Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750954AbWBXIDh (ORCPT ); Fri, 24 Feb 2006 03:03:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932076AbWBXIDh (ORCPT ); Fri, 24 Feb 2006 03:03:37 -0500 Received: from linux01.gwdg.de ([134.76.13.21]:22229 "EHLO linux01.gwdg.de") by vger.kernel.org with ESMTP id S1750954AbWBXIDg (ORCPT ); Fri, 24 Feb 2006 03:03:36 -0500 Date: Fri, 24 Feb 2006 09:03:28 +0100 (MET) From: Jan Engelhardt To: Ingo Molnar cc: Nish Aravamudan , Gautam H Thaker , linux-kernel@vger.kernel.org Subject: Re: ~5x greater CPU load for a networked application when using 2.6.15-rt15-smp vs. 2.6.12-1.1390_FC4 In-Reply-To: <20060223210844.GA26701@elte.hu> Message-ID: References: <43FE134C.6070600@atl.lmco.com> <20060223205851.GA24321@elte.hu> <29495f1d0602231306o55d759d5v9600b070a4b485e3@mail.gmail.com> <20060223210844.GA26701@elte.hu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 728 Lines: 18 >> Would it make more sense to compare 2.6.15 and 2.6.15-rt17, as opposed >> to 2.6.12-1.1390_FC4 and 2.6.15-rt17? Seems like the closer the two >> kernels are, the easier it will be to isolate the differences. > >good point. I'd expect there to be similar 'top' output, but still worth >doing for comparable results. > I have seen this before too (with earlier -rt's), when MPlayer jumped from 1.8% to about 10%. Maybe because it's using the rtc at 1024 Hz? Jan Engelhardt -- - 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/