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Date: Thu, 17 Jul 2014 13:12:25 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Ingo Molnar <mingo@...nel.org> Cc: linux-kernel@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...il.com>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <peterz@...radead.org>, Stephane Eranian <eranian@...gle.com>, Arnaldo Carvalho de Melo <acme@...hat.com> Subject: [PATCH 23/33] perf evsel: Add 'no_aux_samples' option From: Adrian Hunter <adrian.hunter@...el.com> Add an option to prevent additional samples being added to a selected event by perf_evsel__config(). This is needed when using the sched_switch tracepoint to follow object code execution. Since sched_switch will be used only for switch information, additional sampling is wasteful. Signed-off-by: Adrian Hunter <adrian.hunter@...el.com> Cc: David Ahern <dsahern@...il.com> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Jiri Olsa <jolsa@...hat.com> Cc: Namhyung Kim <namhyung@...il.com> Cc: Paul Mackerras <paulus@...ba.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Stephane Eranian <eranian@...gle.com> Link: http://lkml.kernel.org/r/1405332185-4050-33-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> --- tools/perf/util/evsel.c | 6 +++--- tools/perf/util/evsel.h | 1 + 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index b760d32aae06..40626e5fc1c0 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -623,7 +623,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) attr->mmap_data = track; } - if (opts->call_graph_enabled) + if (opts->call_graph_enabled && !evsel->no_aux_samples) perf_evsel__config_callgraph(evsel, opts); if (target__has_cpu(&opts->target)) @@ -637,7 +637,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) target__has_cpu(&opts->target) || per_cpu)) perf_evsel__set_sample_bit(evsel, TIME); - if (opts->raw_samples) { + if (opts->raw_samples && !evsel->no_aux_samples) { perf_evsel__set_sample_bit(evsel, TIME); perf_evsel__set_sample_bit(evsel, RAW); perf_evsel__set_sample_bit(evsel, CPU); @@ -650,7 +650,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) attr->watermark = 0; attr->wakeup_events = 1; } - if (opts->branch_stack) { + if (opts->branch_stack && !evsel->no_aux_samples) { perf_evsel__set_sample_bit(evsel, BRANCH_STACK); attr->branch_sample_type = opts->branch_stack; } diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index a52e9a5bb2d0..8dfec05bcec2 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -83,6 +83,7 @@ struct perf_evsel { int is_pos; bool supported; bool needs_swap; + bool no_aux_samples; /* parse modifier helper */ int exclude_GH; int nr_members; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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