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Subject: Re: [PATCH 03/18] perf tools: Keep group information
From: Namhyung Kim <namhyung@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Stephane Eranian <eranian@google.com>,
        Andi Kleen <andi@firstfloor.org>, Namhyung Kim <namhyung.kim@lge.com>
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Date: Fri, 30 Nov 2012 00:09:11 +0900
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2012-11-29 (목), 16:02 +0100, Jiri Olsa:
> On Thu, Nov 29, 2012 at 11:58:54PM +0900, Namhyung Kim wrote:
> > 2012-11-29 (목), 15:33 +0100, Jiri Olsa:
> > > On Thu, Nov 29, 2012 at 03:38:31PM +0900, Namhyung Kim wrote:
> > > > From: Namhyung Kim <namhyung.kim@lge.com>
> > > 
> > > SNIP
> > > 
> > > > --- a/tools/perf/util/evlist.h
> > > > +++ b/tools/perf/util/evlist.h
> > > > @@ -21,6 +21,7 @@ struct perf_evlist {
> > > >  	struct list_head entries;
> > > >  	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
> > > >  	int		 nr_entries;
> > > > +	int		 nr_groups;
> > > >  	int		 nr_fds;
> > > >  	int		 nr_mmaps;
> > > >  	int		 mmap_len;
> > > > diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> > > > index 46c8004ca56b..887834ed0af1 100644
> > > > --- a/tools/perf/util/evsel.h
> > > > +++ b/tools/perf/util/evsel.h
> > > > @@ -73,6 +73,7 @@ struct perf_evsel {
> > > >  	bool 			needs_swap;
> > > >  	/* parse modifier helper */
> > > >  	int			exclude_GH;
> > > > +	int			nr_members;
> > > >  	struct perf_evsel	*leader;
> > > >  	char			*group_name;
> > > >  };
> > > 
> > > we could test both new fields in existing group tests
> > > 
> > > > @@ -230,4 +231,9 @@ static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
> > > >  {
> > > >  	return evsel->leader == evsel;
> > > 
> > 
> > You mean adding 'evsel->nr_members > 1' to this function?  For some
> > reason, I'd like to treat non-group events as group leaders so I dropped
> > that check from the function.
> 
> nope, the change is ok, I meant updating automated tests in tests/parse-events.c

Ah, okay.  Always forgot to update the test. :(  Will add.

Thanks,
Namhyung