On Wed, 19 Jun 2019, Fenghua Yu wrote:
> C0.2 state in umwait and tpause instructions can be enabled or disabled
> on a processor through IA32_UMWAIT_CONTROL MSR register.
through the IA32CONTROL MSR.
MSR register, IOW: Machine Specific Register register.
>
> Andy Lutomirski suggests to t
C0.2 state in umwait and tpause instructions can be enabled or disabled
on a processor through IA32_UMWAIT_CONTROL MSR register.
By default, C0.2 is enabled and the user wait instructions result in
lower power consumption with slower wakeup time.
But in real time systems which require faster wake
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