[PATCH v3 0/4] perf util: bpf perf improvements

Song Liu
2021-04-16T22:13:48Z

This patches set improves bpf_perf (perf-stat --bpf-counter) by
1) exposing key definitions to a libperf header;
2) adding compatibility check for perf_attr_map;
3) introducing config stat.bpf-counter-events.
4) introducing 'b' modify to event parser.

Changes v2 => v3:
1. Add 'b' modifier. (Jiri)
2. Allow configuring stat.bpf-counter-events with any event name (instead
of limiting to hardware events). (Jiri)

Changes v1 => v2:
1. Separte 2/3 from 1/3. (Jiri)
2. Rename bperf.h to bpf_perf.h. (Jiri)
3. Other small fixes/optimizations. (Jiri)

Song Liu (4):
perf util: move bpf_perf definitions to a libperf header
perf bpf: check perf_attr_map is compatible with the perf binary
perf-stat: introduce config stat.bpf-counter-events
perf-stat: introduce ':b' modifier

tools/lib/perf/include/perf/bpf_perf.h | 31 ++++++++++++++++
tools/perf/Documentation/perf-stat.txt | 2 ++
tools/perf/builtin-stat.c | 43 ++++++++++++++--------
tools/perf/util/bpf_counter.c | 50 +++++++++++++-------------
tools/perf/util/config.c | 4 +++
tools/perf/util/evsel.c | 22 ++++++++++++
tools/perf/util/evsel.h | 9 +++++
tools/perf/util/parse-events.c | 8 ++++-
tools/perf/util/parse-events.l | 2 +-
tools/perf/util/target.h | 5 ---
10 files changed, 129 insertions(+), 47 deletions(-)
create mode 100644 tools/lib/perf/include/perf/bpf_perf.h

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2.30.2