From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jes Sorensen Date: Thu, 29 Jun 2006 10:48:27 +0000 Subject: Re: [PATCH] ia64: change usermode HZ to 250 Message-Id: <44A3AFFB.2000203@sgi.com> List-Id: References: <617E1C2C70743745A92448908E030B2A27FC5F@scsmsx411.amr.corp.intel.com> <1151578928.23785.0.camel@localhost.localdomain> In-Reply-To: <1151578928.23785.0.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Alan Cox Cc: "Luck, Tony" , John Daiker , John Hawkes , Arjan van de Ven , Tony Luck , Andrew Morton , linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, Jack Steiner , Dan Higgins , Jeremy Higdon Alan Cox wrote: > Ar Iau, 2006-06-29 am 05:37 -0400, ysgrifennodd Jes Sorensen: >> You have my vote for that one. Anything else is just going to cause >> those broken userapps to continue doing the wrong thing. We should >> really do this on all archs though. > > No need, all current mainstream architectures expose a constant user HZ. But you are still going to have the issue where someone installs their own kernel and apps will break because of this? Getting the distros to stop publishing a constant HZ is probably the right solution, but more difficult :( Cheers, Jes From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932682AbWF2Ksu (ORCPT ); Thu, 29 Jun 2006 06:48:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932195AbWF2Kst (ORCPT ); Thu, 29 Jun 2006 06:48:49 -0400 Received: from omx1-ext.sgi.com ([192.48.179.11]:61660 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S932556AbWF2Kss (ORCPT ); Thu, 29 Jun 2006 06:48:48 -0400 Message-ID: <44A3AFFB.2000203@sgi.com> Date: Thu, 29 Jun 2006 12:48:27 +0200 From: Jes Sorensen User-Agent: Thunderbird 1.5 (X11/20060317) MIME-Version: 1.0 To: Alan Cox CC: "Luck, Tony" , John Daiker , John Hawkes , Arjan van de Ven , Tony Luck , Andrew Morton , linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, Jack Steiner , Dan Higgins , Jeremy Higdon Subject: Re: [PATCH] ia64: change usermode HZ to 250 References: <617E1C2C70743745A92448908E030B2A27FC5F@scsmsx411.amr.corp.intel.com> <1151578928.23785.0.camel@localhost.localdomain> In-Reply-To: <1151578928.23785.0.camel@localhost.localdomain> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: > Ar Iau, 2006-06-29 am 05:37 -0400, ysgrifennodd Jes Sorensen: >> You have my vote for that one. Anything else is just going to cause >> those broken userapps to continue doing the wrong thing. We should >> really do this on all archs though. > > No need, all current mainstream architectures expose a constant user HZ. But you are still going to have the issue where someone installs their own kernel and apps will break because of this? Getting the distros to stop publishing a constant HZ is probably the right solution, but more difficult :( Cheers, Jes