py-cpuinfo 0.2.3

Get CPU info with pure Python 2 & 3

Py-cpuinfo gets CPU info with pure Python. Py-cpuinfo should work without any extra programs or libraries, beyond what your OS provides. It does not require any compilation(C/C++, assembly, et cetera) to use. It works on Linux, OS X, Windows, BSD, Solaris, Cygwin, Haiku, and BeagleBone. It currently only works on X86 and some ARM CPUs.

These approaches are used for getting info:

1. Windows Registry (Windows)

2. /proc/cpuinfo (Linux)

3. sysctl (OS X)

4. dmesg (Unix/Linux)

5. isainfo and kstat (Solaris)

6. cpufreq-info (BeagleBone)

7. lscpu (Unix/Linux)

8. sysinfo (Haiku)

9. Querying the CPUID register (Intel X86 CPUs)

Run as a script

$ python cpuinfo/cpuinfo.py
Vendor ID: GenuineIntel
Hardware Raw:
Brand: Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz
Hz Advertised: 3.1000 GHz
Hz Actual: 3.0794 GHz
Hz Advertised Raw: (3100000000, 0)
Hz Actual Raw: (3079444000, 0)
Arch: X86_64
Bits: 64
Count: 4
Raw Arch String: x86_64
L2 Cache Size: 6144 KB
L2 Cache Line Size: 0
L2 Cache Associativity: 0
Stepping: 3
Model: 60
Family: 6
Processor Type: 0
Extended Model: 0
Extended Family: 0
Flags: apic, clflush, cmov, constant_tsc, cx8, de, fpu, fxsr, ht, lahf_lm,
lm, mca, mce, mmx, msr, mtrr, nopl, nx, pae, pat, pge, pni, pse, pse36,
rdtscp, rep_good, sep, sse, sse2, ssse3, syscall, tsc, vme

Run as a library

import cpuinfo

# Have the library pick the best method for getting your CPU info
info = cpuinfo.get_cpu_info()

# Or use /proc/cpuinfo
#info = cpuinfo.get_cpu_info_from_proc_cpuinfo()

# Or use the Windows registry
#info = cpuinfo.get_cpu_info_from_registry()

# Or use sysctl
#info = cpuinfo.get_cpu_info_from_sysctl()

# Or use CPU CPUID register
#info = cpuinfo.get_cpu_info_from_cpuid()

# Print some CPU values
print('Vendor ID: {0}'.format(info['vendor_id']))
print('Brand: {0}'.format(info['brand']))
print('Hz Advertised: {0}'.format(info['hz_advertised']))
print('Hz Actual: {0}'.format(info['hz_actual']))
print('Hz Advertised Raw: {0}'.format(info['hz_advertised_raw']))
print('Hz Actual Raw: {0}'.format(info['hz_actual_raw']))
print('Arch: {0}'.format(info['arch']))
print('Bits: {0}'.format(info['bits']))
print('Count: {0}'.format(info['count']))
print('Flags: {0}'.format(', '.join(info['flags'])))

Bugs and Corrections

Please report a Bug if you suspect any of this information is wrong.

If py-cpuinfo does not work on your machine, run the script:

python tools/get_system_info.py

and create bug report with the generated “system_info.txt” file.