py-cpuinfo · Python Simple Repository Browser

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Author: Matthew Brennan Jones

Classifiers

Development Status

4 - Beta

Topic

Utilities

License

OSI Approved :: MIT License

A module for getting CPU info with 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. Works on Linux, OS X, Windows, BSD, Solaris, Cygwin, and Haiku.

These approaches are used for getting info:

Windows Registry
/proc/cpuinfo
sysctl
dmesg
isainfo and psrinfo
Querying x86 CPUID register

Run as a script

$ python cpuinfo.py
python cpuinfo.py
Vendor ID: GenuineIntel
Brand: Genuine Intel(R) CPU           T2050  @ 1.60GHz
Hz: 1.6000 GHz
Raw Hz: (1600000000, 0)
Arch: X86_32
Bits: 32
Count: 2
Raw Arch String: i686
L2 Cache Size: 2048 KB
L2 Cache Line Size: 0
L2 Cache Associativity: 0
Stepping: 8
Model: 14
Family: 6
Processor Type: 0
Extended Model: 0
Extended Family: 0
Flags: acpi, aperfmperf, apic, arch_perfmon, bts, clflush, cmov,
constant_tsc, cx8, de, dtherm, dts, est, fpu, fxsr, ht, mca, mce, mmx,
monitor, msr, mtrr, nx, pae, pbe, pdcm, pge, pni, pse, sep, ss, sse, sse2,
tm, tm2, tsc, vme, xtpr

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: {0}'.format(info['hz']))
print('Raw Hz: {0}'.format(info['raw_hz']))
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'])))

Alternate libraries, and how they differ from py-cpuinfo

Numpy: Great, but just wraps /proc/cpuinfo on unix, and the registry on Windows. Does not return flags on Windows. The results are different depending on the OS. Requires all of Numpy to be installed to use. Is missing new CPU flags like sse4 http://www.numpy.org/

PyCPUID: Elegant. But is missing many common CPU flags like 3dnow, ht, et cetera. Uses a C library that must be compiled. Is missing features like CPU MHz. Not Python 3 compatible. https://github.com/FlightDataServices/PyCPUID

cpuidpy: Written completly in C++. Requires a compile. Missing CPU flags and MHz. http://code.google.com/p/cpuidpy/

PyCPU: Uses a C library. Requires a compile. Not Python 3 compatible. http://screeniqsys.com/blog/utilities/pycpu/