Messages in this thread | | | From | German Gomez <> | Subject | [PATCH 0/1] perf test: Add branch stack sampling tests for ARM64 | Date | Tue, 25 Jan 2022 16:25:08 +0000 |
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Adds testing of branch stack sampling on ARM64. Branch stack sampling is supported by the Branch Record Buffer Extension (BRBE). In order to run the tests, the Kernel must have BRBE support enabled.
At the time of writing, BRBE support in the Kernel is provided by the patches in RFC [1]. If BRBE support is not detected, the tests will be skipped.
Information about BRBE can be found in [2].
[1]: https://lore.kernel.org/all/1642998653-21377-1-git-send-email-anshuman.khandual@arm.com/ [2]: https://developer.arm.com/documentation/ddi0608/latest
German Gomez (1): perf test: Add branch stack sampling tests for ARM64
.../perf/tests/shell/test_arm_brbe_kernel.sh | 42 ++++++++++ .../tests/shell/test_arm_brbe_userspace.sh | 80 +++++++++++++++++++ 2 files changed, 122 insertions(+) create mode 100755 tools/perf/tests/shell/test_arm_brbe_kernel.sh create mode 100755 tools/perf/tests/shell/test_arm_brbe_userspace.sh
-- 2.25.1
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