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 callgraph 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
Changes since V5:
- per-event settings over global settings in general
- support for event post configuration structure
Changes since V6:
- Add error infor for per-event time
- rename the option to call-graph and stacl-size
- refine parse/config callchain functions,
and reuse them for per-event callgraph setting
- Modify perf test
Jiri Olsa (2):
perf tools: Add support for event post configuration
perf tools: Force period term to overload global settings
Kan Liang (5):
perf,tools: introduce callgraph_set for callgraph option
perf,tools: per-event time support
perf,tools: refine parse/config callchain functions
perf,tools: per-event callgraph support
perf,tests: Add tests to callgraph and time parse
tools/perf/Documentation/perf-record.txt | 10 ++-
tools/perf/builtin-record.c | 11 +++-
tools/perf/perf.h | 1 +
tools/perf/tests/parse-events.c | 50 ++++++++++++++-
tools/perf/util/callchain.c | 14 ++---
tools/perf/util/callchain.h | 2 +-
tools/perf/util/evsel.c | 105 +++++++++++++++++++++++++++++--
tools/perf/util/evsel.h | 26 ++++++++
tools/perf/util/parse-events.c | 94 +++++++++++++++++++++++----
tools/perf/util/parse-events.h | 3 +
tools/perf/util/parse-events.l | 3 +
tools/perf/util/pmu.c | 3 +-
12 files changed, 289 insertions(+), 33 deletions(-)
--
1.8.3.1
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