From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denys Fedoryschenko Subject: Re: [BUG #12364] Re: HTB - very bad precision? HFSC works =?iso-8859-1?q?fine!=092=2E6=2E28?= Date: Mon, 12 Jan 2009 22:01:19 +0200 Message-ID: <200901122201.19616.denys@visp.net.lb> References: <1935.87.196.72.187.1231371721.squirrel@webmail.decimal.pt> <200901122038.05199.denys@visp.net.lb> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: Patrick McHardy , netdev , bugme-daemon@bugzilla.kernel.org To: Jesper Dangaard Brouer Return-path: Received: from hosting.visp.net.lb ([194.146.153.11]:42676 "EHLO hosting.visp.net.lb" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754627AbZALUBd (ORCPT ); Mon, 12 Jan 2009 15:01:33 -0500 In-Reply-To: Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: They are enabled Router-Dora /config # zcat /proc/config.gz |grep HIGH_RES CONFIG_HIGH_RES_TIMERS=y Router-Dora /config # zcat /proc/config.gz |grep HZ CONFIG_NO_HZ=y On Monday 12 January 2009 21:58:22 Jesper Dangaard Brouer wrote: > On Mon, 12 Jan 2009, Denys Fedoryschenko wrote: > > End of my story: > > 1000HZ solved issue. HTB and HFSC keeps rate MUCH better. > > Both looks like perform similar, but because it is real load scenario, i > > cannot measure which one is better. > > If that was you problem, you should consider enabling > CONFIG_HIGH_RES_TIMERS (and possibly CONFIG_NO_HZ). > > Patrick McHardy has at some point made the sched code independent of the > HZ value, but only when the HIGH_RES_TIMERS are enabled. > > Cheers, > Jesper Brouer > > -- > ------------------------------------------------------------------- > MSc. Master of Computer Science > Dept. of Computer Science, University of Copenhagen > Author of http://www.adsl-optimizer.dk > ------------------------------------------------------------------- > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html