On 2025-10-13 13:32, Andy Lutomirski wrote: > > The global timestamp would just be some field in the vvar area, which > we have plenty of anyway. > > But I agree, accelerating getcpu is pointless. In any case, anything > that historically thought it really really wanted accelerated getcpu > can, and probably does, use rseq these days. >
Indeed. And with RDPID it is fast enough that the bulk of the cost is probably
in the vdso call.
-hpa
