diff options
| author | Babu Moger <babu.moger@amd.com> | 2025-09-05 16:34:12 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-09-15 12:16:11 +0200 |
| commit | 16ff6b038fb3b64aa033efdc95d673239610e1a6 (patch) | |
| tree | 416d33ca9479ebbd2d7fb947ce64a203cd989bb7 /Documentation/filesystems | |
| parent | 4d32c24a74f2c12ff440d381ba01de574f6631ce (diff) | |
fs/resctrl: Introduce interface to display number of free MBM counters
Introduce the "available_mbm_cntrs" resctrl file to display the number of
counters available for assignment in each domain when "mbm_event" mode is
enabled.
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/cover.1757108044.git.babu.moger@amd.com
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/resctrl.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/filesystems/resctrl.rst b/Documentation/filesystems/resctrl.rst index 4eb27530be6f..446736dbd97f 100644 --- a/Documentation/filesystems/resctrl.rst +++ b/Documentation/filesystems/resctrl.rst @@ -299,6 +299,17 @@ with the following files: # cat /sys/fs/resctrl/info/L3_MON/num_mbm_cntrs 0=32;1=32 +"available_mbm_cntrs": + The number of counters available for assignment in each domain when mbm_event + mode is enabled on the system. + + For example, on a system with 30 available [hardware] assignable counters + in each of its L3 domains: + :: + + # cat /sys/fs/resctrl/info/L3_MON/available_mbm_cntrs + 0=30;1=30 + "max_threshold_occupancy": Read/write file provides the largest value (in bytes) at which a previously used LLC_occupancy |