On 03/25/2015 01:48 AM, Meng Xu wrote: > ​Exactly! I will do some measurement on the overhead in #2 before I really > try to do it. Since #1 is fairly easy, I will first implement #1 and see > how much gap it remains to achieve the bare-metal performance.
Interface-wise: I'm wondering if at the Xen or libxl level we really need to have a whole new set of hypercalls, at least to implement #1. Would it make sense for certain schedulers to automatically switch to "no accounting" mode when the hard_affinity of a vcpu is limited to one vcpu, and no other vcpus are also limited to that one vcpu? -George _______________________________________________ Xen-devel mailing list [email protected] http://lists.xen.org/xen-devel
