4 ms·
> It's also not as accurate as a the High Precision timer (HPET) This hasn't been true for about 10 years.
by bonzini 1y ago
> It's also not as accurate as a the High Precision timer (HPET)
This hasn't been true for about 10 years.
- junon 1y agoYou're right, I was thinking about the interrupt precision over the default APIC timer. My point about it being disabled on some platforms has historically been true, however.
- bonzini 1y agoI think you're confusing this and the kernel's blacklisting of the TSC for timekeeping if it is not synchronized across CPUs; but while there's a knob to block userspace's access to the TSC, I am not sure that has been used anywhere except for debugging reasons (e.g. record/replay).