Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267561AbTHKJP4 (ORCPT ); Mon, 11 Aug 2003 05:15:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270823AbTHKJP4 (ORCPT ); Mon, 11 Aug 2003 05:15:56 -0400 Received: from dyn-ctb-210-9-244-185.webone.com.au ([210.9.244.185]:53259 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S267561AbTHKJPy (ORCPT ); Mon, 11 Aug 2003 05:15:54 -0400 Message-ID: <3F375EBD.5030106@cyberone.com.au> Date: Mon, 11 Aug 2003 19:15:41 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3.1) Gecko/20030618 Debian/1.3.1-3 X-Accept-Language: en MIME-Version: 1.0 To: Con Kolivas CC: Martin Schlemmer , linux kernel mailing list Subject: Re: [PATCH]O14int References: <200308090149.25688.kernel@kolivas.org> <200308091904.19222.kernel@kolivas.org> <1060580691.13254.7.camel@workshop.saharacpt.lan> <200308111608.18241.kernel@kolivas.org> In-Reply-To: <200308111608.18241.kernel@kolivas.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1742 Lines: 48 Con Kolivas wrote: >On Mon, 11 Aug 2003 15:44, Martin Schlemmer wrote: > >>On Sat, 2003-08-09 at 11:04, Con Kolivas wrote: >> >>>On Sat, 9 Aug 2003 01:49, Con Kolivas wrote: >>> >>>>More duck tape interactivity tweaks >>>> >>>s/duck/duct >>> >>> >>>>Wli pointed out an error in the nanosecond to jiffy conversion which >>>>may have been causing too easy to migrate tasks on smp (? performance >>>>change). >>>> >>>Looks like I broke SMP build with this. Will fix soon; don't bother >>>trying this on SMP yet. >>> >>Not to be nasty or such, but all these patches have taken >>a very responsive HT box to one that have issues with multiple >>make -j10's running and random jerkyness. >> > >A UP HT box you mean? That shouldn't be capable of running multiple make -j10s >without some noticable effect. Apart from looking impressive, there is no >point in having 30 cpu heavy things running with only 1 and a bit processor >and the machine being smooth as silk; the cpu heavy things will just be >unfairly starved in the interest of appearance (I can do that easily enough). >Please give details if there is a specific issue you think I've broken or >else I wont know about it. > Yeah make -j10s won't be without impact, but I think for a lot of interactive stuff they don't need a lot of CPU, just to get it in a timely manner. And Martin did say it had been responsive. Sounds like in this case your changes are causing the interactive stuff to get less CPU or higher scheduling latency? - 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/