2025-05-15 16:58:45 +00:00
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config RESCTRL_FS
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bool "CPU Resource Control Filesystem (resctrl)"
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depends on ARCH_HAS_CPU_RESCTRL
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select KERNFS
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select PROC_CPU_RESCTRL if PROC_FS
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help
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Some architectures provide hardware facilities to group tasks and
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monitor and control their usage of memory system resources such as
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caches and memory bandwidth. Examples of such facilities include
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Intel's Resource Director Technology (Intel(R) RDT) and AMD's
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Platform Quality of Service (AMD QoS).
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If your system has the necessary support and you want to be able to
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assign tasks to groups and manipulate the associated resource
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monitors and controls from userspace, say Y here to get a mountable
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'resctrl' filesystem that lets you do just that.
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If nothing mounts or prods the 'resctrl' filesystem, resource
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controls and monitors are left in a quiescent, permissive state.
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On architectures where this can be disabled independently, it is
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safe to say N.
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2025-05-15 16:58:54 +00:00
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See <file:Documentation/filesystems/resctrl.rst> for more information.
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2025-05-15 16:58:45 +00:00
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config RESCTRL_FS_PSEUDO_LOCK
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bool
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depends on RESCTRL_FS
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help
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Software mechanism to pin data in a cache portion using
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micro-architecture specific knowledge.
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config RESCTRL_RMID_DEPENDS_ON_CLOSID
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bool
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depends on RESCTRL_FS
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help
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Enabled by the architecture when the RMID values depend on the CLOSID.
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This causes the CLOSID allocator to search for CLOSID with clean
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RMID.
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