6 ms·
You'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 bee
by junon 1y ago
You'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).