On Mon, Sep 04, 2017 at 11:00:37AM -0300, Arnaldo Carvalho de Melo wrote: > From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> > > Some POWER PMU event names have multiple/alternate event codes. These > alternate event codes were listed in the POWER9 JSON files for > reference. > > But the perf tool does not seem to handle duplicates cleanly. 'perf > list' shows such duplicate events only once, but 'perf stat' ends up > counting the first event code twice, multiplexing if necessary and we > end up with double the event counts. > > Remove the duplicate event codes from the JSON files for now.
It would be better to fix it in perf. I assume it wouldn't be that hard. Intel may get multiple versions of events at some point too, as events get renamed, but the old names stay around for compatibility. -Andi
