Rocket Lake support requrest.

Created by: edisonchan

Why do you need support for this specific architecture? I hope to use likwid to profiling Rocket Lake.

**Which architecture model, family and further information? CPU or accelerator? **

CPU family:                    6
Model:                           167
Model name:                  11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz

Is the documentation of the hardware counters publicly available? https://software.intel.com/content/www/us/en/develop/articles/intel-sdm.html The RKL is backport of IceLake, I think most performance counters should be same.

Are there already any usable tools (commercial or open-source)? Perf do support RKL architecture counter, but Power/Energy not yet.

likwid-perfctr -g Energy sleep 10
Cannot access directory /usr/local/share/likwid/perfgroups/unknown
--------------------------------------------------------------------------------
CPU name:       11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz
CPU type:       Unknown Intel Processor
CPU clock:      3.50 GHz
ERROR - [./src/perfmon.c:perfmon_init_maps:1157] Unsupported Processor
ERROR - [./src/perfmon.c:perfmon_init_funcs:1690] Unsupported Processor
Segmentation fault (core dumped)

I can use rdmsr to read the PKG energy status:

sudo rdmsr -d 0x611
806652205

but I dont know how to use msr method to profiling a program that have high power consumption and the run time lager than 60 seconds.

According Intel SDM: "MSR_PKG_ENERGY_STATUS is a read-only MSR. It reports the actual energy use for the package domain. This MSR is updated every ~1msec. It has a wraparound time of around 60 secs when power consumption is high, andmay be longer otherwise."