openstack team mailing list archive

[Alex Glikson <GLIKSON@xxxxxxxxxx>]

Dear all,

I wonder whether there is an easy way to configure how many cores 
nova-compute is supposed to use (or alternatively refrain from using) for 
provisioning of instances on a certain host, out of the total number of 
cores on that host? E.g., if I know that there are other things running on 
the host, and I want to dedicate some of the CPU capacity to them (such as 
OpenStack services themselves). I am thinking of KVM right now, but the 
general approach is probably platform-independent. Would appreciate your 
insights.

Thanks,
Alex

P.S. trivial solution is to dedicate entire host(s) to those other 
"things", and assume that nova-compute is running on hosts used *only* to 
run VMs (and that nova-compute itself does not need much CPU cycles). but 
I am looking for a more fine-grained approach.

====================================================================================================
Alex Glikson
Manager, Cloud Operating System Technologies, IBM Haifa Research Lab
http://w3.haifa.ibm.com/dept/stt/cloud_sys.html | 
https://www.research.ibm.com/haifa/dept/stt/cloud_sys.shtml 
Email: glikson@xxxxxxxxxx | Phone: +972-4-8281085 | Mobile: 
+972-54-6466667 | Fax: +972-4-8296112