Re: [RFC patch 8/9] selftests/resctrl: Add support for HiSilicon MBM/MBA test

[wuyifan]

Hi Reinette,

On 3/23/2026 11:52 PM, Reinette Chatre wrote:
> Hi Yifan,
>
> On 3/23/26 2:19 AM, wuyifan wrote:
> > Hi Reinette,
> >
> > On 3/13/2026 5:01 AM, Reinette Chatre wrote:
> > > Which baseline exposes MB_MON in resctrl?
> > >
> > > Reinette
> > In the MPAM architecture reference manual, the memory-system component
> > includes the cache and memory channel controller, among others. The memory
> > channel controller can implement a memory bandwidth usage monitor.
> > I noticed that arm_mpam maps other classes to l3 in the resctrl glue code,
> > so I will fix this in the next version.
> Were these tests written against a spec as opposed to the actual MPAM enabling
> code? How could it have been tested?
>
> Reinette
Oh, I should add that the current Linux arm_mpam resctrl glue code is
still under review and has not been merged. Therefore, this RFC is based
on the Linux distribution OS test, so please ignore this issue. I will
remove this in the next version.

Regards,
Yifan Wu