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

[Ingo Molnar <mingo@elte.hu>]

* William Weston <weston@sysex.net> wrote:

> 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 ;-}

great! The SMP box running BurnP6 is another system, right? Could you 
sum up the remaining regressions you are seeing under -RT? (the 
latency.c warning is one, what others are remaining?)

	Ingo