Hi, > On Sun, 2016-05-29 at 22:03 +1000, Anton Blanchard wrote: > > From: Anton Blanchard <an...@samba.org> > > > > In setup_sigcontext(), we set current->thread.vrsave then use it > > straight after. Since current is hidden from the compiler via inline > > assembly, it cannot optimise this and we end up with a load hit > > store. > > Is setup_sigcontext() really a fast path we need to optimise?
setup_sigcontext() is called for every signal we deliver. I'd like userspace to use less signals, but we still stumble across workloads with quite heavy use of them. Anton _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
