83 lines
1.8 KiB
Python
Executable File
83 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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from ctypes import CDLL
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from time import sleep
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from sys import argv
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"""
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Execute the command
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find /sys/fs/cgroup -name memory.pressure
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to find available memory.pressue files (except /proc/pressure/memory).
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(actual for cgroup2)
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"""
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if len(argv) > 1:
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psi_path = argv[1]
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else:
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psi_path = '/proc/pressure/memory'
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def mlockall():
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MCL_CURRENT = 1
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MCL_FUTURE = 2
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MCL_ONFAULT = 4
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libc = CDLL('libc.so.6', use_errno=True)
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result = libc.mlockall(
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MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT
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)
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if result != 0:
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result = libc.mlockall(
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MCL_CURRENT | MCL_FUTURE
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)
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if result != 0:
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print('WARNING: cannot lock all memory')
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else:
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pass
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else:
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pass
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mlockall()
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def psi_path_to_metrics(psi_path):
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with open(psi_path) as f:
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psi_list = f.readlines()
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# print(psi_list)
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some_list, full_list = psi_list[0].split(' '), psi_list[1].split(' ')
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#print(some_list, full_list)
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some_avg10 = some_list[1].split('=')[1]
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some_avg60 = some_list[2].split('=')[1]
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some_avg300 = some_list[3].split('=')[1]
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full_avg10 = full_list[1].split('=')[1]
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full_avg60 = full_list[2].split('=')[1]
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full_avg300 = full_list[3].split('=')[1]
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return (some_avg10, some_avg60, some_avg300,
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full_avg10, full_avg60, full_avg300)
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print('Path to PSI file: {}\n'.format(psi_path))
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print(' avg10 avg60 avg300 avg10 avg60 avg300')
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while True:
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(some_avg10, some_avg60, some_avg300,
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full_avg10, full_avg60, full_avg300) = psi_path_to_metrics(psi_path)
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print('some {} {} {} | full {} {} {}'.format(
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some_avg10.rjust(6),
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some_avg60.rjust(6),
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some_avg300.rjust(6),
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full_avg10.rjust(6),
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full_avg60.rjust(6),
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full_avg300.rjust(6)))
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sleep(2)
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