> I verified that CPU freq requests were taken by reading out the PERF_STATUS > register.
Don't use the x86 PERF_STATUS register -- it will not tell you what you want to know. If you want to see the actual frequency, you need to watch how many cycles elapse per a known time interval, which is how intel_pstate and the turbostat utility do it. cheers, Len Brown Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
