add trash

This commit is contained in:
Alexey Avramov 2019-05-12 06:45:10 +09:00
parent b5fcefd83b
commit 2981ecd95c

117
trash/pt02 Executable file
View File

@ -0,0 +1,117 @@
#!/usr/bin/env python3
from ctypes import CDLL
from time import sleep
import os
"""
Execute the command
find /sys/fs/cgroup -name memory.pressure
to find available memory.pressue files (except /proc/pressure/memory).
(actual for cgroup2)
"""
psi_path = '/proc/pressure/memory'
def mlockall():
MCL_CURRENT = 1
MCL_FUTURE = 2
MCL_ONFAULT = 4
libc = CDLL('libc.so.6', use_errno=True)
result = libc.mlockall(
MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT
)
if result != 0:
result = libc.mlockall(
MCL_CURRENT | MCL_FUTURE
)
if result != 0:
print('WARNING: cannot lock all memory')
else:
pass
else:
pass
mlockall()
def psi_path_to_metrics(psi_path):
with open(psi_path) as f:
psi_list = f.readlines()
# print(psi_list)
some_list, full_list = psi_list[0].split(' '), psi_list[1].split(' ')
#print(some_list, full_list)
some_avg10 = some_list[1].split('=')[1]
some_avg60 = some_list[2].split('=')[1]
some_avg300 = some_list[3].split('=')[1]
full_avg10 = full_list[1].split('=')[1]
full_avg60 = full_list[1].split('=')[1]
full_avg300 = full_list[1].split('=')[1]
return (some_avg10, some_avg60, some_avg300,
full_avg10, full_avg60, full_avg300)
(some_avg10, some_avg60, some_avg300, full_avg10, full_avg60, full_avg300
) = psi_path_to_metrics(psi_path)
def cgroup2_root():
"""
"""
with open('/proc/mounts') as f:
for line in f:
if line.startswith('cgroup2 '):
return line[7:].rpartition(' cgroup2 ')[0]
i = cgroup2_root()
print(i)
def get_psi_mem_files(cgroup2_path):
"""
"""
path_list = []
for root, dirs, files in os.walk(cgroup2_path):
for file in files:
path = os.path.join(root, file)
if path.endswith('/memory.pressure'):
path_list.append(path)
return path_list
if i is not None:
print(get_psi_mem_files(i))