How to trace Hardware Performance Counters?

Open discussion of PAPI.

How to trace Hardware Performance Counters?

Postby albgarse » Tue Mar 17, 2015 6:49 am

I would like to trace dynamically the Hardware Parformance Counters (HPC) in realtime for a running proccess. I've been googling but I can't find what I'm looking for. I've used PAPI for source code instrumentation, but I don't have the sources for the program I want to profile. Linux perf utility seems to be the tool I need, but I'm only able to get an overview for the counters events (in percentage). Is there any tool to trace the counters over the time while the proccess is running? Something like:

timestamp1, counter1 value, counter2 value
timestamp2, counter1 value, counter2 value
...

Thanks and best regards.
albgarse
 
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