> > Hmm, I wasn't sure. Why is it needed? How outdated can the > > result of RDTSC / RDTSCP be? > > > > If I do: > > rdtscll(a) > > ... > > rdtscll(b) > > is it guaranteed that (b > a) ? > > On a single CPU this is always guaranteed. Even on AMD.
It's not guaranteed on Intel at least (but happens to work on P4) -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
