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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-perf-users@vger.kernel.org, Song Liu <song@kernel.org>,
	bpf@vger.kernel.org
Subject: [PATCHSET 0/5] perf tools: Constify BPF control data properly (v1)
Date: Mon,  2 Sep 2024 13:05:10 -0700	[thread overview]
Message-ID: <20240902200515.2103769-1-namhyung@kernel.org> (raw)

Hello,

I've realized that some control data (usually for filter actions)
should be defined as 'const volatile' so that it can passed to the BPF
core and to be optimized properly (like with dead code elimination).

Convert the existing codes with the similar patterns.

Thanks,
Namhyung


Namhyung Kim (5):
  perf stat: Constify control data for BPF
  perf ftrace latency: Constify control data for BPF
  perf kwork: Constify control data for BPF
  perf lock contention: Constify control data for BPF
  perf record offcpu: Constify control data for BPF

 tools/perf/util/bpf_counter_cgroup.c          |  6 +--
 tools/perf/util/bpf_ftrace.c                  |  8 ++--
 tools/perf/util/bpf_kwork.c                   |  9 ++--
 tools/perf/util/bpf_kwork_top.c               |  7 +--
 tools/perf/util/bpf_lock_contention.c         | 45 ++++++++++---------
 tools/perf/util/bpf_off_cpu.c                 | 16 +++----
 tools/perf/util/bpf_skel/bperf_cgroup.bpf.c   |  2 +-
 tools/perf/util/bpf_skel/func_latency.bpf.c   |  7 +--
 tools/perf/util/bpf_skel/kwork_top.bpf.c      |  2 +-
 tools/perf/util/bpf_skel/kwork_trace.bpf.c    |  5 ++-
 .../perf/util/bpf_skel/lock_contention.bpf.c  | 27 +++++------
 tools/perf/util/bpf_skel/off_cpu.bpf.c        |  9 ++--
 12 files changed, 76 insertions(+), 67 deletions(-)

-- 
2.46.0.469.g59c65b2a67-goog


             reply	other threads:[~2024-09-02 20:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-02 20:05 Namhyung Kim [this message]
2024-09-02 20:05 ` [PATCH 1/5] perf stat: Constify control data for BPF Namhyung Kim
2024-09-02 20:05 ` [PATCH 2/5] perf ftrace latency: " Namhyung Kim
2024-09-02 20:05 ` [PATCH 3/5] perf kwork: " Namhyung Kim
2024-09-02 20:05 ` [PATCH 4/5] perf lock contention: " Namhyung Kim
2024-09-02 20:05 ` [PATCH 5/5] perf record offcpu: " Namhyung Kim
2024-09-03 15:18 ` [PATCHSET 0/5] perf tools: Constify BPF control data properly (v1) Arnaldo Carvalho de Melo

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