topic Re: Hardware Performance Counter in Mobile and Desktop Processors

Hardware Performance Counter

NPund — Wed, 09 May 2018 20:38:29 GMT

Hi all,

Thank you for all the previous help as I am still new to performance counters.

So, I understood there are 8 general purpose counters and 3 fixed counters per core.

I can use rdmsr to read the counter values at addresses 0xc1, 0xc2 (for general) and 0x309,0x30a, 0x30b for fixed.

I also tried intel pcm from github but that supports only specific events which I can monitor.

So my question is:-

1. How can I map specific event to one of the general purpose counter and read it?

2. Will likwid be helpful in any way?

3. Is there any list of hardware events for guideline?

I have Kaby Lake microarchitecture.

Thanks

Re: Hardware Performance Counter

idata — Thu, 10 May 2018 19:33:15 GMT

Hello socfpga,

Thank you for joining the Intel Community Support.

In order to provide a detailed answer and assist you better, I recommend you to go to our Intel® Developer Zone. You can find additional information below:

Intel® Developer Zone

https://software.intel.com/en-us

Join the Intel® Developer Zone

https://software.intel.com/registration/?lang=en-us

Please let me know how it goes.

Wanner G.

Re: Hardware Performance Counter

idata — Tue, 15 May 2018 19:38:40 GMT

Hello socfpga,

I am just following up on your inquiry.

Were you able to get additional support from our Intel® Developer Zone?

Wanner G.

Re: Hardware Performance Counter

NPund — Tue, 15 May 2018 20:31:57 GMT

Hello Wanner,

Yes, Intel Developer Zone was really helpful.

Thanks