On Wed, 2016-05-18 at 20:27 +0800, Wanpeng Li wrote: > From: Wanpeng Li <[email protected]> > > This patch adds steal guest time support to full dynticks CPU > time accounting. After 'commit ff9a9b4c4334 ("sched, time: Switch > VIRT_CPU_ACCOUNTING_GEN to jiffy granularity")', time is jiffy > based sampling even if it's still listened to ring boundaries, so > steal_account_process_tick() is reused to account how much 'ticks' > are steal time after the last accumulation. > > Suggested-by: Rik van Riel <[email protected]> > Cc: Ingo Molnar <[email protected]> > Cc: Peter Zijlstra (Intel) <[email protected]> > Cc: Rik van Riel <[email protected]> > Cc: Thomas Gleixner <[email protected]> > Cc: Frederic Weisbecker <[email protected]> > Cc: Paolo Bonzini <[email protected]> > Cc: Radim <[email protected]> > Signed-off-by: Wanpeng Li <[email protected]>
This also nicely fixes up f9c904b7613b ("sched/cputime:
Fix steal_account_process_tick() to always return jiffies"),
which relies on a bool function returning a certain number
of jiffies :)
Reviewed-by: Rik van Riel <[email protected]>
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