Hi All, first of all, thanks for the great book. I have some doubts about some of the counting examples. Namely, those that implement inc_count() as a simple increment operation. If there is nothing to restrain the compiler/linker, they can possibly merge several increments together, or optionally keep the counter value in a register. Of course, this won't happen with counttorture, because of the barrier() in the loop. But I wonder if that barrier() should be part of inc_count() instead. What do you think? Thanks, Imre -- To unsubscribe from this list: send the line "unsubscribe perfbook" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html