An over-committed guest with more vCPUs than pCPUs has a heavy overload
in the two spin_on_owner. This blames on the lock holder preemption
issue.
Kernel has an interface bool vcpu_is_preempted(int cpu) to see if a vCPU
is currently running or not. So break the spin loops on true condition.
An over-committed guest with more vCPUs than pCPUs has a heavy overload
in the two spin_on_owner. This blames on the lock holder preemption
issue.
Kernel has an interface bool vcpu_is_preempted(int cpu) to see if a vCPU
is currently running or not. So break the spin loops on true condition.
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