Re: [PATCH 0/3] perf test: Extend branch stack sampling test for arm64 BRBE

[James Clark]

On 18/08/2025 10:38 pm, Ian Rogers wrote:
> On Wed, Aug 13, 2025 at 6:39 AM James Clark <james.clark@xxxxxxxxxx> wrote:
> > Refactor and add some extra tests for all platforms which were useful
> > when developing and testing the BRBE (Branch Buffer Extension) driver
> > [1]. Then lastly extend the test for new features which are BRBE
> > specific.
> >
> > Tested on the Arm FVP RevC model [2] and Intel Raptor Lake.
> >
> > [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58074a0fce66
> > [2]: https://developer.arm.com/Tools%20and%20Software/Fixed%20Virtual%20Platforms
> >
> > Signed-off-by: James Clark <james.clark@xxxxxxxxxx>
>
> Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx>
>
> Thanks,
> Ian

Hi Arnaldo,

If you have a chance can you take this one please. It still applies 
cleanly to perf-tools-next.

Thanks
James

> > ---
> > James Clark (3):
> >        perf test: Refactor brstack test
> >        perf test: Add syscall and address tests to brstack test
> >        perf test: Extend branch stack sampling test for Arm64 BRBE
> >
> >   tools/perf/tests/builtin-test.c        |   1 +
> >   tools/perf/tests/shell/test_brstack.sh | 106 ++++++++++++++++++++++++++++++---
> >   tools/perf/tests/tests.h               |   1 +
> >   tools/perf/tests/workloads/Build       |   2 +
> >   tools/perf/tests/workloads/traploop.c  |  31 ++++++++++
> >   5 files changed, 132 insertions(+), 9 deletions(-)
> > ---
> > base-commit: 6235ce77749f45cac27f630337e2fdf04e8a6c73
> > change-id: 20250811-james-brbe-test-f5a20dffd734
> >
> > Best regards,
> > --
> > James Clark <james.clark@xxxxxxxxxx>