diff options
Diffstat (limited to 'Documentation/x86')
| -rw-r--r-- | Documentation/x86/intel_rdt_ui.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt index 1ad77b1e3e79..756fd76b78a6 100644 --- a/Documentation/x86/intel_rdt_ui.txt +++ b/Documentation/x86/intel_rdt_ui.txt @@ -10,18 +10,21 @@ This feature is enabled by the CONFIG_INTEL_RDT Kconfig and the X86 /proc/cpuinfo flag bits: RDT (Resource Director Technology) Allocation - "rdt_a" CAT (Cache Allocation Technology) - "cat_l3", "cat_l2" -CDP (Code and Data Prioritization ) - "cdp_l3" +CDP (Code and Data Prioritization ) - "cdp_l3", "cdp_l2" CQM (Cache QoS Monitoring) - "cqm_llc", "cqm_occup_llc" MBM (Memory Bandwidth Monitoring) - "cqm_mbm_total", "cqm_mbm_local" MBA (Memory Bandwidth Allocation) - "mba" To use the feature mount the file system: - # mount -t resctrl resctrl [-o cdp] /sys/fs/resctrl + # mount -t resctrl resctrl [-o cdp[,cdpl2]] /sys/fs/resctrl mount options are: "cdp": Enable code/data prioritization in L3 cache allocations. +"cdpl2": Enable code/data prioritization in L2 cache allocations. + +L2 and L3 CDP are controlled seperately. RDT features are orthogonal. A particular system may support only monitoring, only control, or both monitoring and control. |