Re: [PATCH v18 25/33] fs/resctrl: Provide interface to update the event configurations

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Hi Babu,

On 9/5/25 2:34 PM, Babu Moger wrote:
> When "mbm_event" counter assignment mode is enabled, users can modify
> the event configuration by writing to the 'event_filter' resctrl file.
> The event configurations for mbm_event mode are located in
> /sys/fs/resctrl/info/L3_MON/event_configs/.
> 
> Update the assignments of all CTRL_MON and MON resource groups when the
> event configuration is modified.
> 
> Example:
> $ mount -t resctrl resctrl /sys/fs/resctrl
> 
> $ cd /sys/fs/resctrl/
> 
> $ cat info/L3_MON/event_configs/mbm_local_bytes/event_filter
>   local_reads,local_non_temporal_writes,local_reads_slow_memory
> 
> $ echo "local_reads,local_non_temporal_writes" >
>   info/L3_MON/event_configs/mbm_total_bytes/event_filter
> 
> $ cat info/L3_MON/event_configs/mbm_total_bytes/event_filter
>   local_reads,local_non_temporal_writes
> 
> Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
> ---

Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>

Reinette





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