3:36 a.m.
On Tue, May 19, 2020 at 06:50:00PM +0200, Giovanni Gherdovich wrote:
On Mon, 2020-05-18 at 15:00 +0200, Peter Zijlstra wrote:
> So far the easiest fix I've come up with is simply limiting
all this to
> 64bit.. like who cares about 32bit anyway :-))))
Agreed. I don't think APERFMPERF is supported on i386 anyways, and that would
be a requirement for frequency invariance. In any case, support for i386 is
"let's not break it".
Well, i386 is mostly a case of people running 32bit kernels on 64bit
capable hardware for $REASON. Which is stupid anyway. There is very few
actual 32bit chips left I think.
But I do think the very last 32bit CPUs did in fact support APERF/MPERF,
but meh.