From: Song Liu <songliubraving@fb.com>
To: <linux-kernel@vger.kernel.org>
Cc: <acme@kernel.org>, <peterz@infradead.org>, <mingo@redhat.com>,
<alexander.shishkin@linux.intel.com>, <namhyung@kernel.org>,
<mark.rutland@arm.com>, <jolsa@redhat.com>, <kernel-team@fb.com>,
Song Liu <songliubraving@fb.com>
Subject: [PATCH v7 0/3] Introduce perf-stat -b for BPF programs
Date: Tue, 29 Dec 2020 13:42:11 -0800 [thread overview]
Message-ID: <20201229214214.3413833-1-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 v6 => v7
1. Merge documentation change with feature change. (Arnaldo)
2. Fix python import perf. (Arnaldo)
3. Other small fixes. (Namhyung)
4. Improve allocation/free of bpf skeleton. Also added assert()'s to
debug a segfault.
Changes v5 => v6
1. Update the name for bootstrap bpftool. (Jiri)
Changes v4 => v5:
1. Add documentation. (Jiri)
2. Silent make output for removing .bpf.o file. (Jiri)
Changes v3 => v4:
1. Split changes in bpftool/Makefile to a separate patch
2. Various small fixes. (Jiri)
Changes v2 => v3:
1. Small fixes in Makefile.perf and bpf_counter.c (Jiri)
2. Rebased on top of bpf-next. This is because 1/2 conflicts with some
patches in bpftool/Makefile.
Changes PATCH v1 => PATCH v2:
1. Various fixes in Makefiles. (Jiri)
2. Fix an build warning/error with gcc-10. (Jiri)
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 (3):
bpftool: add Makefile target bootstrap
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/Documentation/perf-stat.txt | 18 ++
tools/perf/Makefile.config | 9 +
tools/perf/Makefile.perf | 49 ++-
tools/perf/builtin-stat.c | 82 ++++-
tools/perf/util/Build | 1 +
tools/perf/util/bpf_counter.c | 297 ++++++++++++++++++
tools/perf/util/bpf_counter.h | 72 +++++
tools/perf/util/bpf_skel/.gitignore | 3 +
.../util/bpf_skel/bpf_prog_profiler.bpf.c | 93 ++++++
tools/perf/util/evsel.c | 9 +
tools/perf/util/evsel.h | 5 +
tools/perf/util/python.c | 21 ++
tools/perf/util/stat-display.c | 4 +-
tools/perf/util/stat.c | 2 +-
tools/perf/util/target.c | 34 +-
tools/perf/util/target.h | 10 +
tools/scripts/Makefile.include | 1 +
19 files changed, 696 insertions(+), 20 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:[~2020-12-29 21:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-29 21:42 Song Liu [this message]
2020-12-29 21:42 ` [PATCH v7 1/3] bpftool: add Makefile target bootstrap Song Liu
2020-12-29 21:42 ` [PATCH v7 2/3] perf: support build BPF skeletons with perf Song Liu
2020-12-29 21:42 ` [PATCH v7 3/3] perf-stat: enable counting events for BPF programs Song Liu
2021-01-12 7:35 ` Namhyung Kim
2021-01-15 18:53 ` Arnaldo Carvalho de Melo
2021-01-18 19:38 ` Arnaldo Carvalho de Melo
2021-01-19 0:48 ` Song Liu
2021-01-19 14:31 ` Arnaldo Carvalho de Melo
2021-01-19 14:42 ` Arnaldo Carvalho de Melo
2021-01-19 16:31 ` Arnaldo Carvalho de Melo
2021-01-19 21:54 ` Song Liu
2021-01-19 22:30 ` Arnaldo Carvalho de Melo
2021-01-20 12:37 ` Arnaldo Carvalho de Melo
2021-01-20 13:01 ` Arnaldo Carvalho de Melo
2021-01-20 13:50 ` Arnaldo Carvalho de Melo
2021-01-20 16:30 ` FIX " Arnaldo Carvalho de Melo
2021-01-20 16:40 ` Song Liu
2021-01-20 17:04 ` Arnaldo Carvalho de Melo
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