From owner-cvs-src-old@FreeBSD.ORG  Sat Jun 25 16:36:03 2011
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 64A061065675
	for <cvs-src-old@freebsd.org>; Sat, 25 Jun 2011 16:36:03 +0000 (UTC)
	(envelope-from marcel@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 53F338FC29
	for <cvs-src-old@freebsd.org>; Sat, 25 Jun 2011 16:36:03 +0000 (UTC)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.4/8.14.4) with ESMTP id p5PGa3no038029
	for <cvs-src-old@freebsd.org>; Sat, 25 Jun 2011 16:36:03 GMT
	(envelope-from marcel@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.4/8.14.4/Submit) id p5PGa3me038028
	for cvs-src-old@freebsd.org; Sat, 25 Jun 2011 16:36:03 GMT
	(envelope-from marcel@repoman.freebsd.org)
Message-Id: <201106251636.p5PGa3me038028@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	marcel@repoman.freebsd.org using -f
From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Sat, 25 Jun 2011 16:35:43 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/ia64/ia64 clock.c
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 25 Jun 2011 16:36:03 -0000

marcel      2011-06-25 16:35:43 UTC

  FreeBSD src repository

  Modified files:
    sys/ia64/ia64        clock.c 
  Log:
  SVN rev 223542 on 2011-06-25 16:35:43Z by marcel
  
  Define the minimum fractional period in terms of hz. We know hz is
  a magnitude smaller than itc_freq. A minimum period of 10*hz is
  sufficient precision. As a side-effect, the number of clocks per
  second, when the machine is idle, dropped by more than 50%.
  Be anal and define the maximum period to be at least 4G seconds.
  With a 64-bit counter and an ITC frequency that's expected to be
  always less than 4Ghz, it takes longer than that to wrap around.
  
  Revision  Changes    Path
  1.42      +2 -2      src/sys/ia64/ia64/clock.c