[LAU] Ubuntu Hard real time kernel (2.6.24-21) poor performance.

[Fernando Lopez-Lezcano]

On Sat, 2008-10-25 at 02:24 +0200, Joern Nettingsmeier wrote:
> Fernando Lopez-Lezcano wrote:
> > On Fri, 2008-10-24 at 18:20 +0200, Esben Stien wrote:
> >> I can not understand how 2.6.26 performance can be good, given the
> >> recent regression I read about: 
> >>
> >> http://kerneltrap.org/Linux/Removing_the_Big_Kernel_Lock
> >>
> >> Can someone shed light on this?. 
> > 
> > Something must have changed/improved since then. 
> > 
> > Pretty good results here running 2.6.26.7 + 2.6.26.6-rt11 (except that
> > USB midi seems to be broken... arghh...)
> 
> good to hear that. does the rt patch apply cleanly (since it's for the
> previous release), or does it require some massaging?

It applies cleanly as far as I remember (it is in the testing repos for
Planet CCRMA fc9/8). Previous kernels of the same lineage have frozen on
me, I guess I have not tested this one enough...

But the midi thing is a big big problem if you want to use midi - I
do :-)

-- Fernando