CONFIG_RESCTRL_FS: CPU Resource Control Filesystem (resctrl)

General informations

The Linux kernel configuration item CONFIG_RESCTRL_FS:

• prompt: CPU Resource Control Filesystem (resctrl)
• type: bool
• depends on: CONFIG_ARCH_HAS_CPU_RESCTRL
• defined in fs/resctrl/Kconfig
• found in Linux kernels: 6.16-rc+HEAD

Help text

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 Documentation/filesystems/resctrl.rst for more information.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb fs "resctrl" : CONFIG_RESCTRL_FS : fs/resctrl/rdtgroup.c # in 6.16-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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