P-State transition monitoring

P-State transition monitoring

Hello,I'm doing several profiling routines, including MSR_PERF_STATUS for P-State read-out.I'm a bit puzzled as to why for SandyBridgeIA32_PERF_CTL is defined per thread but MSR_PERF_STATUS per package.Windows and Linux Power Management are setting each core individually, but by reading out 0x198 on every core I also see individual P-States per core in PERF_STATUS.Giving that PERF_STATUS is only defined per package, and not per thread, what should I make of it?Could someone please clarify if this is intended or a documentation error?Thanks

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