linux-kernel - [PATCH v2 0/1] perf test: Add test for branch stack sampling

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Message-Id: <20220705150511.473919-1-german.gomez@arm.com>
Date:   Tue,  5 Jul 2022 16:05:10 +0100
From:   German Gomez <german.gomez@....com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org, irogers@...gle.com
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 v2 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 will 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
also be useful for x86.

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/

---

v2
  - (Ian Rogers) Include C test program in the shell script.
  - Drop references to Anshuman's ABI ext (FAULT_DATA and FAULT_INST).
    We will track and update this later if necessary.

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

 tools/perf/tests/shell/test_brstack.sh | 114 +++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100755 tools/perf/tests/shell/test_brstack.sh

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2.25.1