From owner-svn-src-all@FreeBSD.ORG Thu Mar 24 15:03:46 2011 Return-Path: Delivered-To: svn-src-all@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0F537106566C; Thu, 24 Mar 2011 15:03:46 +0000 (UTC) (envelope-from dwmalone@maths.tcd.ie) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [IPv6:2001:770:10:300::86e2:510b]) by mx1.freebsd.org (Postfix) with SMTP id AD5F68FC0A; Thu, 24 Mar 2011 15:03:44 +0000 (UTC) Received: from walton.maths.tcd.ie ([134.226.81.10] helo=walton.maths.tcd.ie) by salmon.maths.tcd.ie with SMTP id ; 24 Mar 2011 15:03:43 +0000 (GMT) Received: from localhost ([127.0.0.1] helo=maths.tcd.ie) by walton.maths.tcd.ie with SMTP id ; 24 Mar 2011 15:03:42 +0000 (GMT) To: Jung-uk Kim In-reply-to: Your message of "Thu, 24 Mar 2011 10:29:46 -0400." <201103241029.57358.jkim@FreeBSD.org> X-Request-Do: Date: Thu, 24 Mar 2011 15:03:42 +0000 From: David Malone Message-ID: <201103241503.aa30875@walton.maths.tcd.ie> Cc: src-committers@FreeBSD.org, John Baldwin , svn-src-all@FreeBSD.org, dwmalone@maths.tcd.ie, Bruce Evans , svn-src-head@FreeBSD.org Subject: Re: svn commit: r219676 - head/sys/x86/x86 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2011 15:03:46 -0000 > If atomic 64-bit read/write is possible and it is absolutely > necessary, it has to be set via machdep.foo_freq, not > kern.timecounter.foo.frequency. A number of people have asked me about adjusting the frequency of other time counters - it would seem to make sense to allow this at the timecounter layer. It also seems possible that people might want the timecounters view of the frequency to be different from other uses of a counter. David.