On Thu, Mar 23, 2017 at 11:42 PM, Robert O'Callahan <rob...@ocallahan.org> wrote: > On Fri, Mar 24, 2017 at 1:12 PM, Ehsan Akhgari <ehsan.akhg...@gmail.com> > wrote: >> On Thu, Mar 23, 2017 at 7:51 PM, Jeff Gilbert <jgilb...@mozilla.com> wrote: >> >>> I'm interested to find out how the new Ryzen chips do. It should fit >>> their niche well. I have one at home now, so I'll test when I get a >>> chance. >>> >> >> Ryzen currently on Linux implies no rr, so beware of that. > > A contributor almost got Piledriver working with rr, but that was > based on "LWP" features that apparently are not in Ryzen. If anyone > finds any detailed documentation of the hardware performance counters > in Ryzen, let us know! All I can find is PR material.
I have NDA access to at least some of the Ryzen documentation and I haven't been able to find anything more on the performance counters other than: AMD64 Architecture Programmer’s Manual Volume 2: System Programming 3.27 December 2016 This document is already publicly available. I also have one of the chips so I can test code. If there are specific questions I can also forward them through our AMD contacts. -Jeff _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
