On 8/17/07, Dirk Eibach <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
> > Dirk Eibach wrote:
> > > Hello,
> > >
> > > I'm wondering how long a rt_mutex_acquire is supposed to take on a PPC405
> > > platform. I'm getting times about 50 usec here, which is too much for my
> > > application. Is anything wrong in my kernel/xenomai configuration or is
> > > this time to expected?
> >
> > How do you measure this ? Are you sure the mutex is free when you try to
> > acquire it ?
> >
>
> I prepared a small testcase. It shows about 8.300 ticks, which is about 30
> usec on my platform (266MHz).
Did you try to call ppc_getcounter twice in a raw to measure the
overhead of this function ?
--
Gilles Chanteperdrix
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