Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758858AbXIXV1h (ORCPT ); Mon, 24 Sep 2007 17:27:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754854AbXIXV13 (ORCPT ); Mon, 24 Sep 2007 17:27:29 -0400 Received: from py-out-1112.google.com ([64.233.166.180]:10364 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751805AbXIXV12 (ORCPT ); Mon, 24 Sep 2007 17:27:28 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=RcPbxrcjSe+/54e+Ehhuc8D9aubzHgbIZcdwFiCLw8nVVM3GLCmik5uWRxUWw7F/NQzuZCJHHirgwVvxiZULW2BTUsdZ1y5kHLGvxPHafpQK60i5sSDHfjE0lNjCeW6AjLMYI1Wpe43Ghtz1uWru21LmMRxVfmfeRfhHUgcT0hk= Message-ID: <88dfed9d0709241427v329aeed9jfbc298666ac483c8@mail.gmail.com> Date: Tue, 25 Sep 2007 05:27:27 +0800 From: hufey To: "Jaswinder Singh" Subject: Re: realtime preemption performance difference Cc: linux-kernel@vger.kernel.org, mingo@elte.hu In-Reply-To: <3f9a31f40709240448h4a9e8337t437328b5c675ecd5@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <3f9a31f40709240448h4a9e8337t437328b5c675ecd5@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1159 Lines: 35 On 9/24/07, Jaswinder Singh wrote: > Hi all, > > I want to check performance difference by using realtime preemption patch : > > http://www.kernel.org/pub/linux/kernel/projects/rt/ > > Please let me know from where I can download samples to test realtime > preemption performance difference. > As far as I know, some embedded linux vendors such as MontaVista provide kernel patch to export some interfaces to measure realtime performance. > Can someone please share performance numbers for your hardware:- > > 1. Interrupt latency > 2. Task switching time > 3. hard-realtime scheduling latency > > Thank you, > > Jaswinder Singh. > - > 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/ > - 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/