Re: [Xen-devel] How about use different "max_grant_frames" for different domains?

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.05.16 at 04:54, <dongli.zhang@xxxxxxxxxx> wrote:
> Because the boosting CPU and memory resources on server, Xen users are allowed
> and actually do create lots of vdisk and vnic, e.g., 6 vnic, 20 vdisk and 24
> vcpu (the number of vnic queue is proportional to the number of vcpu assigned
> to guest), and this requires the administrator to increase the value of
> "max_grant_frames" by changing cmdline param or DEFAULT_MAX_NR_GRANT_FRAMES in
> Xen hypervisor.  Currently, all Xen guests share the same "max_grant_frames" 
> in
> Xen hypervisor, that is, if we increase the grant frame because of one VM, all
> other VMs' grant frame limit will increase as well. 
> 
> Therefore, please let me know if using an individual "max_grant_frames" 
> instead
> of a global variable is reasonable? How about if we relocate this variable to
> "struct grant_table" or "struct domain"?

Why not? I think this being global simply was of no concern so far.

Jan


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel