On Tue, Feb 16, 2010 at 03:19:03PM +1100, Benjamin Herrenschmidt wrote: > On Mon, 2010-02-15 at 22:22 -0600, Olof Johansson wrote: > > > > Turns out this one hurts PA6T performance quite a bit, lwsync seems to be > > significantly more expensive there. I see a 25% drop in the microbenchmark > > doing pthread_lock/unlock loops on two cpus. > > > > Taking out the CPU_FTR_LWSYNC will solve it, it's a bit unfortunate since > > the sync->lwsync changes definitely still can, and should, be done. > > So we should use a different feature bit. No biggie. If needed we can > split them more anyways.
Yeah, fine with me. -Olof _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
