svn commit: r222866 - head/sys/x86/x86

[Jung-uk Kim]

On Tuesday 21 June 2011 09:10 am, John Baldwin wrote:
> On Monday, June 20, 2011 7:41:00 pm Jung-uk Kim wrote:
> > My questions to you:
> >
> > a) Why do we care TSC timecounter when it is not invariant where
> > we *know* it is unusable and set to negative quality?
>
> What if the user knows they will not enable CPU throttling so for
> them the TSC is safe?  In that case, TSC is a more efficient
> timecounter and if the user constrains the system to make the TSC
> safe we should let them use it.

In that case, it must be a UP system, the quality is still 800, and 
TSC value won't be shifted.

My question was specific to SMP cases.  Sorry, I didn't make that 
clear.

Jung-uk Kim