svn commit: r219700 - head/sys/x86/x86

[John Baldwin]

On Thursday, March 17, 2011 5:06:09 pm Jung-uk Kim wrote:
> On Thursday 17 March 2011 04:01 pm, Peter Jeremy wrote:
> > On 2011-Mar-16 16:44:08 +0000, Jung-uk Kim <jkim at FreeBSD.org> wrote:
> > >Log:
> > >  Revert r219676.
> >
> > Thanks also.  For extra kudos, how about adding a similar function
> > to allow the HPET frequency to be over-ridden.  That is currently
> > the only timecounter that does not allow the user to compensate for
> > incorrect hardware frequencies.
> 
> I really hate the idea of adjusting timecounter frequency from 
> userland.  I guess "use ntpd(8)" is not a good answer for some 
> people. :-(

Actually, that doesn't work well if your timecounter frequency is off by a 
lot.  Having the timecounter frequency accurate improves the accuracy of 
things like ntpd and ptpd.

-- 
John Baldwin