Very interesting! I did this configuration and I can see my core working just in 25%. I would like to try the same with memory.....I am looking for that.
Thanks. 2017-11-02 13:58 GMT-02:00 Ján Tomko <jto...@redhat.com>: > On Thu, Nov 02, 2017 at 03:03:56PM +0200, Volo M. wrote: > >> Hi techs, >> >> Could you please explain or refer me to documentation where I could find a >> description of global_quota schedinfo option. Someone told me that it >> could >> mean a cpu limitation in percents like: >> global_quota : 25000 (does it mean cpu limit % set to 25 ?) >> >> > The _quota values are relative to the _period, both in milliseconds and > refer > to the cumulative CPU time available to all the processes/threads in a > group. > > See the documentation in the kernel: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin > ux.git/tree/Documentation/scheduler/sched-bwc.txt > > So with global_period being set to 100000, a value of 25000 would mean > that all the threads of the virtual machine would be limited to use at > most 25 % of 1 CPU. > > Is it true? >> What other parameters mean in below output? >> I didn't find any related documentation at libvirt.org. >> Could you help me to describe me or refer to some description what below >> schedinfo options mean? Thanks. >> >> > [...] > > >> [root@cpkvm ~]# virsh schedinfo 3 --set global_quota=25 >> >> Scheduler : posix >> >> error: invalid argument: value of 'global_quota' is out of range [1000, >> 18446744073709551] >> >> [1000, 18446744073709551] - what this range mean? >> >> > These are the minimum and maximum values that were accepted by the > kernel at the time when this error message was implemented in libvirt. > > Jan > > _______________________________________________ > libvirt-users mailing list > libvirt-users@redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users >
_______________________________________________ libvirt-users mailing list libvirt-users@redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users
