On Mon, Aug 31, 2015 at 06:26:00AM -0700, Guenter Roeck wrote: > On 08/31/2015 01:38 AM, Peter Zijlstra wrote: > >On Sun, Aug 30, 2015 at 05:53:22PM +0200, Borislav Petkov wrote: > >>On Sat, Aug 29, 2015 at 11:19:14AM +0200, Ingo Molnar wrote: > >>>So let me withdraw my ack: the much more important question that I > >>>missed first time around, why is this reporting feature living in > >>>hwmon, not in perf? We have energy reporting facilities in perf that > >>>this should be synced to. > >> > >>Because there's already fam15h_power driver which is exactly for that. > >>Making it part of perf is then a question of cat-ting the same sysfs > >>file twice, at the beginning and at the end of the trace, which is > >>trivial. > > > >That don't make sense. > > > >Looking at the BKDG Fam 15h 60h-6Fh these MSRs are per compute unit. > >This means you can do much finer grained measurements than system wide > >-- which is all hwmon seems capable of. > > > > Is it ? Why ?
Dunno, because there's that big old loop iterating all cpus? -- 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/