On Thu, Jan 04, 2018 at 02:56:46PM -0500, Paul Davis wrote: > is this correct? my impression is that KPTI makes user->kernel and > kernel->user switches more expensive tha they used to be, but does not > change the cost of a context switch that stays in the same ring mode. > > so, basically, system calls cost more; context switches stay at about the > same cost. That is what I understood as well. Maybe this will affect systems using very small period sizes, we'll see. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
