improve psi-monitor
This commit is contained in:
Alexey Avramov
parent
2738b80ff7
commit
e81fc9a824
214
pm
214
pm
@ -1,214 +0,0 @@
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#!/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, exit
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import os
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import logging
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"""
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--target /system.slice
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--period 2
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--log-file ./psi.log
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"""
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separate_log = True
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log_file = './psi-monitor.log'
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period = 2
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cpu_file = "./cpu"
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memory_file = "./memory"
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io_file = "./io"
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"""
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"""
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#
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try:
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target = argv[1] # '.'
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print('Set target to {}'.format(argv[1]))
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except IndexError:
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print('Set target to SYSTEM_WIDE to monitor /proc/pressure')
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target = 'SYSTEM_WIDE'
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# target = 'SYSTEM_WIDE'
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if target == 'SYSTEM_WIDE':
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cpu_file = "/proc/pressure/cpu"
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memory_file = "/proc/pressure/memory"
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io_file = "/proc/pressure/io"
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else:
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cpu_file = target + "/cpu.pressure"
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memory_file = target + "/memory.pressure"
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io_file = target + "/io.pressure"
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###############################################################################
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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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pass
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else:
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pass
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else:
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pass
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def psi_file_mem_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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def psi_file_cpu_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 = psi_list[0].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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return (some_avg10, some_avg60, some_avg300)
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def log(*msg):
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"""
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"""
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print(*msg)
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if separate_log:
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logging.info(*msg)
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###############################################################################
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logging.basicConfig(
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filename=log_file,
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level=logging.INFO,
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format="%(asctime)s: %(message)s")
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mlockall()
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try:
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(c_some_avg10, c_some_avg60, c_some_avg300
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) = psi_file_cpu_to_metrics(cpu_file)
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(m_some_avg10, m_some_avg60, m_some_avg300,
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m_full_avg10, m_full_avg60, m_full_avg300
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) = psi_file_mem_to_metrics(memory_file)
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(i_some_avg10, i_some_avg60, i_some_avg300,
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i_full_avg10, i_full_avg60, i_full_avg300
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) = psi_file_mem_to_metrics(io_file)
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except Exception:
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log('Cannot open pressure files')
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log('Exit')
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exit()
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"""
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if not os.path.exists('/proc/pressure'):
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print('PSI path does not exist. Exit.')
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exit()
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"""
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log('Starting psi-monitor, target: {}, period: {}'.format(target, period))
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log('----------------------------------------------------------------------'
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'--------------------------------------------')
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log(' some cpu pressure || some memory pressure | full memory pressure ||'
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' some io pressure | full io pressure')
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log('---------------------||----------------------|----------------------||'
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'----------------------|---------------------')
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log(' avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300 ||'
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' avg10 avg60 avg300 | avg10 avg60 avg300')
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log('------ ------ ------ || ------ ------ ------ | ------ ------ ------ ||'
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' ------ ------ ------ | ------ ------ ------')
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while True:
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(c_some_avg10, c_some_avg60, c_some_avg300
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) = psi_file_cpu_to_metrics(cpu_file)
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(m_some_avg10, m_some_avg60, m_some_avg300,
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m_full_avg10, m_full_avg60, m_full_avg300
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) = psi_file_mem_to_metrics(memory_file)
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(i_some_avg10, i_some_avg60, i_some_avg300,
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i_full_avg10, i_full_avg60, i_full_avg300
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) = psi_file_mem_to_metrics(io_file)
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log('{} {} {} || {} {} {} | {} {} {} || {} {} {} | {} {} {}'.format(
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c_some_avg10.rjust(6),
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c_some_avg60.rjust(6),
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c_some_avg300.rjust(6),
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m_some_avg10.rjust(6),
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m_some_avg60.rjust(6),
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m_some_avg300.rjust(6),
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m_full_avg10.rjust(6),
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m_full_avg60.rjust(6),
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m_full_avg300.rjust(6),
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i_some_avg10.rjust(6),
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i_some_avg60.rjust(6),
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i_some_avg300.rjust(6),
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i_full_avg10.rjust(6),
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i_full_avg60.rjust(6),
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i_full_avg300.rjust(6)
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))
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try:
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sleep(period)
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except KeyboardInterrupt:
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log('Exit')
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exit()
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157
psi-monitor
157
psi-monitor
@ -2,8 +2,28 @@
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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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from sys import argv, exit
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import os
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import logging
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separate_log = False
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log_file = './psi-monitor.log'
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period = 2
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###############################################################################
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def cgroup2_root():
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"""
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"""
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with open('/proc/mounts') as f:
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for line in f:
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if ' cgroup2 ' in line:
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# if line.startswith('cgroup2 '):
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return line[7:].rpartition(' cgroup2 ')[0].strip()
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def mlockall():
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@ -28,7 +48,7 @@ def mlockall():
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pass
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def psi_path_to_metrics(psi_path):
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def psi_file_mem_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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@ -47,31 +67,126 @@ def psi_path_to_metrics(psi_path):
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full_avg10, full_avg60, full_avg300)
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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 psi_file_cpu_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 = psi_list[0].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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return (some_avg10, some_avg60, some_avg300)
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def log(*msg):
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"""
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"""
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print(*msg)
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if separate_log:
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logging.info(*msg)
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###############################################################################
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if separate_log:
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logging.basicConfig(
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filename=log_file,
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level=logging.INFO,
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format="%(asctime)s: %(message)s")
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try:
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target = argv[1]
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log('Set target to {}'.format(argv[1]))
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except IndexError:
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log('Set target to SYSTEM_WIDE to monitor /proc/pressure')
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target = 'SYSTEM_WIDE'
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if target == 'SYSTEM_WIDE':
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cpu_file = "/proc/pressure/cpu"
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memory_file = "/proc/pressure/memory"
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io_file = "/proc/pressure/io"
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else:
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cpu_file = cgroup2_root() + target + "/cpu.pressure"
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memory_file = cgroup2_root() + target + "/memory.pressure"
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io_file = cgroup2_root() + target + "/io.pressure"
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if not os.path.exists(psi_path):
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print('PSI path does not exist. Exit.')
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exit()
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mlockall()
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print('Path to PSI file: {}\n'.format(psi_path))
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try:
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(c_some_avg10, c_some_avg60, c_some_avg300
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) = psi_file_cpu_to_metrics(cpu_file)
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(m_some_avg10, m_some_avg60, m_some_avg300,
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m_full_avg10, m_full_avg60, m_full_avg300
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) = psi_file_mem_to_metrics(memory_file)
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(i_some_avg10, i_some_avg60, i_some_avg300,
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i_full_avg10, i_full_avg60, i_full_avg300
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) = psi_file_mem_to_metrics(io_file)
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except Exception:
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log('Cannot open pressure files')
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log('Exit')
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exit()
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log('Starting psi-monitor, target: {}, period: {}'.format(target, period))
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log('----------------------------------------------------------------------'
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'--------------------------------------------')
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log(' some cpu pressure || some memory pressure | full memory pressure ||'
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' some io pressure | full io pressure')
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log('---------------------||----------------------|----------------------||'
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'----------------------|---------------------')
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log(' avg10 avg60 avg300 || avg10 avg60 avg300 | avg10 avg60 avg300 ||'
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' avg10 avg60 avg300 | avg10 avg60 avg300')
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log('------ ------ ------ || ------ ------ ------ | ------ ------ ------ ||'
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' ------ ------ ------ | ------ ------ ------')
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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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(c_some_avg10, c_some_avg60, c_some_avg300
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) = psi_file_cpu_to_metrics(cpu_file)
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sleep(2)
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(m_some_avg10, m_some_avg60, m_some_avg300,
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m_full_avg10, m_full_avg60, m_full_avg300
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) = psi_file_mem_to_metrics(memory_file)
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(i_some_avg10, i_some_avg60, i_some_avg300,
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i_full_avg10, i_full_avg60, i_full_avg300
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) = psi_file_mem_to_metrics(io_file)
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log('{} {} {} || {} {} {} | {} {} {} || {} {} {} | {} {} {}'.format(
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c_some_avg10.rjust(6),
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c_some_avg60.rjust(6),
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c_some_avg300.rjust(6),
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m_some_avg10.rjust(6),
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m_some_avg60.rjust(6),
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m_some_avg300.rjust(6),
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m_full_avg10.rjust(6),
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m_full_avg60.rjust(6),
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m_full_avg300.rjust(6),
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i_some_avg10.rjust(6),
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i_some_avg60.rjust(6),
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i_some_avg300.rjust(6),
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i_full_avg10.rjust(6),
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i_full_avg60.rjust(6),
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i_full_avg300.rjust(6)
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))
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try:
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sleep(period)
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except KeyboardInterrupt:
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log('Exit')
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exit()
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