Re: 2.6.14-rt13

[Fernando Lopez-Lezcano]

On Fri, 2005-11-18 at 17:25 -0500, Steven Rostedt wrote:
> On Fri, 18 Nov 2005, Lee Revell wrote:
> 
> > On Fri, 2005-11-18 at 23:07 +0100, Ingo Molnar wrote:
> > > * Fernando Lopez-Lezcano <nando@xxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > > Arghhh, at least I take this as a confirmation that the TSCs do drift
> > > > and there is no workaround. It currently makes the -rt/Jack
> > > > combination not very useful, at least in my tests.
> > > >
> > > > Is there a way to resync the TSCs?
> > >
> > > no reasonable way. Does idle=poll make any difference?
> >
> > But JACK itself uses rdtsc() for timing calculations so TSC drift is
> > invariably fatal.
> 
> Can it simply be pinned to a cpu?

Is there a way to know in which cpu a process is running? At least Jack
could ignore timinig issues if the measurement is going to happen in a
different cpu than the one where the original timestamp was collected. 

-- Fernando


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