Hi Peter, have you a chance to look into this? Is there anything I can do to help you to fix it?
Thanks a lot! Jirka On Wed, Jun 29, 2016 at 11:58 AM, Peter Zijlstra <pet...@infradead.org> wrote: > On Wed, Jun 29, 2016 at 11:47:56AM +0200, Jirka Hladky wrote: >> Hi Peter, >> >> I think Cluster on Die technology was introduced in Haswell generation. The >> server I'm using is equipped with 4x Intel E5-4610 v2 (Ivy Bridge). I have >> double checked the BIOS and there is no cluster on die setting. > > Oh right, that's E5v3.. > >> The authors of the paper have reported the issue on AMD Bulldozer CPU which >> also does not have COD technology. > > The Opteron 6272, which they use, is an Interlagos, that has something > similar in that each package contains two nodes. > > And their patch touches exactly that part of the x86 topo setup, the > match_die() && !same_node() condition, IOW same package, different node. > > That's not a path an Intel chip would trigger without COD support.