On Sun, Oct 20, 2013 at 07:58:06PM -0400, Austin S Hemmelgarn wrote: > I am not trying to say that this provides any improvement in speed (or > at least the AMD options, the one for Intel Ivy Bridge processors does > appear to do better in this respect).
"Does appear" is not a very good answer - you need to give concrete benchmark results which people can repeat on their own and confirm your observations. > As I stated in the comments just before the patch itself, "...testing > of MPILEDRIVER seems to indicate an improvement to energy efficiency > over GENERIC_CPU as it causes the on cpu power sensor to consistently > read an average of 1.5 watts lower under idle load than when > using GENERIC_CPU (this corresponds to about 5% decrease in power > consumption on a idle-tickless system, and about 2% on a non-dynticks > system.).". While this result is dependent on a large number of > factors (not the least of which being that I have my CPU over-clocked > to the point that the lowest C-state runs at 1.4GHz, which really > hurts energy efficiency) it is still a positive result, and most of > the equivalent options primarily improve energy efficiency. Again, how exactly do I reproduce your observations on my boxes? I need a step-by-step walk through please. > Also, you have to understand that my target audience isn't the > mainstream distros,... Well, if your target audience is only a very small fraction of the linux users, then we don't need this in the mainline kernel in the first place, do we? Thanks. -- 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/
