From: Song Liu <song@kernel.org>
To: <linux-kernel@vger.kernel.org>
Cc: <kernel-team@fb.com>, <acme@kernel.org>, <acme@redhat.com>,
<namhyung@kernel.org>, <jolsa@kernel.org>,
<songliubraving@fb.com>, Song Liu <song@kernel.org>
Subject: [PATCH v5 0/5] perf util: bpf perf improvements
Date: Sun, 25 Apr 2021 14:43:28 -0700 [thread overview]
Message-ID: <20210425214333.1090950-1-song@kernel.org> (raw)
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.
5) add bpf_counter_ops->disable()
Changes v4 => v5:
1. Add bpf_counter_ops->disable(). (Namhyung, Jiri)
Changes v3 => v4:
1. Improve the logic that decides when to skip read_affinity_counters().
(Jiri)
2. Clean up a condition in bpf_counters.c:read_counters(). (Jiri)
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 (5):
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
perf-stat: introduce bpf_counter_ops->disable()
tools/lib/perf/include/perf/bpf_perf.h | 31 +++++++++++
tools/perf/Documentation/perf-stat.txt | 2 +
tools/perf/builtin-stat.c | 42 +++++++++------
tools/perf/util/bpf_counter.c | 75 +++++++++++++++++---------
tools/perf/util/bpf_counter.h | 7 +++
tools/perf/util/config.c | 4 ++
tools/perf/util/evlist.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 --
12 files changed, 162 insertions(+), 49 deletions(-)
create mode 100644 tools/lib/perf/include/perf/bpf_perf.h
--
2.30.2
next reply other threads:[~2021-04-25 21:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-25 21:43 Song Liu [this message]
2021-04-25 21:43 ` [PATCH v5 1/5] perf util: move bpf_perf definitions to a libperf header Song Liu
2021-04-25 21:43 ` [PATCH v5 2/5] perf bpf: check perf_attr_map is compatible with the perf binary Song Liu
2021-04-25 21:43 ` [PATCH v5 3/5] perf-stat: introduce config stat.bpf-counter-events Song Liu
2021-04-25 21:43 ` [PATCH v5 4/5] perf-stat: introduce ':b' modifier Song Liu
2021-04-25 21:43 ` [PATCH v5 5/5] perf-stat: introduce bpf_counter_ops->disable() Song Liu
2021-04-26 21:27 ` Jiri Olsa
2021-04-26 22:18 ` Song Liu
2021-04-27 12:33 ` Jiri Olsa
2021-04-27 19:30 ` Song Liu
2021-04-29 22:40 ` Song Liu
2021-05-03 14:09 ` Jiri Olsa
2021-05-03 15:25 ` Arnaldo Carvalho de Melo
2021-04-27 19:27 ` Arnaldo Carvalho de Melo
2021-04-27 19:42 ` Arnaldo Carvalho de Melo
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