On Mon, May 09, 2016 at 11:42:19AM +0200, Peter Zijlstra wrote: > On Thu, May 05, 2016 at 04:03:59PM -0700, Andi Kleen wrote: > > From: Andi Kleen <a...@linux.intel.com> > > > > Add a way to show different sysfs events attributes depending on > > HyperThreading is on or off. This is difficult to determine > > early at boot, so we just do it dynamically when the sysfs > > attribute is read. > > > > v2: > > Compute HT status only once in CPU online/offline hooks. > > v3: Use topology_max_smt_threads() > > Signed-off-by: Andi Kleen <a...@linux.intel.com> > > --- > > arch/x86/events/core.c | 24 ++++++++++++++++++++++++ > > arch/x86/events/perf_event.h | 14 ++++++++++++++ > > include/linux/perf_event.h | 7 +++++++ > > 3 files changed, 45 insertions(+) > > > > Should this not now live in /sys/devices/system/cpu/ ? Thomas?
This would be incompatible to all previous perf tools. Also not clear why you would want to move such events, just because they depend on SMT. -Andi -- a...@linux.intel.com -- Speaking for myself only
