RE: Dual core Athlons and unsynced TSCs

Steven Rostedt
2006-01-14T02:15:28Z

On Fri, 13 Jan 2006, john stultz wrote:

> On Fri, 2006-01-13 at 20:43 -0500, Steven Rostedt wrote:
> > On Fri, 13 Jan 2006, john stultz wrote:
> >
> > >
> > > This is as I understand it:
> > >
> > > With 2.6.15 on x86-64:
> > > If available, alternate timesources (HPET, ACPI PM) will be used if
> > > available on AMD SMP systems. (clock= is i386 only)
> >
> > Hmm, should I boot without the clock= to prove this?
>
> Feel free. That or grep the x86-64 time.c code.
>
> Look for:
> time.c: Using PM based timekeeping.
>
> To verify the timesource selection.

I'm too busy trying to install linux on my powerbook to look at code at
the moment :-)

I just rebooted and ran the test on 2.6.15 without the clock= option and
it passed my test. I'll wait a while and run it again to see if I get any
other drift too prove it more.

-- Steve