From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759370AbXIZNbr (ORCPT ); Wed, 26 Sep 2007 09:31:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756538AbXIZNb3 (ORCPT ); Wed, 26 Sep 2007 09:31:29 -0400 Received: from E23SMTP02.au.ibm.com ([202.81.18.163]:52244 "EHLO e23smtp02.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751436AbXIZNb2 (ORCPT ); Wed, 26 Sep 2007 09:31:28 -0400 Date: Wed, 26 Sep 2007 19:00:37 +0530 To: Jaswinder Singh Cc: linux-kernel@vger.kernel.org, mingo@elte.hu Subject: Re: realtime preemption performance difference Message-ID: <20070926133037.GA22760@in.ibm.com> Reply-To: Ankita Garg References: <3f9a31f40709240448h4a9e8337t437328b5c675ecd5@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3f9a31f40709240448h4a9e8337t437328b5c675ecd5@mail.gmail.com> User-Agent: Mutt/1.5.13 (2006-08-11) From: ankita@in.ibm.com (Ankita Garg) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Jaswinder, On Mon, Sep 24, 2007 at 05:18:01PM +0530, 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. > You can obtain several -rt testcases from the RT wiki: http://rt.wiki.kernel.org/index.php/Main_Page Here we have testcases/benchmarks for measuring scheduling latencies, priority preemption, signaling latencies, etc and other important information on the patchset. Hope this helps! > 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/ > -- Regards, Ankita Garg (ankita@in.ibm.com) Linux Technology Center IBM India Systems & Technology Labs, Bangalore, India