kvm & dyntick

Avi Kivity
2007-01-11T16:08:38Z

It occurs to me that kvm could benefit greatly from dyntick:

dyntick-enabled host:
- generate virtual interrupts at whatever HZ the guest programs its
timers, be it 100, 250, 1000 or whatever
- avoid expensive vmexits due to useless timer interrupts

dyntick-enabled guest:
- reduce the load on the host when the guest is idling
(currently an idle guest consumes a few percent cpu)

What are the current plans wrt dyntick? Is it planned for 2.6.21?

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