:22 -0400 Received: from mx1.elte.hu ([157.181.1.137]:64728 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S262611AbVFLNtt (ORCPT ); Sun, 12 Jun 2005 09:49:49 -0400 Date: Sun, 12 Jun 2005 15:49:07 +0200 From: Ingo Molnar To: Gene Heskett Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , "Eugeny S. Mints" , Daniel Walker Subject: Re: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00 Message-ID: <20050612134907.GA17467@elte.hu> References: <20050608112801.GA31084@elte.hu> <200506120502.01752.gene.heskett@verizon.net> <20050612103513.GA10808@elte.hu> <200506120940.11698.gene.heskett@verizon.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200506120940.11698.gene.heskett@verizon.net> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Gene Heskett wrote: > I think I see. Do you have a swag as to how much runtime overhead > using softirq's only might cause? [...] should be barely measurable for desktop workloads. For servers it might be significant, depending on the amount of IRQ traffic. For any box doing less than 2000-3000 irqs/sec it should be very small. Ingo