mirror of
https://github.com/liberatedsystems/openCom-Companion.git
synced 2024-11-22 21:40:36 +01:00
117 lines
3.4 KiB
Python
117 lines
3.4 KiB
Python
'''
|
|
Module of Linux API for plyer.cpu.
|
|
'''
|
|
|
|
from os.path import join
|
|
from os import environ, listdir
|
|
from subprocess import Popen, PIPE
|
|
from plyer.facades import CPU
|
|
from plyer.utils import whereis_exe
|
|
|
|
|
|
class LinuxCPU(CPU):
|
|
'''
|
|
Implementation of Linux CPU API.
|
|
'''
|
|
|
|
def _sockets(self):
|
|
# physical CPU sockets (or slots) on motherboard
|
|
sockets = [] # list of CPU ids from kernel
|
|
|
|
# open Linux kernel data file for CPU
|
|
with open('/proc/cpuinfo', 'rb') as fle:
|
|
lines = fle.readlines()
|
|
|
|
# go through the lines and obtain physical CPU ids
|
|
for line in lines:
|
|
line = line.decode('utf-8')
|
|
if 'physical id' not in line:
|
|
continue
|
|
cpuid = line.split(':')[1].strip()
|
|
sockets.append(cpuid)
|
|
|
|
# total sockets is the length of unique CPU ids from kernel
|
|
sockets = len(set(sockets))
|
|
return sockets
|
|
|
|
def _physical(self):
|
|
# cores
|
|
physical = [] # list of CPU ids from kernel
|
|
|
|
# open Linux kernel data file for CPU
|
|
with open('/proc/cpuinfo', 'rb') as fle:
|
|
lines = fle.readlines()
|
|
|
|
# go through the lines and obtain CPU core ids
|
|
for line in lines:
|
|
line = line.decode('utf-8')
|
|
if 'core id' not in line:
|
|
continue
|
|
cpuid = line.split(':')[1].strip()
|
|
physical.append(cpuid)
|
|
|
|
# total cores (socket * core per socket)
|
|
# is the length of unique CPU core ids from kernel
|
|
physical = len(set(physical))
|
|
return physical
|
|
|
|
def _logical(self):
|
|
# cores * threads
|
|
logical = None
|
|
old_lang = environ.get('LANG', '')
|
|
environ['LANG'] = 'C'
|
|
|
|
_logical = Popen(['nproc', '--all'], stdout=PIPE)
|
|
output = _logical.communicate()[0].decode('utf-8').strip()
|
|
if output:
|
|
logical = int(output)
|
|
|
|
environ['LANG'] = old_lang
|
|
return logical
|
|
|
|
def _cache(self):
|
|
values = {key: 0 for key in ('L1', 'L2', 'L3')}
|
|
cpu_path = join('/sys', 'devices', 'system', 'cpu')
|
|
|
|
# get present cores from kernel device
|
|
with open(join(cpu_path, 'present')) as fle:
|
|
present = fle.read().decode('utf-8')
|
|
present = present.strip().split('-')
|
|
|
|
if len(present) == 2:
|
|
present = range(int(present[1]) + 1)
|
|
else:
|
|
present = [present[0]]
|
|
|
|
cores = ['cpu{}'.format(i) for i in present]
|
|
for core in cores:
|
|
indicies = [
|
|
# get 'indexN' files from 'cache' folder assuming
|
|
# the filename is in range index0 to index99
|
|
# in case a wild 'index_whatevercontent' file appears
|
|
fle for fle in listdir(join(cpu_path, core, 'cache'))
|
|
if fle.startswith('index') and len(fle) <= len('index') + 2
|
|
]
|
|
|
|
for index in indicies:
|
|
index_type = join(cpu_path, core, 'cache', index, 'level')
|
|
with open(index_type, 'rb') as fle:
|
|
cache_level = fle.read().decode('utf-8').strip()
|
|
values['L{}'.format(cache_level)] += 1
|
|
return values
|
|
|
|
@staticmethod
|
|
def _numa():
|
|
return
|
|
|
|
|
|
def instance():
|
|
'''
|
|
Instance for facade proxy.
|
|
'''
|
|
import sys
|
|
if whereis_exe('nproc'):
|
|
return LinuxCPU()
|
|
sys.stderr.write("nproc not found.")
|
|
return CPU()
|