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with open('/proc/sys/kernel/task_delayacct') as f:
return bool(int(f.read().strip()))
except FileNotFoundError:
return None
Because /proc/sys/kernel/task_delayacct doesn't exist on RHEL8,
it always returns None, which is equivalent to False in the end.
On RHEL8, delayacct_on kernel variable is enabled by default
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