PerfTop:       0 irqs/sec  kernel: 0.0%  exact:  0.0% lost: 0/0 drop: 0/0 [4000Hz cpu-clock:pppH],  (all, 48 CPUs)
-------------------------------------------------------------------------------


   PerfTop:  124055 irqs/sec  kernel:89.5%  exact:  0.0% lost: 0/0 drop: 0/0 [4000Hz cpu-clock:pppH],  (all, 48 CPUs)
-------------------------------------------------------------------------------

    66.85%  [kernel]       [k] kvm_wait.part.0
     2.53%  [kernel]       [k] __pv_queued_spin_lock_slowpath
     1.75%  [kernel]       [k] _raw_spin_unlock_irqrestore
     1.35%  [kernel]       [k] syscall_enter_from_user_mode
     1.04%  [kernel]       [k] finish_task_switch.isra.0
     1.00%  [kernel]       [k] find_vmap_area
     0.77%  [kernel]       [k] pv_wait_node
     0.71%  [kernel]       [k] avc_lookup
     0.62%  [kernel]       [k] rep_movs_alternative
     0.55%  [kernel]       [k] __fget_light
     0.50%  wrk            [.] http_parser_execute
     0.46%  [kernel]       [k] kvm_kick_cpu
     0.33%  [kernel]       [k] memset_orig
     0.33%  libc.so.6      [.] setsockopt
     0.31%  [kernel]       [k] _copy_from_iter
     0.31%  libc.so.6      [.] epoll_wait
     0.30%  [kernel]       [k] _raw_spin_lock
     0.29%  libc.so.6      [.] fstatat64
     0.28%  [kernel]       [k] __d_lookup_rcu
     0.27%  libc.so.6      [.] epoll_ctl