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* kvm & dyntick
@ 2007-01-11 16:08 Avi Kivity
  2007-01-12  5:34 ` Rik van Riel
  2007-01-12  6:20 ` Ingo Molnar
  0 siblings, 2 replies; 9+ messages in thread
From: Avi Kivity @ 2007-01-11 16:08 UTC (permalink / raw)
  To: Ingo Molnar; +Cc: kvm-devel, linux-kernel

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?

-- 
error compiling committee.c: too many arguments to function


^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2007-01-14  8:55 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-01-11 16:08 kvm & dyntick Avi Kivity
2007-01-12  5:34 ` Rik van Riel
2007-01-12  6:20 ` Ingo Molnar
2007-01-12 10:19   ` Ingo Molnar
2007-01-12 17:04     ` Avi Kivity
2007-01-14  8:39       ` Ingo Molnar
2007-01-12 23:25     ` [kvm-devel] " Dor Laor
2007-01-12 23:39       ` Thomas Gleixner
2007-01-14  8:51       ` Ingo Molnar

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