On Mon, Aug 29, 2016 at 12:40:47PM +0200, Peter Zijlstra wrote: > On Sun, Aug 28, 2016 at 08:19:46PM +0200, Jiri Olsa wrote: > > Jirka, Peter and Jean-Pierre reported performance drop on > > some cpus after making cpu offline and online again. > > > > The reason is the kernel logic that falls back to SMT > > level topology if more than one node is detected within > > CPU package. During the system boot this logic cuts out > > the DIE topology level and numa code adds NUMA level > > on top of this. > > Its not SMT topology, and back when I asked if he had CoD enabled or > such he said not. > > > See also: > > http://lkml.kernel.org/r/1471559812-19967-3-git-send-email-srinivas.pandruv...@linux.intel.com > > Arguably, that should have been split in two patches, but alas..
ok, that change will work for us as well are you going to pull it? thanks, jirka
