Hi Babu, On 1/9/2023 8:44 AM, Babu Moger wrote: > The event configuration for mbm_total_bytes can be changed by the user by > writing to the file /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config. > > The event configuration settings are domain specific and affect all the > CPUs in the domain. > > Following are the types of events supported: > > ==== =========================================================== > Bits Description > ==== =========================================================== > 6 Dirty Victims from the QOS domain to all types of memory > 5 Reads to slow memory in the non-local NUMA domain > 4 Reads to slow memory in the local NUMA domain > 3 Non-temporal writes to non-local NUMA domain > 2 Non-temporal writes to local NUMA domain > 1 Reads to memory in the non-local NUMA domain > 0 Reads to memory in the local NUMA domain > ==== =========================================================== > > For example: > To change the mbm_total_bytes to count only reads on domain 0, the bits > 0, 1, 4 and 5 needs to be set, which is 110011b (in hex 0x33). Run the > command. > $echo 0=0x33 > /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config > > To change the mbm_total_bytes to count all the slow memory reads on > domain 1, the bits 4 and 5 needs to be set which is 110000b (in hex 0x30). > Run the command. > $echo 1=0x30 > /sys/fs/resctrl/info/L3_MON/mbm_total_bytes_config > > Signed-off-by: Babu Moger <babu.moger@xxxxxxx> Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx> Thank you Reinette
