Intel Comet Lake support

Created by: jchia

Why do you need support for this specific architecture? Comet Lake is another generation of Intel x86-64 processor. I would like to use likwid-perfctr to study x86-64 programs on a Comet Lake processor such as i9-10900K.

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

$ lscpu
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              10
On-line CPU(s) list: 0-9
Thread(s) per core:  1
Core(s) per socket:  10
Socket(s):           1
NUMA node(s):        1
Vendor ID:           GenuineIntel
CPU family:          6
Model:               165
Model name:          Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
Stepping:            5
CPU MHz:             3700.357
BogoMIPS:            7400.00
Virtualization:      VT-x
L1d cache:           32K
L1i cache:           32K
L2 cache:            256K
L3 cache:            20480K
NUMA node0 CPU(s):   0-9
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm arat pln pts pku ospke md_clear flush_l1d arch_capabilities

Is the documentation of the hardware counters publicly available? I don't know.

Are there already any usable tools (commercial or open-source)? perf seems to work, at least to some extend. I'm not sure whether it is working with all the events available on Comet Lake, though. I suspect that it is not as perf list shows a longer list for a i7-4770 than a i9-10900K.