Em Wed, Apr 10, 2019 at 09:36:41AM -0300, Arnaldo Carvalho de Melo escreveu: > Em Tue, Mar 19, 2019 at 04:56:53PM +0800, Jin Yao escreveu: > > Add a 'percore' event qualifier, like cpu/event=0,umask=0x3,percore=1/, > > that sums up the event counts for both hardware threads in a core. > > > > We can already do this with --per-core, but it's often useful to do > > this together with other metrics that are collected per hardware thread. > > So we need to support this per-core counting on a event level. > > > > This can be implemented in only the user tool, no kernel support needed. > > > > v3: > > --- > > Simplify the code according to Jiri's comments. > > Before: > > "return term->val.percore ? true : false;" > > Now: > > "return term->val.percore;" > > > > v2: > > --- > > Change the qualifier name from 'coresum' to 'percore' according to > > comments from Jiri and Andi. > > I'm applying this, but please, don't forget to, when adding a new > qualifier, to update the documentation... I'm doing this for you this > time.
The first patch didn't apply with 'git am', I did it manually, and added the patch below But then the second doesn't apply to my perf/core branch as well, please refresh and resend a v4, thanks. - Arnaldo diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 138fb6e94b3c..18ed1b0fceb3 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -199,6 +199,18 @@ also be supplied. For example: perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ... +EVENT QUALIFIERS: + +It is also possible to add extra qualifiers to an event: + +percore: + +Sums up the event counts for all hardware threads in a core, e.g.: + + + perf stat -e cpu/event=0,umask=0x3,percore=1/ + + EVENT GROUPS ------------
