Hello Babu,
I think you are still planning to upstream this patch series.
Do you have a timeline for posting v4? And when do you anticipate it being
merged?
I'd like to enable MBM/MBA tests for ARM arch (MPAM driver),
However, I foresee potential conflicts if this patch series is not merged.
I apologize for the inconvenience, I kindly request your attention to this
matter.
Hello James, Dave,
Have you already considered or made any plans to enable the MBM/MBA tests for
the MPAM driver?
Best regards,
Shaopeng TAN
> The MBM (Memory Bandwidth Monitoring) and MBA (Memory Bandwidth
> Allocation) features are not enabled for AMD systems. The reason was lack of
> perf counters to compare the resctrl test results.
>
> Starting with the commit
> 25e56847821f ("perf/x86/amd/uncore: Add memory controller support"), AMD
> now supports the UMC (Unified Memory Controller) perf events. These events
> can be used to compare the test results.
>
> This series adds the support to detect the UMC events and enable MBM/MBA
> tests for AMD systems.
>
> v3:
> Note: Based the series on top of latest kselftests/master
> 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (tag: v6.10-rc1).
>
> Also applied the patches from the series
>
> https://lore.kernel.org/lkml/[email protected].
> com/
>
> Separated the fix patch.
> Renamed the imc to just mc to make it generic.
> Changed the search string "uncore_imc_" and "amd_umc_"
> Changes related rebase to latest kselftest tree.
>
> v2: Changes.
> a. Rebased on top of tip/master (Apr 25, 2024)
> b. Addressed Ilpo comments except the one about close call.
> It seems more clear to keep READ and WRITE separate.
>
> https://lore.kernel.org/lkml/8e4badb7-6cc5-61f1-e041-d902209a90d5@linux.
> intel.com/
> c. Used ksft_perror call when applicable.
> d. Added vendor check for non contiguous CBM check.
>
> v1: https://lore.kernel.org/lkml/[email protected]/
>
>
> Babu Moger (4):
> selftests/resctrl: Rename variables and functions to generic names
> selftests/resctrl: Pass sysfs controller name of the vendor
> selftests/resctrl: Add support for MBM and MBA tests on AMD
> selftests/resctrl: Enable MBA/MBA tests on AMD
>
> tools/testing/selftests/resctrl/mba_test.c | 25 +-
> tools/testing/selftests/resctrl/mbm_test.c | 23 +-
> tools/testing/selftests/resctrl/resctrl.h | 2 +-
> tools/testing/selftests/resctrl/resctrl_val.c | 305 ++++++++++--------
> tools/testing/selftests/resctrl/resctrlfs.c | 2 +-
> 5 files changed, 191 insertions(+), 166 deletions(-)
>
> --
> 2.34.1
>
