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 writtento 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: internel 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
270 What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1}
276 These files exist in every CPU's cache/index3 directory. Each
290 What: /sys/devices/system/cpu/cpufreq/boost
296 Boosting allows the CPU and the firmware to run at a frequency
303 What: /sys/devices/system/cpu/cpu#/crash_notes
304 /sys/devices/system/cpu/cpu#/crash_notes_size
310 note of cpu#.
312 crash_notes_size: size of the note of cpu#.
315 What: /sys/devices/system/cpu/intel_pstate/max_perf_pct
316 /sys/devices/system/cpu/intel_pstate/min_perf_pct
317 /sys/devices/system/cpu/intel_pstate/no_turbo
339 What: /sys/devices/system/cpu/cpu*/cache/index*/<set_of_attributes_mentioned_below>
343 Description: Parameters for the CPU cache attributes
376 logical cpu mask containing the list of cpus sharing
401 What: /sys/devices/system/cpu/cpu*/cache/index*/id
416 What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats
417 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat
418 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat
419 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/unthrottle
420 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/powercap
421 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overtemp
422 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/supply_fault
423 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overcurrent
424 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset
431 'cpuX/cpufreq/throttle_stats' directory contains the CPU frequency
432 throttle stat attributes for the chip. The throttle stats of a cpu
451 frequency is throttled due to 'CPU Over Temperature'.
466 What: /sys/devices/system/cpu/cpufreq/policyX/throttle_stats
467 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/turbo_stat
468 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/sub_turbo_stat
469 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/unthrottle
470 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/powercap
471 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overtemp
472 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/supply_fault
473 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overcurrent
474 /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/occ_reset
482 the /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats directory and
485 What: /sys/devices/system/cpu/cpuX/regs/
486 /sys/devices/system/cpu/cpuX/regs/identification/
487 /sys/devices/system/cpu/cpuX/regs/identification/midr_el1
488 /sys/devices/system/cpu/cpuX/regs/identification/revidr_el1
491 Description: AArch64 CPU registers
493 'identification' directory exposes the CPU ID registers for
494 identifying model and revision of the CPU.
496 What: /sys/devices/system/cpu/cpu#/cpu_capacity
501 cpu_capacity: capacity of cpu#.
503 What: /sys/devices/system/cpu/vulnerabilities
504 /sys/devices/system/cpu/vulnerabilities/meltdown
505 /sys/devices/system/cpu/vulnerabilities/spectre_v1
506 /sys/devices/system/cpu/vulnerabilities/spectre_v2
507 /sys/devices/system/cpu/vulnerabilities/spec_store_bypass
508 /sys/devices/system/cpu/vulnerabilities/l1tf
509 /sys/devices/system/cpu/vulnerabilities/mds
510 /sys/devices/system/cpu/vulnerabilities/srbds
511 /sys/devices/system/cpu/vulnerabilities/tsx_async_abort
512 /sys/devices/system/cpu/vulnerabilities/itlb_multihit
513 /sys/devices/system/cpu/vulnerabilities/mmio_stale_data
514 /sys/devices/system/cpu/vulnerabilities/retbleed
517 Description: Information about CPU vulnerabilities
519 The files are named after the code names of CPU
524 "Not affected" CPU is not affected by the vulnerability
525 "Vulnerable" CPU is affected and no mitigation in effect
526 "Mitigation: $M" CPU is affected and mitigation $M is in effect
531 What: /sys/devices/system/cpu/smt
532 /sys/devices/system/cpu/smt/active
533 /sys/devices/system/cpu/smt/control
547 "notsupported" SMT is not supported by the CPU
555 What: /sys/devices/system/cpu/cpu#/power/energy_perf_bias
560 EPB for the given CPU in a sliding scale 0 - 15, where a value
564 In order to change the EPB value for the CPU, write either
573 What: /sys/devices/system/cpu/umwait_control
574 /sys/devices/system/cpu/umwait_control/enable_c02
575 /sys/devices/system/cpu/umwait_control/max_time
591 in TSC-quanta that the CPU can reside in either C0.1
596 What: /sys/devices/system/cpu/svm
606 What: /sys/devices/system/cpu/cpuX/purr
609 Description: PURR ticks for this CPU since the system boot.
613 resources used by the CPU thread. The contents of this
617 What: /sys/devices/system/cpu/cpuX/spurr
620 Description: SPURR ticks for this CPU since the system boot.
624 invariant estimate of the resources used by the CPU
629 What: /sys/devices/system/cpu/cpuX/idle_purr
637 What: /sys/devices/system/cpu/cpuX/idle_spurr