Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24

William Weston
2005-06-29T09:16:29Z

On Wed, 29 Jun 2005, Ingo Molnar wrote:

> > [...] but i think i'm going to revert that, it's causing too many
> > problems all around.
>
> reverted it and this enabled the removal of the extra ->disable() you
> noticed - this should further speed up the IOAPIC code. These changes
> are in the -50-34 kernel i just uploaded.

-50-34 fixed the wakeup latency regression I was seeing on my Athlon box
with -50-33, and seems a bit more responsive than -50-25. Max wakeup
latency is back down to 14us (from 39us), even while running JACK (xrun
free) and two instances of burnK7. Overall system response is probably
the best I've seen with the RT kernels ;-}

--ww