Thanks a lot for your explanation! So, if I understand correctly, you say, it is a kernel-issue, because the standard-kernel does not include these counters for x86 and the Ubuntu-team obviously has done some special „hack“ to provide those counters also for x86.
Although I’m a programmer, I have no idea whatsoever of the linux kernel. Could you please point me to these modules you mentioned for ia64/powerpc/s390x that have the counting and the module for x86 that doesn’t? Then I can try to find out what the Ubuntu guys had done there. If I manage to get to this point, I will get in contact with the Debian kernel team. Kind regards, Tom ________________________________________________________ Am 05.04.2021 um 10:49 schrieb Michael Tokarev <m...@tls.msk.ru>: Control: tag -1 + moreinfo Control: severity -1 wishlist 04.04.2021 18:23, Thomas Scholz wrote: > Package: qemu-system-x86 > Version: 1:5.2+dfsg-9 > Severity: normal > Dear Maintainer, > * What led up to the situation? > I have two hosts, running several KVM/qemu guests. The first host runs on > Ubuntu 20.10 and shows > under /proc/stat in the 9th column the values for the CPU-usage of the guests. > The other host (=this host) under Debian testing does not show these values, > rather the guest's > CPU-usage is included in the system-stat (3rd column). I see what you're talking about. I've no idea what does ubuntu do to provide this information. In the stock linux kernel, as far as I can see, there's no counting for this info for x86 architecture, - it is only counted for ia64, powerpc and s390x architectures. I'm not an expert in this area, maybe you can find out what ubuntu does here and ask debian kernel guys to include the same in debian. As far as I can see, there's nothing qemu can do about it as long as kernel itself does not provide a way to update this information. /mjt
