On Mon, Aug 28, 2017 at 11:19:31AM +0200, Jiri Olsa wrote: > On Fri, Aug 11, 2017 at 04:26:32PM -0700, Andi Kleen wrote: > > From: Andi Kleen <[email protected]> > > > > Some of the metrics formulas (like GFLOPs) need to know how long > > the measurement period is. Support an internal event called duration_time, > > which > > reports time in second. It maps to the dummy event, but is > > special cased for statistics to report the walltime duration. > > > > So far it is not printed, but only used internally for metrics. > > > > Signed-off-by: Andi Kleen <[email protected]> > > --- > > tools/perf/util/parse-events.l | 1 + > > tools/perf/util/stat-shadow.c | 17 +++++++++++++---- > > 2 files changed, 14 insertions(+), 4 deletions(-) > > > > diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l > > index fdb5bb52f01f..ea2426daf7e8 100644 > > --- a/tools/perf/util/parse-events.l > > +++ b/tools/perf/util/parse-events.l > > @@ -288,6 +288,7 @@ cpu-migrations|migrations { > > return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COU > > alignment-faults { return sym(yyscanner, > > PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); } > > emulation-faults { return sym(yyscanner, > > PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); } > > dummy { return sym(yyscanner, > > PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); } > > +duration_time { return sym(yyscanner, > > PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); } > > could you please use '-' (current style) instead of '_'
This would require escaping in the expressions because - is a vaid operator. It looks nicer with the _ and it's only used internally anyways. -Andi
