two events monitoring in simple-pebs.c

[doru50]

I use Intel cascade processor. Is there any way to change code to monitor two events simultaneously?

I tried adding below definitions and some codes to use these, but I don't think it is the correct way to monitor two events.

#define MSR_IA32_PERFCTR1           0x000000c2
#define MSR_IA32_EVNTSEL1           0x00000187

Could you give me some advise how to edit the code in simple-pebs.c to monitor two events?

[andikleen]

Every time simple-pebs programs or reads one counter program two. It is always the next MSR number. Or use a more capable PEBS driver like perf