On Thu, 2009-07-02 at 08:13 +1000, Benjamin Herrenschmidt wrote: > On Tue, 2009-06-30 at 05:55 -0700, Felix Radensky wrote: > > Hi, > > > > Preemption is disabled on the vast majority of powerpc > > targets. Are there any known problems in this area ? > > I'd like to enable CONFIG_PREEMPT_VOLUNTARY on > > AMCC 405EX target, to increase application responsiveness. > > Is it a bad idea ? > > In theory it should work, but as you may have noticed, it's generally > disabled and thus not very well tested. > > It would be a good idea for us, some of the core devs, to turn that on > in our usual test configs in fact.
FWIW, on my PowerBook I've been running with CONFIG_PREEMPT_VOLUNTARY enabled for a long time (more than a year). No problems so far, and it definitely seems to help a lot for interactivity. -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev