On 2020/06/21 18:46, Paul Irofti wrote: > > > În 21 iunie 2020 16:30:43 EEST, Theo de Raadt <dera...@openbsd.org> a scris: > >Paul Irofti <p...@irofti.net> wrote: > > > >> If you change the name to rdtsc_ordered(), OK. > > > >That is a weaker name. > > > >Ordered in what way, at what level; ordered against what? > > > >This is using a specific pipeline ordering known as lfence. > >So it might as well say lfence. That is the technical name for > >that type of ordering. Being vague is unhelpful. > > > Ok then, if you think that's best. >
Any idea why in https://www.intel.com/content/www/us/en/embedded/training/ia-32-ia-64-benchmark-code-execution-paper.html they are using cpuid to serialize access instead of lfence?
