> I am not interested in older processors, but I think for all recent Intel > processors, there is a fairly simple algorithm to get the frequency using > a couple of MSRs (including MSR_IA32_EBL_CR_POWERON or MSR_FSB_FREQ).
Hmm, maybe make it an own driver that creates the sysfs entries somewhere. I don't think it's useful enough for the main kernel. But what happens during power saving that may lower the frequency? Wouldn't you need update events for that? That might complicate it. > > Don't we already have /sys entries that exits only for certain processors > or platforms? Yes. > I think the Opteron have HYPERTRANSPORT-related events which could be used > to obtain similar metrics. Yes, but you usually don't need the frequency. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
