| Issue |
113941
|
| Summary |
[llvm-exegesis] Check PFM counter mappings for AlderLake/SapphireRapids
|
| Labels |
tools:llvm-exegesis,
backend:X86 Scheduler Models
|
| Assignees |
boomanaiden154
|
| Reporter |
boomanaiden154
|
There seem to be some conflicts between different documentation sources (primarily a section of the Intel architecture manual on Golden Cove and seemingly most other things) regarding which counters are grouped. Libpfm/others have performance counters for ports 2/3/10 on golden cove based CPUs, whereas that section of the architecture manual has ports 2/3/11 grouped.
This should be investigated and either fixed in LLVM/libpfm if it is an issue there, or feedback should be sent to Intel to fix their documentation.
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