Comment 2 for bug 1734130

Isn't that covered in the way everybody does it via "perf" [1] ?

Can report the same and is fairly known by everyone right?
Here an example of combined generic and s390 events of start/stopping a guest.

sudo perf stat -e 'kvm:*' -a sleep 1h
^Csleep: Interrupt

 Performance counter stats for 'system wide':

                 0 kvm:kvm_s390_skey_related_inst
                 0 kvm:kvm_s390_major_guest_pfault
                 0 kvm:kvm_s390_pfault_init
                 0 kvm:kvm_s390_pfault_done
            36.984 kvm:kvm_s390_sie_enter
                 1 kvm:kvm_s390_sie_fault
            36.984 kvm:kvm_s390_sie_exit
            16.747 kvm:kvm_s390_intercept_instruction
                 0 kvm:kvm_s390_intercept_prog
                 0 kvm:kvm_s390_intercept_validity
                 0 kvm:kvm_s390_handle_sigp
                 0 kvm:kvm_s390_handle_sigp_pei
            15.542 kvm:kvm_s390_handle_diag
                 1 kvm:kvm_s390_handle_lctl
                 0 kvm:kvm_s390_handle_stctl
                11 kvm:kvm_s390_handle_prefix
                 3 kvm:kvm_s390_handle_stap
                 3 kvm:kvm_s390_handle_stfl
                 8 kvm:kvm_s390_handle_stsi
                 0 kvm:kvm_s390_handle_operexc
                 0 kvm:kvm_s390_handle_sthyi
               973 kvm:kvm_userspace_exit
                76 kvm:kvm_vcpu_wakeup
               320 kvm:kvm_set_irq
                 0 kvm:kvm_ack_irq
                 0 kvm:kvm_mmio
                 0 kvm:kvm_fpu
                 0 kvm:kvm_age_page
                 0 kvm:kvm_try_async_get_page
                 0 kvm:kvm_async_pf_doublefault
                 0 kvm:kvm_async_pf_not_present
                 0 kvm:kvm_async_pf_ready
                 0 kvm:kvm_async_pf_completed
                30 kvm:kvm_halt_poll_ns

       5,188933775 seconds time elapsed

And since perf can do much (much much) more with these tracepoints.
IIRC that script is just an example from the early days.
Is there a benefit to use that over perf?

[1]: https://www.linux-kvm.org/page/Perf_events