Re: [PATCH v5 0/5] arm_mpam: resctrl: Counter Assignment (ABMC)

[Ben Horgan]

Hi Gavin,

On 7/15/26 06:44, Gavin Shan wrote:
> On 7/8/26 2:24 AM, Ben Horgan wrote:
>> Version 5 of this series addresses a few review comments but is pretty
>> similar to v4. The precursors in x86/cache have been merged so there is no
>> longer a need for this to go through there. It's likely easiest if this
>> goes through arm64.
>>
>> This series adds support for memory bandwidth monitoring. Counter assignment
>> will be used for all platforms with memory bandwidth monitors rather than just
>> those with insufficient counters as originally proposed.

> 
> The tests on NVidia's grace-hopper machine looks good: (a) no error or warning is seen
> from the kunit-tests; (b) L3 cache partitioning and MBW (soft) limiting aren't broken,
> still working to me; (c) The counter 'mbm_total_bytes' can be assigned to newly created
> group and it gets increased when workload runs in the group.
> 
> Tested-by: Gavin Shan <gshan@xxxxxxxxxx>

Thanks for the testing and reviews.

Ben

> 
> Thanks,
> Gavin
>