Linux vacca.o2switch.net 4.18.0-553.123.2.lve.el8.x86_64 #1 SMP Thu May 7 23:17:13 UTC 2026 x86_64

/proc/self/root/proc/thread-self/root/usr/lib/python3.6/site-packages/tuned/

//proc/self/root/proc/thread-self/root/usr/lib/python3.6/site-packages/tuned/patterns.py

 class Singleton(object):
	"""
	Singleton design pattern.
	"""

	_instance = None

	def __init__(self):
		if self.__class__ is Singleton:
			raise TypeError("Cannot instantiate directly.")

	@classmethod
	def get_instance(cls):
		"""Get the class instance."""
		if cls._instance is None:
			cls._instance = cls()
		return cls._instance