On Thu, Jul 11, 2013 at 12:42:31AM -0400, Vince Weaver wrote: > On Wed, 10 Jul 2013, Ingo Molnar wrote: > > > Exactly - PMUs enumerated in /sys should be self-identifying, it's a > > hardware topology after all ... > > > > Anytime userspace is forced to look into /proc, or into weird places in > > /sys it's a FAIL really. > > well on x86 you have to look at /proc/cpuinfo to get the > vendor/family/model number. Should we add some specifier under sys? > It's probably too late though as all userspace event libs will have > to look at /proc/cpuinfo anyway to be backwards compatible.
If it's a new library implementing a new feature then no I don't think it needs to be backward compatible. It's just a choice the library makes as to what extent it depends on new kernel features. cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
