On Wed, Jan 29, 2020 at 03:37:58PM +0100, sjpark@xxxxxxxxxx wrote: > On Wed, 29 Jan 2020 13:56:15 +0100 Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > > On Tue, Jan 28, 2020 at 01:00:33PM +0100, sjpark@xxxxxxxxxx wrote: > > > > > I worried whether it could be a bother to send the mail to everyone in the > > > section, but seems it was an unnecessary worry. Adding those to recipients. > > > You can get the original thread of this patchset from > > > https://lore.kernel.org/linux-mm/20200128085742.14566-1-sjpark@xxxxxxxxxx/ > > > > I read first patch (the document) and still have no friggin clue. > > Do you mean the document has insufficient description only? If so, could you > please point me me which information do you want to be added? There was a lot of words; but I'm still not sure what it actually does. I've read some of the code that followed; is it simply sampling the page-table access bit? It did some really weird things though, like that whole 3 regions thing. Also, you wrote you wanted feedback from perf people; but it doesn't use perf, what are you asking? Perf can do address based sampling of memops, I suspect you can create something using that.
