drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp


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#!/usr/bin/env ktap

# showing all tracepoints in histogram style

s = aggr_table()

trace *:* {
	s[execname()] = count()
}

trace_end {
	histogram(s)
}

print("Press Control-C to stop.")

#Results:
#^C
#                          value ------------- Distribution ------------- count
#                       swapper/0 |@@@@@@@@@@@@                           354378
#                       swapper/1 |@@@@@@@@@@                             284984
#                              ps |@@@@                                   115697
#                        ksmtuned |@@@                                    95857
#                          iscsid |@@                                     80008
#                             awk |@                                      30354
#                      irqbalance |                                       16530
#                       rcu_sched |                                       15892
#                        sendmail |                                       14463
#                     kworker/0:1 |                                       10540
#                    kworker/u4:2 |                                       9250
#                     kworker/1:2 |                                       7943
#                           sleep |                                       7555
#                           crond |                                       3911
#                     ksoftirqd/0 |                                       3817
#                            sshd |                                       2849
#                 systemd-journal |                                       2209
#                     migration/1 |                                       1601
#                     migration/0 |                                       1350
#                        dhclient |                                       1343
#                 nm-dhcp-client. |                                       1208
#                     ksoftirqd/1 |                                       1064
#                      watchdog/1 |                                       966
#                      watchdog/0 |                                       964
#                      khugepaged |                                       776
#                     dbus-daemon |                                       611
#                         rpcbind |                                       607
#                           gdbus |                                       529
#                  NetworkManager |                                       399
#                     jbd2/dm-1-8 |                                       378
#                   modem-manager |                                       184
#                  abrt-watch-log |                                       157
#                         polkitd |                                       156
#                   rs:main Q:Reg |                                       153
#                    avahi-daemon |                                       151
#                        rsyslogd |                                       102
#                         systemd |                                       96
#                    kworker/0:1H |                                       45
#                          smartd |                                       30