Messages in this thread | | | Date | Mon, 23 Jul 2012 20:13:58 +0200 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 08/11] perf tool: precise mode requires exclude_guest |
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Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu: > PEBS cannot be used with guest mode. If user adds :p modifier set > exclude_guest as well.
Is this something Intel specific? Or can someone think of an arch where this limitation wouldn't exist?
> > Signed-off-by: David Ahern <dsahern@gmail.com> > Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> > Cc: Ingo Molnar <mingo@kernel.org> > Cc: Jiri Olsa <jolsa@redhat.com> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Gleb Natapov <gleb@redhat.com> > Link: https://lkml.org/lkml/2012/7/9/264 > --- > tools/perf/util/parse-events.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c > index 1aa721d..f34629b 100644 > --- a/tools/perf/util/parse-events.c > +++ b/tools/perf/util/parse-events.c > @@ -653,6 +653,9 @@ int parse_events_modifier(struct list_head *list, char *str) > eH = 0; > } else if (*str == 'p') { > precise++; > + /* use of precise requires exclude_guest */ > + if (!exclude_GH) > + eG = 1; > } else > break; > > -- > 1.7.10.1
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