128 lines
5.7 KiB
Plaintext
128 lines
5.7 KiB
Plaintext
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What: /sys/devices/system/cpu/dscr_default
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Date: 13-May-2014
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KernelVersion: v3.15.0
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Contact:
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Description: Writes are equivalent to writing to
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/sys/devices/system/cpu/cpuN/dscr on all CPUs.
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Reads return the last written value or 0.
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This value is not a global default: it is a way to set
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all per-CPU defaults at the same time.
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Values: 64 bit unsigned integer (bit field)
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What: /sys/devices/system/cpu/cpu[0-9]+/dscr
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Date: 13-May-2014
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KernelVersion: v3.15.0
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Contact:
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Description: Default value for the Data Stream Control Register (DSCR) on
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a CPU.
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This default value is used when the kernel is executing and
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for any process that has not set the DSCR itself.
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If a process ever sets the DSCR (via direct access to the
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SPR) that value will be persisted for that process and used
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on any CPU where it executes (overriding the value described
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here).
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If set by a process it will be inherited by child processes.
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Values: 64 bit unsigned integer (bit field)
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What: /sys/devices/system/cpu/cpuX/topology/physical_package_id
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Description: physical package id of cpuX. Typically corresponds to a physical
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socket number, but the actual value is architecture and platform
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dependent.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/die_id
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Description: the CPU die ID of cpuX. Typically it is the hardware platform's
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identifier (rather than the kernel's). The actual value is
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architecture and platform dependent.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/core_id
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Description: the CPU core ID of cpuX. Typically it is the hardware platform's
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identifier (rather than the kernel's). The actual value is
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architecture and platform dependent.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/cluster_id
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Description: the cluster ID of cpuX. Typically it is the hardware platform's
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identifier (rather than the kernel's). The actual value is
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architecture and platform dependent.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/book_id
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Description: the book ID of cpuX. Typically it is the hardware platform's
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identifier (rather than the kernel's). The actual value is
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architecture and platform dependent. it's only used on s390.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/drawer_id
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Description: the drawer ID of cpuX. Typically it is the hardware platform's
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identifier (rather than the kernel's). The actual value is
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architecture and platform dependent. it's only used on s390.
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Values: integer
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What: /sys/devices/system/cpu/cpuX/topology/core_cpus
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Description: internal kernel map of CPUs within the same core.
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(deprecated name: "thread_siblings")
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/core_cpus_list
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Description: human-readable list of CPUs within the same core.
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The format is like 0-3, 8-11, 14,17.
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(deprecated name: "thread_siblings_list").
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Values: decimal list.
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What: /sys/devices/system/cpu/cpuX/topology/package_cpus
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Description: internal kernel map of the CPUs sharing the same physical_package_id.
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(deprecated name: "core_siblings").
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/package_cpus_list
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Description: human-readable list of CPUs sharing the same physical_package_id.
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The format is like 0-3, 8-11, 14,17.
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(deprecated name: "core_siblings_list")
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Values: decimal list.
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What: /sys/devices/system/cpu/cpuX/topology/die_cpus
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Description: internal kernel map of CPUs within the same die.
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/ppin
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Description: per-socket protected processor inventory number
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Values: hexadecimal.
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What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list
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Description: human-readable list of CPUs within the same die.
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The format is like 0-3, 8-11, 14,17.
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Values: decimal list.
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What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus
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Description: internal kernel map of CPUs within the same cluster.
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus_list
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Description: human-readable list of CPUs within the same cluster.
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The format is like 0-3, 8-11, 14,17.
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Values: decimal list.
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What: /sys/devices/system/cpu/cpuX/topology/book_siblings
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Description: internal kernel map of cpuX's hardware threads within the same
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book_id. it's only used on s390.
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/book_siblings_list
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Description: human-readable list of cpuX's hardware threads within the same
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book_id.
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The format is like 0-3, 8-11, 14,17. it's only used on s390.
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Values: decimal list.
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What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings
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Description: internal kernel map of cpuX's hardware threads within the same
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drawer_id. it's only used on s390.
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Values: hexadecimal bitmask.
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What: /sys/devices/system/cpu/cpuX/topology/drawer_siblings_list
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Description: human-readable list of cpuX's hardware threads within the same
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drawer_id.
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The format is like 0-3, 8-11, 14,17. it's only used on s390.
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Values: decimal list.
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