From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 1 Aug 2001 15:34:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 1 Aug 2001 15:34:02 -0400 Received: from [47.129.117.131] ([47.129.117.131]:32652 "HELO pcard0ks.ca.nortel.com") by vger.kernel.org with SMTP id ; Wed, 1 Aug 2001 15:34:00 -0400 Message-ID: <3B6859B2.F1E2C95B@nortelnetworks.com> Date: Wed, 01 Aug 2001 15:34:10 -0400 From: Chris Friesen X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.3-custom i686) X-Accept-Language: en MIME-Version: 1.0 To: george anzinger , linux-kernel@vger.kernel.org Subject: Re: No 100 HZ timer ! In-Reply-To: <3B683AC4.E0F2BF9E@mvista.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org george anzinger wrote: > The testing I have done seems to indicate a lower overhead on a lightly > loaded system, about the same overhead with some load, and much more > overhead with a heavy load. To me this seems like the wrong thing to What about something that tries to get the best of both worlds? How about a tickless system that has a max frequency for how often it will schedule? This would give the tickless advantage for big iron running many lightly loaded virtual instances, but have some kind of cap on the overhead under heavy load. Does this sound feasable? -- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com