On Tue, Oct 20, 2009 at 2:21 PM, Avi Kivity <avi@xxxxxxxxxx> wrote: > On 10/19/2009 06:46 PM, Ryota Ozaki wrote: >> >> Hi, >> >> I have a question on cputime accounting of a guest. CPU time of a >> guest is always >> accounted as 'user' time of cpustat even if nice value of the guest is >> higher than 0. >> Is there a reason to do so? I think the cpu time of the guest should >> be accounted >> into 'nice' as same as a normal process. Am I wrong? >> > > Hm, guest time is accounted separately, and added to user time in /proc (so > tools that don't know about guest time can read it as user time). Yes, but I think always added to user time without regard to nice value is a problem. I want to fix it because user time is an account for processes that have nice == 0. > > Looks like we need to add a separate guest_nice, or get rid of guest time > altogether. Hmm, guest time is already exposed via /proc/stat so adding guest_nice is better if fix here? I don't know anyone utilize 'guest' value though. ozaki-r > > -- > I have a truly marvellous patch that fixes the bug which this > signature is too narrow to contain. > > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
