Display information about the CPU architecture.
lscpu [options]
Gathers CPU information from /proc/cpuinfo and /sys/devices/system/cpu/
and displays it as key-value pairs (default), per-CPU table (--extended),
or cache detail table (--caches).
Source Purpose
/proc/cpuinfoCPU model, vendor, family, flags, bugs, bogomips /sys/devices/system/cpu/onlineOnline CPU list /sys/devices/system/cpu/offlineOffline CPU list /sys/devices/system/cpu/cpu<N>/topology/core_idPhysical core ID /sys/devices/system/cpu/cpu<N>/topology/physical_package_idSocket ID /sys/devices/system/cpu/cpu<N>/cache/index<M>/levelCache level /sys/devices/system/cpu/cpu<N>/cache/index<M>/typeCache type /sys/devices/system/cpu/cpu<N>/cache/index<M>/sizeCache size /sys/devices/system/cpu/cpu<N>/cache/index<M>/shared_cpu_listCPUs sharing cache /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_max_freqMax frequency /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_min_freqMin frequency /sys/devices/system/node/node<N>/cpulistNUMA node CPU mapping /sys/devices/system/cpu/vulnerabilities/*CPU vulnerability status
Option Description
-e, --extended[=list]Extended per-CPU table -C, --caches[=list]Cache information table -J, --jsonJSON output -B, --bytesShow sizes in bytes -h, --helpDisplay help -V, --versionDisplay version
Architecture, CPU op-mode(s), Address sizes, Byte Order
CPU(s), On-line/Off-line CPU(s) list
Vendor ID, Model name, CPU family, Model, Stepping
Thread(s) per core, Core(s) per socket, Socket(s)
CPU max/min MHz, BogoMIPS
Flags, Virtualization
L1d/L1i/L2/L3 cache (with instance count)
NUMA node(s), NUMA node CPU mapping
Vulnerabilities
Code Meaning
0 Success 1 Failure
-e extended per-CPU table-C cache detail table-p parsable output-J JSON output-s sysroot-x hex masks-y physical IDs--hierarchic subsections-a/-b/-c online/offline filtering--output-all--raw