Re: [PATCH v14 32/32] x86,fs/resctrl: Update documentation for telemetry events

[Reinette Chatre]

Hi Tony,

On 11/24/25 10:54 AM, Tony Luck wrote:
> @@ -484,6 +483,25 @@ with the following files:
>  		bytes) at which a previously used LLC_occupancy
>  		counter can be considered for re-use.
>  
> +If telemetry monitoring is available there will be a "PERF_PKG_MON" directory
> +with the following files:
> +
> +"num_rmids":
> +		The number of RMIDs for telemetry monitoring events. By default,
> +		resctrl will not enable telemetry events of a particular type
> +		("perf" or "energy") if the number of RMIDs that can be tracked
> +		concurrently for that type is lower than the total number of
> +		RMIDs supported by that type. The user can force-enable each
> +		type of telemetry events with the "rdt=" boot command line
> +		option, but this may reduce the number of monitoring groups that
> +		can be created.

v14 changed implementation to no longer disable all events at level of the type.

Reinette