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SubjectRe: [PATCH 0/7] selftests/resctrl: Add resctrl selftest
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Hi Fenghua,


On 10/16/2018 11:56 AM, Fenghua Yu wrote:
> With more and more resctrl features are being added by Intel, AMD
> and ARM, a test tool is becoming more and more useful to validate
> that both hardware and software functionalities work as expected.

I like the initiative here. It is always good to have a single code base.

One question. I see that there is a tool at
https://github.com/intel/intel-cmt-cat to test and verify the
functionality of resctrl feature. I also see some of the distros have this
tool already. Is this tool going to replace intel-cmt-cat? I have not
looked at the patches closely yet.

>
> We introduce resctrl selftest to cover resctrl features on both
> X86 and ARM architectures. It first implements MBM (Memory Bandwidth
> Monitoring) and MBA (Memory Bandwidth Allocation) tests. We can enhance
> the selftest tool to include more functionality tests in future.
>
> The tests are in tools/testing/selftests/resctrl in order to have
> generic test code for all architectures.
>
> Arshiya Hayatkhan Pathan (2):
> selftests/resctrl: Add mbm test
> selftests/resctrl: Add mba test
>
> Fenghua Yu (1):
> selftests/resctrl: Add the test in MAINTAINERS
>
> Sai Praneeth Prakhya (4):
> selftests/resctrl: Add basic resctrl file system operations and data
> selftests/resctrl: Read memory bandwidth from perf IMC counter and
> from resctrl file system
> selftests/resctrl: Add callback to start a benchmark
> selftests/resctrl: Add built in benchmark
>
> MAINTAINERS | 1 +
> tools/testing/selftests/resctrl/Makefile | 16 ++
> tools/testing/selftests/resctrl/fill_buf.c | 178 ++++++++++++
> tools/testing/selftests/resctrl/mba.c | 144 ++++++++++
> tools/testing/selftests/resctrl/mbm.c | 113 ++++++++
> tools/testing/selftests/resctrl/resctrl.c | 367 ++++++++++++++++++++++++
> tools/testing/selftests/resctrl/resctrl.h | 107 +++++++
> tools/testing/selftests/resctrl/resctrl_membw.c | 328 +++++++++++++++++++++
> tools/testing/selftests/resctrl/resctrl_membw.h | 49 ++++
> tools/testing/selftests/resctrl/resctrl_tests.c | 104 +++++++
> tools/testing/selftests/resctrl/resctrl_val.c | 192 +++++++++++++
> 11 files changed, 1599 insertions(+)
> create mode 100644 tools/testing/selftests/resctrl/Makefile
> create mode 100644 tools/testing/selftests/resctrl/fill_buf.c
> create mode 100644 tools/testing/selftests/resctrl/mba.c
> create mode 100644 tools/testing/selftests/resctrl/mbm.c
> create mode 100644 tools/testing/selftests/resctrl/resctrl.c
> create mode 100644 tools/testing/selftests/resctrl/resctrl.h
> create mode 100644 tools/testing/selftests/resctrl/resctrl_membw.c
> create mode 100644 tools/testing/selftests/resctrl/resctrl_membw.h
> create mode 100644 tools/testing/selftests/resctrl/resctrl_tests.c
> create mode 100644 tools/testing/selftests/resctrl/resctrl_val.c
>
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