On Tue, Mar 22, 2016 at 04:08:46PM -0700, Andi Kleen wrote: SNIP
> In this case perf stat automatically enables --per-core mode and also requires > global mode (-a) and avoiding other filters (no cgroup mode) > > When Hyper Threading is off this can be overriden with the --single-thread > option. When Hyper Threading is on it is enforced, the only way to > not require -a here is to off line the logical CPUs of the second > threads. > > One side effect is that this may require root rights or a > kernel.perf_event_paranoid=-1 setting. > > Full tree available in > git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc perf/top-down-16 > can't see this one (-16): [jolsa@krava perf]$ git remote update ak Fetching ak [jolsa@krava perf]$ git branch -r | grep top-down ak/perf/top-down-10 ak/perf/top-down-11 ak/perf/top-down-13 ak/perf/top-down-2 thanks, jirka
