From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932462AbVHaHpB (ORCPT ); Wed, 31 Aug 2005 03:45:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932464AbVHaHpB (ORCPT ); Wed, 31 Aug 2005 03:45:01 -0400 Received: from ylpvm15-ext.prodigy.net ([207.115.57.46]:20150 "EHLO ylpvm15.prodigy.net") by vger.kernel.org with ESMTP id S932462AbVHaHpA (ORCPT ); Wed, 31 Aug 2005 03:45:00 -0400 X-ORBL: [67.117.73.34] Date: Wed, 31 Aug 2005 10:44:19 +0300 From: Tony Lindgren To: Alistair John Strachan Cc: Con Kolivas , "Theodore Ts'o" , Christopher Friesen , Lee Revell , linux-kernel , Srivatsa Vaddagiri , Thomas Renninger Subject: Re: Dynamic tick for 2.6.14 - what's the plan? Message-ID: <20050831074419.GA1029@atomide.com> References: <1125354385.4598.79.camel@mindpipe> <200508301348.59357.kernel@kolivas.org> <20050830123132.GH6055@atomide.com> <200508301701.49228.s0348365@sms.ed.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200508301701.49228.s0348365@sms.ed.ac.uk> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Alistair John Strachan [050830 18:57]: > On Tuesday 30 August 2005 13:31, Tony Lindgren wrote: > [snip] > > > > > > Same issue, it's waiting on dynticks before being reworked. > > > > Also one more minor issue; Dyntick can cause slow boots with dyntick > > enabled from boot because the there's not much in the timer queue > > until init. > > > > This probably does not show up much on x86 though because of the > > short hardware timers. > > You could disable it until jiffies >= 0; this covers the boot criteria and > still allows for moderate savings post boot (though maybe on embedded systems > the delay is too long?). Yeah, that's true. Or just enable it from an init script via sysfs. Tony