[root@b1 ~]# perf stat -e 'kvm:*' -a sleep 2s

 Performance counter stats for 'system wide':

            80,623      kvm:kvm_entry                                                [100.00%]
                 0      kvm:kvm_hypercall                                            [100.00%]
                 0      kvm:kvm_hv_hypercall                                         [100.00%]
             7,888      kvm:kvm_pio                                                  [100.00%]
                 0      kvm:kvm_cpuid                                                [100.00%]
            35,085      kvm:kvm_apic                                                 [100.00%]
            82,352      kvm:kvm_exit                                                 [100.00%]
            22,688      kvm:kvm_inj_virq                                             [100.00%]
                 0      kvm:kvm_inj_exception                                        [100.00%]
                 5      kvm:kvm_page_fault                                           [100.00%]
                 0      kvm:kvm_msr                                                  [100.00%]
             3,319      kvm:kvm_cr                                                   [100.00%]
                 9      kvm:kvm_pic_set_irq                                          [100.00%]
             5,418      kvm:kvm_apic_ipi                                             [100.00%]
            23,218      kvm:kvm_apic_accept_irq                                      [100.00%]
            23,319      kvm:kvm_eoi                                                  [100.00%]
            23,131      kvm:kvm_pv_eoi                                               [100.00%]
                 0      kvm:kvm_nested_vmrun                                         [100.00%]
                 0      kvm:kvm_nested_intercepts                                    [100.00%]
                 0      kvm:kvm_nested_vmexit                                        [100.00%]
                 0      kvm:kvm_nested_vmexit_inject                                    [100.00%]
                 0      kvm:kvm_nested_intr_vmexit                                    [100.00%]
                 0      kvm:kvm_invlpga                                              [100.00%]
                 0      kvm:kvm_skinit                                               [100.00%]
            46,530      kvm:kvm_emulate_insn                                         [100.00%]
             8,476      kvm:vcpu_match_mmio                                          [100.00%]
                 0      kvm:kvm_write_tsc_offset                                     [100.00%]
                 0      kvm:kvm_update_master_clock                                    [100.00%]
                 0      kvm:kvm_track_tsc                                            [100.00%]
                 0      kvm:kvm_ple_window                                           [100.00%]
             3,811      kvm:kvm_userspace_exit                                       [100.00%]
                 9      kvm:kvm_set_irq                                              [100.00%]
                 9      kvm:kvm_ioapic_set_irq                                       [100.00%]
                 0      kvm:kvm_ioapic_delayed_eoi_inj                                    [100.00%]
             4,375      kvm:kvm_msi_set_irq                                          [100.00%]
                 2      kvm:kvm_ack_irq                                              [100.00%]
            52,741      kvm:kvm_mmio                                                 [100.00%]
            12,157      kvm:kvm_fpu                                                  [100.00%]
                 0      kvm:kvm_age_page                                             [100.00%]
                 0      kvm:kvm_try_async_get_page                                    [100.00%]
                 0      kvm:kvm_async_pf_doublefault                                    [100.00%]
                 0      kvm:kvm_async_pf_not_present                                    [100.00%]
                 0      kvm:kvm_async_pf_ready                                       [100.00%]
                 0      kvm:kvm_async_pf_completed                                   

       2.001049568 seconds time elapsed

[root@b1 ~]# 
[root@b1 ~]# 
[root@b1 ~]# 
[root@b1 ~]# perf stat -e 'kvm:*' -a sleep 2s

 Performance counter stats for 'system wide':

           481,650      kvm:kvm_entry                                                [100.00%]
                 0      kvm:kvm_hypercall                                            [100.00%]
                 0      kvm:kvm_hv_hypercall                                         [100.00%]
             7,908      kvm:kvm_pio                                                  [100.00%]
                 0      kvm:kvm_cpuid                                                [100.00%]
            19,147      kvm:kvm_apic                                                 [100.00%]
           493,824      kvm:kvm_exit                                                 [100.00%]
            14,322      kvm:kvm_inj_virq                                             [100.00%]
                 0      kvm:kvm_inj_exception                                        [100.00%]
                 4      kvm:kvm_page_fault                                           [100.00%]
                 0      kvm:kvm_msr                                                  [100.00%]
             1,994      kvm:kvm_cr                                                   [100.00%]
                 9      kvm:kvm_pic_set_irq                                          [100.00%]
             2,169      kvm:kvm_apic_ipi                                             [100.00%]
            14,806      kvm:kvm_apic_accept_irq                                      [100.00%]
            14,814      kvm:kvm_eoi                                                  [100.00%]
            14,534      kvm:kvm_pv_eoi                                               [100.00%]
                 0      kvm:kvm_nested_vmrun                                         [100.00%]
                 0      kvm:kvm_nested_intercepts                                    [100.00%]
                 0      kvm:kvm_nested_vmexit                                        [100.00%]
                 0      kvm:kvm_nested_vmexit_inject                                    [100.00%]
                 0      kvm:kvm_nested_intr_vmexit                                    [100.00%]
                 0      kvm:kvm_invlpga                                              [100.00%]
                 0      kvm:kvm_skinit                                               [100.00%]
           503,493      kvm:kvm_emulate_insn                                         [100.00%]
           485,083      kvm:vcpu_match_mmio                                          [100.00%]
                 0      kvm:kvm_write_tsc_offset                                     [100.00%]
                 0      kvm:kvm_update_master_clock                                    [100.00%]
                 0      kvm:kvm_track_tsc                                            [100.00%]
                 0      kvm:kvm_ple_window                                           [100.00%]
           189,660      kvm:kvm_userspace_exit                                       [100.00%]
                 9      kvm:kvm_set_irq                                              [100.00%]
                 9      kvm:kvm_ioapic_set_irq                                       [100.00%]
                 0      kvm:kvm_ioapic_delayed_eoi_inj                                    [100.00%]
               241      kvm:kvm_msi_set_irq                                          [100.00%]
                 2      kvm:kvm_ack_irq                                              [100.00%]
           699,029      kvm:kvm_mmio                                                 [100.00%]
             6,059      kvm:kvm_fpu                                                  [100.00%]
                 0      kvm:kvm_age_page                                             [100.00%]
                 0      kvm:kvm_try_async_get_page                                    [100.00%]
                 0      kvm:kvm_async_pf_doublefault                                    [100.00%]
                 0      kvm:kvm_async_pf_not_present                                    [100.00%]
                 0      kvm:kvm_async_pf_ready                                       [100.00%]
                 0      kvm:kvm_async_pf_completed                                   

       2.001028673 seconds time elapsed