Re: [PATCH v13 00/32] x86,fs/resctrl telemetry monitoring

Drew Fustini
2025-11-16T17:35:10Z

On Wed, Oct 29, 2025 at 09:20:43AM -0700, Tony Luck wrote:
> Patches based on v6.18-rc3
[snip]
>
> Background
> ----------
> On Intel systems that support per-RMID telemetry monitoring each logical
> processor keeps a local count for various events. When the
> MSR_IA32_PQR_ASSOC.RMID value for the logical processor changes (or when a
> two millisecond counter expires) these event counts are transmitted to
> an event aggregator on the same package as the processor together with
> the current RMID value. The event counters are reset to zero to begin
> counting again.

Do you have any suggestion of which Xeon parts I should be looking for
if I want to try out this feature?

I'm looking at bare metal hosting providers for an Intel server that I
can try out features like SNC and this. I look up the parts on ARK but
it shows yes/no for RDT which is not very specific. I'm hoping to do
something better than just hoping cpuinfo has what I want once the
machine is provisioned :)

Thanks,
Drew