On 06/30/2015 08:44 AM, Peter Zijlstra wrote: > On Tue, Jun 30, 2015 at 08:20:55AM -0400, Prarit Bhargava wrote: >> it seems like visiting changes on each of these packages (and the other >> packages that I'm sure I've missed) will be moderately difficult. >> >> Thoughts? > > Start by changing the ones users want to run most and leave the rest > requiring root privs until someone has the time to convert them. > > Its not like we can remove the msr driver any time soon anyway. >
Yes, I agree. > So I would suggest starting with the perf MSR driver thingy for all > those MSRs that count things and see if you can convert say > turbostat/cpufrequtils/powertop over to that. Yep, that was my plan -- I'm going to do the in-tree utilities first then look at the external programs. > > I suspect there's MSR that are useful to expose but are not counting, > I'm not sure perf is the right interface for those. > > Making an inventory on which MSRs are required by these tools and what > kind of data they provide might give a good idea on how to continue. > > If most of these tools only use counting MSRs that can be serviced with > the perf-msr driver then that would be great. > Thanks Peter! P. -- 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/
