KVM process :
  29.36%  [kernel]                 [k] read_tsc
  11.49%  [kernel]                 [k] ktime_get
   8.65%  [kernel]                 [k] kvm_arch_vcpu_runnable
   8.00%  [kernel]                 [k] vmx_interrupt_allowed
   7.51%  [kernel]                 [k] apic_update_ppr
   6.70%  [kernel]                 [k] kvm_apic_accept_pic_intr
   4.02%  [kernel]                 [k] kvm_vcpu_check_block
   3.93%  [kernel]                 [k] kvm_cpu_has_interrupt
   3.91%  [kernel]                 [k] kvm_apic_has_interrupt
   3.89%  [kernel]                 [k] kvm_vcpu_block
   3.36%  [kernel]                 [k] apic_has_pending_timer
   3.17%  [kernel]                 [k] kvm_cpu_has_extint
   1.60%  [kernel]                 [k] kvm_cpu_has_pending_timer
   1.48%  [kernel]                 [k] single_task_running
   0.29%  [kernel]                 [k] vmx_vcpu_run
   0.11%  [kernel]                 [k] kvm_arch_vcpu_ioctl_run
   0.11%  [kernel]                 [k] update_blocked_averages
   0.07%  libpthread-2.19.so       [.] __lll_unlock_elision
   0.07%  libpthread-2.19.so       [.] __lll_lock_elision
vhost-net process :
   9.88%  [kernel]          [k] vhost_get_vq_desc
   9.09%  [kernel]          [k] copy_user_enhanced_fast_string
   4.35%  [kernel]          [k] vhost_signal
   3.91%  [kernel]          [k] handle_rx
   3.54%  [kernel]          [k] __apic_accept_irq
   3.47%  [kernel]          [k] gup_pte_range
   2.86%  [kernel]          [k] __vhost_add_used_n
   2.64%  [kernel]          [k] _raw_spin_lock_irqsave
   2.64%  [kernel]          [k] copy_to_iter
   2.55%  [kernel]          [k] vhost_worker
   2.11%  [kernel]          [k] __free_page_frag
   2.01%  [kernel]          [k] kvm_irq_delivery_to_apic_fast
   1.99%  [kernel]          [k] tun_do_read
   1.96%  [kernel]          [k] _raw_spin_unlock_irqrestore
   1.90%  [kernel]          [k] translate_desc.isra.9
   1.71%  [kernel]          [k] native_write_msr_safe
   1.54%  [kernel]          [k] skb_release_data
   1.37%  [kernel]          [k] _raw_spin_lock_irq
   1.35%  [kernel]          [k] vhost_add_used_n
   1.31%  [kernel]          [k] __srcu_read_lock
   1.28%  [kernel]          [k] __schedule
   1.28%  [kernel]          [k] tun_recvmsg
   1.02%  [kernel]          [k] handle_tx
   1.00%  [kernel]          [k] iov_iter_advance
   0.92%  [kernel]          [k] _raw_spin_lock