Hi Babu, On 4/21/25 3:43 PM, Babu Moger wrote: > # Linux Implementation > > Feature adds following interface files when the resctrl "io_alloc" feature is > supported on L3 resource: > > /sys/fs/resctrl/info/L3/io_alloc: Report the feature status. Enable/disable the > feature by writing to the interface. > > /sys/fs/resctrl/info/L3/io_alloc_cbm: List the Capacity Bit Masks (CBMs) available > for I/O devices when io_alloc feature is enabled. > Configure the CBM by writing to the interface. > > # Examples: > > a. Check if io_alloc feature is available > #mount -t resctrl resctrl /sys/fs/resctrl/ > > # cat /sys/fs/resctrl/info/L3/io_alloc > disabled > > b. Enable the io_alloc feature. > > # echo 1 > /sys/fs/resctrl/info/L3/io_alloc > # cat /sys/fs/resctrl/info/L3/io_alloc > enabled > > c. Check the CBM values for the io_alloc feature. > > # cat /sys/fs/resctrl/info/L3/io_alloc_cbm > L3:0=ffff;1=ffff > > d. Change the CBM value for the domain 1: > # echo L3:1=FF > /sys/fs/resctrl/info/L3/io_alloc_cbm > > # cat /sys/fs/resctrl/info/L3/io_alloc_cbm > L3:0=ffff;1=00ff > > d. Disable io_alloc feature and exit. > > # echo 0 > /sys/fs/resctrl/info/L3/io_alloc > # cat /sys/fs/resctrl/info/L3/io_alloc > disabled > > #umount /sys/fs/resctrl/ >
