From: Kan Liang <kan.li...@intel.com> This patchkit adds the ability to turn off callgraphs and time stamps per event. This in term can reduce sampling overhead and the size of the perf.data.
Changes since V1: - Break up V1 patches into three patches(parse option changes, partial time support and partial callgrap support). - Use strings 'fp,dwarf,lbr,no' to identify callchains - Add test case in parse-events.c Changes since V2: - Rebase on 60cd37eb10 Changes since V3: - Replace OPT_CALLBACK_SET by current existing callback mechanism. - Using perf_evsel__set_sample_bit if possible - Change the expression "partial" to "per event" - Using global variable to indicate if 'time' is set per event. If 'time' is not set, enable it by default for perf record. Changes since V4: - Fix issue of setting callgraph_set Kan Liang (4): perf,tools: introduce callgraph_set for callgraph option perf,tool: per-event time support perf,tool: per-event callgrap support perf,tests: Add tests to callgrap and time parse tools/perf/Documentation/perf-record.txt | 8 ++++- tools/perf/builtin-record.c | 16 ++++++++-- tools/perf/builtin-trace.c | 1 + tools/perf/perf.h | 1 + tools/perf/tests/parse-events.c | 28 +++++++++++++++++ tools/perf/util/evsel.c | 54 ++++++++++++++++++++++++++++++-- tools/perf/util/parse-events.c | 29 +++++++++++++++++ tools/perf/util/parse-events.h | 5 +++ tools/perf/util/parse-events.l | 3 ++ tools/perf/util/pmu.c | 3 +- 10 files changed, 140 insertions(+), 8 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/