Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261931AbUC0XzS (ORCPT ); Sat, 27 Mar 2004 18:55:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261907AbUC0XzS (ORCPT ); Sat, 27 Mar 2004 18:55:18 -0500 Received: from alt.aurema.com ([203.217.18.57]:46248 "EHLO smtp.sw.oz.au") by vger.kernel.org with ESMTP id S261931AbUC0XzO (ORCPT ); Sat, 27 Mar 2004 18:55:14 -0500 Message-ID: <406613BC.90602@aurema.com> Date: Sun, 28 Mar 2004 09:52:28 +1000 From: Peter Williams Organization: Aurema Pty Ltd User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jamie Lokier CC: Micha Feigin , lkml Subject: Re: finding out the value of HZ from userspace References: <20040313193852.GC12292@devserv.devel.redhat.com> <40564A22.5000504@aurema.com> <20040316063331.GB23988@devserv.devel.redhat.com> <40578FDB.9060000@aurema.com> <20040320102241.GK2803@devserv.devel.redhat.com> <405C2AC0.70605@stesmi.com> <20040322223456.GB2549@luna.mooo.com> <405F70F6.5050605@aurema.com> <20040325174053.GB11236@mail.shareable.org> <406369A1.7090905@aurema.com> <20040327133133.GB21884@mail.shareable.org> In-Reply-To: <20040327133133.GB21884@mail.shareable.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: 1038 Lines: 28 Jamie Lokier wrote: > Peter Williams wrote: > >>Making HZ == USER_HZ would also solve the problem. > > > They were equal once. > > Making them equal now would reintroduce the problem that USER_HZ was > created to resolve: some userspace programs hard-code the value, so it > cannot be changed in interfaces used by those programs. That was the wrong solution to that particular problem. The programs should have been fixed rather than the kernel being maimed to accommodate their shortcomings. Peter -- Dr Peter Williams, Chief Scientist peterw@aurema.com Aurema Pty Limited Tel:+61 2 9698 2322 PO Box 305, Strawberry Hills NSW 2012, Australia Fax:+61 2 9699 9174 79 Myrtle Street, Chippendale NSW 2008, Australia http://www.aurema.com - 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/