On Thu, 26 Mar 2020, Zhang Rui wrote: > > BTW, it is better to get the output of "rdmsr 0x65C" as well. OK, so here's that for the "4 counters" (with the "psys domain") case: MSR value on CPU 0 for 0x65C is: dd0000 MSR value on CPU 1 for 0x65C is: dd0000 MSR value on CPU 2 for 0x65C is: dd0000 MSR value on CPU 3 for 0x65C is: dd0000 MSR value on CPU 4 for 0x65C is: dd0000 MSR value on CPU 5 for 0x65C is: dd0000 MSR value on CPU 6 for 0x65C is: dd0000 MSR value on CPU 7 for 0x65C is: dd0000 -Kenny -- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Silicon Valley