diff --git a/nohang.conf b/nohang.conf index 1def773..b0b5e23 100644 --- a/nohang.conf +++ b/nohang.conf @@ -325,7 +325,9 @@ print_proc_table = False extra_table_info = cgroup_v1 -print_victim_info = True +print_victim_info = False + + # print_victim_cmdline max_ancestry_depth = 1 diff --git a/trash/memleak/memleak b/trash/memleak/memleak index df3fb93..e26ee7f 100755 --- a/trash/memleak/memleak +++ b/trash/memleak/memleak @@ -6,7 +6,7 @@ from time import sleep x = [] while True: - x.append('#' * 9999999) + x.append('#' * 99999) sleep(0.1) - system('sleep 99 &') + system('sleep 9999 &') diff --git a/trash/psi-top b/trash/psi-top new file mode 100755 index 0000000..63e1c19 --- /dev/null +++ b/trash/psi-top @@ -0,0 +1,78 @@ +#!/usr/bin/env python3 + +from ctypes import CDLL +from time import sleep + +""" + 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) + + +print('Path to PSI file: {}\n'.format(psi_path)) + + +print(' avg10 avg60 avg300 avg10 avg60 avg300') + +while True: + (some_avg10, some_avg60, some_avg300, + full_avg10, full_avg60, full_avg300) = psi_path_to_metrics(psi_path) + + print('some {} {} {} | full {} {} {}'.format( + some_avg10.rjust(6), + some_avg60.rjust(6), + some_avg300.rjust(6), + full_avg10.rjust(6), + full_avg60.rjust(6), + full_avg300.rjust(6))) + + sleep(2)