Messages in this thread | | | Subject | Re: [PATCH v2 4/6] KVM-GST: KVM Steal time registration | From | Glauber Costa <> | Date | Tue, 01 Feb 2011 15:00:41 -0200 |
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> > See, that! is the problem, don't round up like that.
Yeah, I was using usecs_to_cputime(), believing this was the standard interface. By the way, one of the things that also led to better results were just forcing it to 0 every time we had steal == 1 in the end. But *that* was a real hack =)
> What you can do is: steal_ticks = steal_time_clock() / TICK_NSEC, or > simply keep a steal time delta and every time it overflows > cputime_one_jiffy insert a steal-time tick.
What do you think about keeping accounting in msec/usec resolution and (thus allowing us to compute half a tick to user/system, other half to steal time) only change it to cputime in the last minute?
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