Comment 2 for bug 1727136

Tested on Ubuntu 17.10 on Purley-4S. It has this issue.

root@ubuntu:/home/test# perf stat -e cpu/event=0x28,umask=0x18,name=core_power_lvl1_turbo_license/,cpu/event=0x28,umask=0x20,name=core_power_lvl2_turbo_license/,cpu/event=0x28,umask=0x40,name=core_power_throttle/,cycles -a -I 1000 sleep 10
# time counts unit events
     1.095335844 0 core_power_lvl1_turbo_license
     1.095335844 0 core_power_lvl2_turbo_license
     1.095335844 0 core_power_throttle
     1.095335844 147,184,144 cycles
     2.139554427 0 core_power_lvl1_turbo_license
     2.139554427 0 core_power_lvl2_turbo_license
     2.139554427 35,560 core_power_throttle
     2.139554427 170,364,636 cycles
     3.183743147 0 core_power_lvl1_turbo_license
     3.183743147 0 core_power_lvl2_turbo_license
     3.183743147 20,538 core_power_throttle
     3.183743147 110,499,586 cycles
     4.228109748 0 core_power_lvl1_turbo_license
     4.228109748 0 core_power_lvl2_turbo_license
     4.228109748 21,482 core_power_throttle
     4.228109748 121,552,440 cycles
     5.272593234 0 core_power_lvl1_turbo_license
     5.272593234 0 core_power_lvl2_turbo_license
     5.272593234 21,484 core_power_throttle
     5.272593234 135,378,982 cycles
     6.316954225 0 core_power_lvl1_turbo_license
     6.316954225 0 core_power_lvl2_turbo_license
     6.316954225 27,796 core_power_throttle
     6.316954225 132,060,197 cycles
     7.361153943 0 core_power_lvl1_turbo_license
     7.361153943 0 core_power_lvl2_turbo_license
     7.361153943 21,158 core_power_throttle
     7.361153943 123,277,306 cycles
     8.405536057 0 core_power_lvl1_turbo_license
     8.405536057 0 core_power_lvl2_turbo_license
     8.405536057 19,822 core_power_throttle
     8.405536057 121,856,825 cycles
     9.450094871 0 core_power_lvl1_turbo_license
     9.450094871 0 core_power_lvl2_turbo_license
     9.450094871 21,966 core_power_throttle
     9.450094871 135,282,793 cycles
    10.046063508 0 core_power_lvl1_turbo_license
    10.046063508 0 core_power_lvl2_turbo_license
    10.046063508 21,832 core_power_throttle
    10.046063508 118,757,585 cycles
root@ubuntu:/home/test# uname -r
4.13.0-16-generic
root@ubuntu:/home/test# ldd --version
ldd (Ubuntu GLIBC 2.26-0ubuntu2) 2.26