| config RESCTRL_FS |
| bool "CPU Resource Control Filesystem (resctrl)" |
| depends on ARCH_HAS_CPU_RESCTRL |
| select KERNFS |
| select PROC_CPU_RESCTRL if PROC_FS |
| help |
| Some architectures provide hardware facilities to group tasks and |
| monitor and control their usage of memory system resources such as |
| caches and memory bandwidth. Examples of such facilities include |
| Intel's Resource Director Technology (Intel(R) RDT) and AMD's |
| Platform Quality of Service (AMD QoS). |
| |
| If your system has the necessary support and you want to be able to |
| assign tasks to groups and manipulate the associated resource |
| monitors and controls from userspace, say Y here to get a mountable |
| 'resctrl' filesystem that lets you do just that. |
| |
| If nothing mounts or prods the 'resctrl' filesystem, resource |
| controls and monitors are left in a quiescent, permissive state. |
| |
| On architectures where this can be disabled independently, it is |
| safe to say N. |
| |
| See <file:Documentation/filesystems/resctrl.rst> for more information. |
| |
| config RESCTRL_FS_PSEUDO_LOCK |
| bool |
| depends on RESCTRL_FS |
| help |
| Software mechanism to pin data in a cache portion using |
| micro-architecture specific knowledge. |
| |
| config RESCTRL_RMID_DEPENDS_ON_CLOSID |
| bool |
| depends on RESCTRL_FS |
| help |
| Enabled by the architecture when the RMID values depend on the CLOSID. |
| This causes the CLOSID allocator to search for CLOSID with clean |
| RMID. |
