linux-kernel - [PATCH 0/1] perf test: Add test for branch stack sampling

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Date:   Wed, 15 Jun 2022 14:09:00 +0100
From:   German Gomez <german.gomez@....com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org
Cc:     German Gomez <german.gomez@....com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH 0/1] perf test: Add test for branch stack sampling

Hi,

While testing Anshuman Khandual's branch stack sampling ABI, and BRBE
driver ([1] and [2] respectively) I've been using this test to check the
consistency between arches (x86 and Arm64).

We might extend it with Arm64-specific tests once the BRBE driver has
been reviewed and merged, but for now I think this is generic enough to
cover both x86 LBR and Arm BRBE.

Thanks,
German

[1] https://lore.kernel.org/linux-arm-kernel/20220610035101.424112-1-anshuman.khandual@arm.com/
[2] https://lore.kernel.org/all/20220613100119.684673-1-anshuman.khandual@arm.com/

German Gomez (1):
  perf test: Add self test for branch stack sampling

 tools/perf/tests/shell/lib/brstack/main.h | 15 ++++
 tools/perf/tests/shell/lib/brstack/test.c | 25 +++++++
 tools/perf/tests/shell/test_brstack.sh    | 86 +++++++++++++++++++++++
 3 files changed, 126 insertions(+)
 create mode 100644 tools/perf/tests/shell/lib/brstack/main.h
 create mode 100644 tools/perf/tests/shell/lib/brstack/test.c
 create mode 100755 tools/perf/tests/shell/test_brstack.sh

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