fix psi-top
This commit is contained in:
Alexey Avramov
parent
2981ecd95c
commit
77da0efb9a
@ -1,51 +1,82 @@
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#!/usr/bin/env python3
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from time import sleep, time
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import os
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from sys import stdout
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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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mlockall = True
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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 mlockall:
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from ctypes import CDLL
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CDLL('libc.so.6').mlockall(3)
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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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psi_path = '/proc/pressure/memory'
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psi_support = os.path.exists(psi_path)
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def mlockall():
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def rline1(path):
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"""read 1st line from path."""
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with open(path) as f:
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for line in f:
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return line[:-1]
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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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def psi_mem_some_avg_total():
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return float(rline1(psi_path).rpartition('=')[2])
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libc = CDLL('libc.so.6', use_errno=True)
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avg_min_time = 1
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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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if psi_support:
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ta0 = time()
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a0 = psi_mem_some_avg_total()
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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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if psi_support:
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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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ta1= time()
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dt = ta1 - ta0
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if dt >= avg_min_time:
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a1 = psi_mem_some_avg_total()
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avg = (a1 - a0) / (ta1 - ta0) / 10000
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print('avg time:', round(dt, 1))
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print('PSI mem avg:', round(avg, 2))
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print(rline1(psi_path), '\n')
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ta0 = ta1
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a0 = a1
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stdout.flush()
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sleep(0.1)
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sleep(2)
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51
trash/psi-monitor-old
Executable file
51
trash/psi-monitor-old
Executable file
@ -0,0 +1,51 @@
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#!/usr/bin/env python3
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from time import sleep, time
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import os
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from sys import stdout
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mlockall = True
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if mlockall:
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from ctypes import CDLL
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CDLL('libc.so.6').mlockall(3)
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psi_path = '/proc/pressure/memory'
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psi_support = os.path.exists(psi_path)
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def rline1(path):
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"""read 1st line from path."""
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with open(path) as f:
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for line in f:
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return line[:-1]
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def psi_mem_some_avg_total():
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return float(rline1(psi_path).rpartition('=')[2])
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avg_min_time = 1
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if psi_support:
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ta0 = time()
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a0 = psi_mem_some_avg_total()
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while True:
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if psi_support:
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ta1= time()
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dt = ta1 - ta0
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if dt >= avg_min_time:
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a1 = psi_mem_some_avg_total()
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avg = (a1 - a0) / (ta1 - ta0) / 10000
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print('avg time:', round(dt, 1))
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print('PSI mem avg:', round(avg, 2))
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print(rline1(psi_path), '\n')
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ta0 = ta1
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a0 = a1
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stdout.flush()
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sleep(0.1)
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@ -1,8 +1,8 @@
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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
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from time import sleep, time
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import os
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"""
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Execute the command
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@ -11,11 +11,7 @@ from sys import argv
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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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psi_path = '/proc/pressure/memory'
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def mlockall():
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@ -42,6 +38,7 @@ def mlockall():
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mlockall()
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t0 = time()
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def psi_path_to_metrics(psi_path):
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@ -62,21 +59,75 @@ def psi_path_to_metrics(psi_path):
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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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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]
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print(' avg10 avg60 avg300 avg10 avg60 avg300')
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def get_psi_mem_files(cgroup2_path):
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"""
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"""
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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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path_list = []
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print('some {} {} {} | full {} {} {}'.format(
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for root, dirs, files in os.walk(cgroup2_path):
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for file in files:
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path = os.path.join(root, file)
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if path.endswith('/memory.pressure'): #############
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path_list.append(path)
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return path_list
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def psi_path_to_cgroup2(path):
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"""
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"""
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return path.partition(i)[2][:-16]
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i = cgroup2_root()
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print('cgroup2 root dir:', i)
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if i is not None:
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y = get_psi_mem_files(i)
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for path in y:
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pass # print(psi_path_to_cgroup2(path))
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path_list = get_psi_mem_files(i)
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print(' avg10 avg60 avg300 avg10 avg60 avg300 cgroup2')
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print(' ----- ----- ------ ----- ----- ------ ---------')
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(some_avg10, some_avg60, some_avg300, full_avg10, full_avg60, full_avg300) = psi_path_to_metrics('/proc/pressure/memory')
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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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full_avg300.rjust(6), '[SYSTEM]'))
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for psi_path in path_list:
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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), psi_path_to_cgroup2(psi_path)))
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print(time() - t0)
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sleep(2)
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117
trash/pt02
117
trash/pt02
@ -1,117 +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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import os
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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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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[1].split('=')[1]
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full_avg300 = full_list[1].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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(some_avg10, some_avg60, some_avg300, full_avg10, full_avg60, full_avg300
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) = psi_path_to_metrics(psi_path)
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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 line.startswith('cgroup2 '):
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return line[7:].rpartition(' cgroup2 ')[0]
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i = cgroup2_root()
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print(i)
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def get_psi_mem_files(cgroup2_path):
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"""
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"""
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path_list = []
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for root, dirs, files in os.walk(cgroup2_path):
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for file in files:
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path = os.path.join(root, file)
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if path.endswith('/memory.pressure'):
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path_list.append(path)
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return path_list
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if i is not None:
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print(get_psi_mem_files(i))
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