On 04/23/2015 05:21 PM, Thomas Gleixner wrote: > I know of a SMI event counter which is available on newer CPUs and > Intel promised to add a SMI cycle counter as well. I have no idea > whether that one ever materialized. PeterZ should know.
The turbostat shows how many SMIs happened during a period. To do it, it reads the 'MSR_SMI_COUNT' counter. The code's comment says this counter is there since Nehalem. -- 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/
