Lines Matching full:cpu
1 What: /sys/devices/system/cpu/
5 A collection of both global and individual CPU attributes
7 Individual CPU attributes are contained in subdirectories
8 named by the kernel's logical CPU number, e.g.:
10 /sys/devices/system/cpu/cpu#/
12 What: /sys/devices/system/cpu/kernel_max
13 /sys/devices/system/cpu/offline
14 /sys/devices/system/cpu/online
15 /sys/devices/system/cpu/possible
16 /sys/devices/system/cpu/present
19 Description: CPU topology files that describe kernel limits related to
22 kernel_max: the maximum cpu index allowed by the kernel
40 What: /sys/devices/system/cpu/probe
41 /sys/devices/system/cpu/release
44 Description: Dynamic addition and removal of CPU's. This is not hotplug
45 removal, this is meant complete removal/addition of the CPU
48 probe: writes to this file will dynamically add a CPU to the
49 system. Information written to the file to add CPU's is
52 release: writes to this file dynamically remove a CPU from
53 the system. Information written to the file to remove CPU's
56 What: /sys/devices/system/cpu/cpu#/node
59 Description: Discover NUMA node a CPU belongs to
67 /sys/devices/system/cpu/cpu42/node2 -> ../../node/node2
70 What: /sys/devices/system/cpu/cpu#/topology/core_id
71 /sys/devices/system/cpu/cpu#/topology/core_siblings
72 /sys/devices/system/cpu/cpu#/topology/core_siblings_list
73 /sys/devices/system/cpu/cpu#/topology/physical_package_id
74 /sys/devices/system/cpu/cpu#/topology/thread_siblings
75 /sys/devices/system/cpu/cpu#/topology/thread_siblings_list
78 Description: CPU topology files that describe a logical CPU's relationship
81 One cpu# directory is created per logical CPU in the system,
82 e.g. /sys/devices/system/cpu/cpu42/.
86 core_id: the CPU core ID of cpu#. Typically it is the
90 core_siblings: internal kernel map of cpu#'s hardware threads
93 core_siblings_list: human-readable list of the logical CPU
94 numbers within the same physical_package_id as cpu#.
96 physical_package_id: physical package id of cpu#. Typically
100 thread_siblings: internal kernel map of cpu#'s hardware
101 threads within the same core as cpu#
103 thread_siblings_list: human-readable list of cpu#'s hardware
104 threads within the same core as cpu#
109 What: /sys/devices/system/cpu/cpuidle/available_governors
110 /sys/devices/system/cpu/cpuidle/current_driver
111 /sys/devices/system/cpu/cpuidle/current_governor
112 /sys/devices/system/cpu/cpuidle/current_governer_ro
138 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/name
139 /sys/devices/system/cpu/cpuX/cpuidle/stateN/latency
140 /sys/devices/system/cpu/cpuX/cpuidle/stateN/power
141 /sys/devices/system/cpu/cpuX/cpuidle/stateN/time
142 /sys/devices/system/cpu/cpuX/cpuidle/stateN/usage
143 /sys/devices/system/cpu/cpuX/cpuidle/stateN/above
144 /sys/devices/system/cpu/cpuX/cpuidle/stateN/below
149 The directory /sys/devices/system/cpu/cpuX/cpuidle contains per
150 logical CPU specific cpuidle information for each online cpu X.
169 observed CPU idle duration was too short for it
173 observed CPU idle duration was too long for it
177 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/desc
185 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/disable
198 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/default_status
205 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/residency
211 time (in microseconds) this cpu should spend in this idle state
214 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/s2idle/
224 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/s2idle/time
229 Total time spent by the CPU in suspend-to-idle (with scheduler
232 What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/s2idle/usage
237 Total number of times this state has been requested by the CPU
240 What: /sys/devices/system/cpu/cpu#/cpufreq/*
248 the CPU consumes.
252 See files in Documentation/cpu-freq/ for more information.
255 What: /sys/devices/system/cpu/cpu#/cpufreq/freqdomain_cpus
258 Description: Discover CPUs in the same CPU frequency coordination domain
271 What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
277 These files exist in every CPU's cache/index3 directory. Each
291 What: /sys/devices/system/cpu/cpufreq/boost
297 Boosting allows the CPU and the firmware to run at a frequency
304 What: /sys/devices/system/cpu/cpu#/crash_notes
305 /sys/devices/system/cpu/cpu#/crash_notes_size
311 note of cpu#.
313 crash_notes_size: size of the note of cpu#.
316 What: /sys/devices/system/cpu/intel_pstate/max_perf_pct
317 /sys/devices/system/cpu/intel_pstate/min_perf_pct
318 /sys/devices/system/cpu/intel_pstate/no_turbo
340 What: /sys/devices/system/cpu/cpu*/cache/index*/<set_of_attributes_mentioned_below>
344 Description: Parameters for the CPU cache attributes
377 logical cpu mask containing the list of cpus sharing
402 What: /sys/devices/system/cpu/cpu*/cache/index*/id
417 What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats
418 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat
419 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat
420 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/unthrottle
421 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/powercap
422 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overtemp
423 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/supply_fault
424 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overcurrent
425 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset
432 'cpuX/cpufreq/throttle_stats' directory contains the CPU frequency
433 throttle stat attributes for the chip. The throttle stats of a cpu
452 frequency is throttled due to 'CPU Over Temperature'.
467 What: /sys/devices/system/cpu/cpufreq/policyX/throttle_stats
468 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/turbo_stat
469 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/sub_turbo_stat
470 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/unthrottle
471 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/powercap
472 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overtemp
473 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/supply_fault
474 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overcurrent
475 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/occ_reset
483 the /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats directory and
486 What: /sys/devices/system/cpu/cpuX/regs/
487 /sys/devices/system/cpu/cpuX/regs/identification/
488 /sys/devices/system/cpu/cpuX/regs/identification/midr_el1
489 /sys/devices/system/cpu/cpuX/regs/identification/revidr_el1
492 Description: AArch64 CPU registers
494 'identification' directory exposes the CPU ID registers for
495 identifying model and revision of the CPU.
497 What: /sys/devices/system/cpu/aarch32_el0
502 /sys/devices/system/cpu/{offline,online,possible,present} is used.
506 What: /sys/devices/system/cpu/cpu#/cpu_capacity
511 cpu_capacity: capacity of cpu#.
513 What: /sys/devices/system/cpu/vulnerabilities
514 /sys/devices/system/cpu/vulnerabilities/meltdown
515 /sys/devices/system/cpu/vulnerabilities/spectre_v1
516 /sys/devices/system/cpu/vulnerabilities/spectre_v2
517 /sys/devices/system/cpu/vulnerabilities/spec_store_bypass
518 /sys/devices/system/cpu/vulnerabilities/l1tf
519 /sys/devices/system/cpu/vulnerabilities/mds
520 /sys/devices/system/cpu/vulnerabilities/srbds
521 /sys/devices/system/cpu/vulnerabilities/tsx_async_abort
522 /sys/devices/system/cpu/vulnerabilities/itlb_multihit
525 Description: Information about CPU vulnerabilities
527 The files are named after the code names of CPU
532 "Not affected" CPU is not affected by the vulnerability
533 "Vulnerable" CPU is affected and no mitigation in effect
534 "Mitigation: $M" CPU is affected and mitigation $M is in effect
539 What: /sys/devices/system/cpu/smt
540 /sys/devices/system/cpu/smt/active
541 /sys/devices/system/cpu/smt/control
555 "notsupported" SMT is not supported by the CPU
563 What: /sys/devices/system/cpu/cpu#/power/energy_perf_bias
568 EPB for the given CPU in a sliding scale 0 - 15, where a value
572 In order to change the EPB value for the CPU, write either
581 What: /sys/devices/system/cpu/umwait_control
582 /sys/devices/system/cpu/umwait_control/enable_c02
583 /sys/devices/system/cpu/umwait_control/max_time
599 in TSC-quanta that the CPU can reside in either C0.1
604 What: /sys/devices/system/cpu/svm
614 What: /sys/devices/system/cpu/cpuX/purr
617 Description: PURR ticks for this CPU since the system boot.
621 resources used by the CPU thread. The contents of this
625 What: /sys/devices/system/cpu/cpuX/spurr
628 Description: SPURR ticks for this CPU since the system boot.
632 invariant estimate of the resources used by the CPU
637 What: /sys/devices/system/cpu/cpuX/idle_purr
645 What: /sys/devices/system/cpu/cpuX/idle_spurr
653 What: /sys/devices/system/cpu/cpuX/mte_tcf_preferred
660 be preferred when scheduling a task on that CPU. Possible