Any chance you can re-test with a more recent kernel on the hypervisor host? If the spin-lock was coming from user-space, I would expect futex_wait_setup and futex_wake to be much higher.
Any chance you can re-test with a more recent kernel on the hypervisor host? If the spin-lock was coming from user-space, I would expect futex_wait_setup and futex_wake to be much higher.