From: Song Liu <songliubraving@fb.com>
To: <linux-kernel@vger.kernel.org>
Cc: <kernel-team@fb.com>, <peterz@infradead.org>, <mingo@redhat.com>,
<acme@kernel.org>, <mark.rutland@arm.com>,
<alexander.shishkin@linux.intel.com>, <jolsa@redhat.com>,
<namhyung@kernel.org>, Song Liu <songliubraving@fb.com>
Subject: [PATCH v1 0/2] Introduce perf-stat -b for BPF programs
Date: Wed, 2 Dec 2020 01:37:07 -0800 [thread overview]
Message-ID: <20201202093709.3374099-1-songliubraving@fb.com> (raw)
This set introduces perf-stat -b option to count events for BPF programs.
This is similar to bpftool-prog-profile. But perf-stat makes it much more
flexible.
Changes RFC v2 => PATCH v1:
1. Support counting on multiple BPF programs.
2. Add BPF handling to target__validate().
3. Improve Makefile. (Jiri)
Changes RFC v1 => RFC v2:
1. Use bootstrap version of bpftool. (Jiri)
2. Set default to not building bpf skeletons. (Jiri)
3. Remove util/bpf_skel/Makefile, keep all the logic in Makefile.perf.
(Jiri)
4. Remove dependency to vmlinux.h in the two skeletons. The goal here is
to enable building perf without building kernel (vmlinux) first.
Note: I also removed the logic that build vmlinux.h. We can add that
back when we have to use it (to access big kernel structures).
Song Liu (2):
perf: support build BPF skeletons with perf
perf-stat: enable counting events for BPF programs
tools/bpf/bpftool/Makefile | 2 +
tools/build/Makefile.feature | 4 +-
tools/perf/Makefile.config | 10 +
tools/perf/Makefile.perf | 46 ++-
tools/perf/builtin-stat.c | 70 ++++-
tools/perf/util/Build | 1 +
tools/perf/util/bpf_counter.c | 281 ++++++++++++++++++
tools/perf/util/bpf_counter.h | 73 +++++
tools/perf/util/bpf_skel/.gitignore | 3 +
.../util/bpf_skel/bpf_prog_profiler.bpf.c | 96 ++++++
tools/perf/util/evsel.c | 11 +
tools/perf/util/evsel.h | 6 +
tools/perf/util/stat-display.c | 4 +-
tools/perf/util/target.c | 34 ++-
tools/perf/util/target.h | 10 +
tools/scripts/Makefile.include | 1 +
16 files changed, 636 insertions(+), 16 deletions(-)
create mode 100644 tools/perf/util/bpf_counter.c
create mode 100644 tools/perf/util/bpf_counter.h
create mode 100644 tools/perf/util/bpf_skel/.gitignore
create mode 100644 tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
--
2.24.1
next reply other threads:[~2020-12-02 9:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 9:37 Song Liu [this message]
2020-12-02 9:37 ` [PATCH v1 1/2] perf: support build BPF skeletons with perf Song Liu
2020-12-03 23:31 ` Jiri Olsa
2020-12-04 4:13 ` Song Liu
2020-12-02 9:37 ` [PATCH v1 2/2] perf-stat: enable counting events for BPF programs Song Liu
2020-12-03 23:31 ` Jiri Olsa
2020-12-04 4:07 ` Song Liu
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