On 26/11/19 11:09, Greg Kroah-Hartman wrote: > So I think there are two different things here: > - a simple data structure for in-kernel users of statistics > - a way to export statistics to userspace > > Now if they both can be solved with the same "solution", wonderful! But > don't think that you have to do both of these at the same time. > > Which one are you trying to solve here, I can't figure it out. Is it > the second one? I already have the second in KVM using debugfs, but that's not good. So I want to do: - a simple data structure for in-kernel *publishers* of statistics - a sysfs-based interface to export it to userspace, which looks a lot like KVM's debugfs-based statistics. What we don't have to do at the same time, is a new interface to userspace, one that is more efficient while keeping the self-describing property that we agree is needed. That is also planned, but would come later. Paolo
