not worth the speed (#1584)

* not worth the speed

* no slots

* uops comments

* bump to python 3.11 for speed

* add critical slots back

test/unit/test_weak.py

@@ -1,103 +0,0 @@
-from tinygrad.helpers import LightWeakSet, LightWeakValueDictionary
-import unittest
-import time
-
-CNT = 1000
-
-cnt = 0
-class MyObject:
-  def __init__(self):
-    global cnt
-    self.cnt = cnt
-    cnt += 1
-    #print(f"object {self.cnt} created")
-  #def __del__(self): print(f"object {self.cnt} destroyed")
-
-class TestWeak(unittest.TestCase):
-  def test_set_drops(self):
-    ss = LightWeakSet()
-    ss.add(MyObject())
-    assert len(ss) == 0
-
-  def test_set_holds(self):
-    ss = LightWeakSet()
-    obj = MyObject()
-    ss.add(obj)
-    assert len(ss) == 1
-
-  def test_set_late_drops(self):
-    ss = LightWeakSet()
-    obj = MyObject()
-    ss.add(obj)
-    assert len(ss) == 1
-    del obj
-    assert len(ss) == 0
-
-  def test_dict_drops(self):
-    dd = LightWeakValueDictionary()
-    dd[0] = MyObject()
-    assert 0 not in dd
-
-  def test_dict_holds(self):
-    dd = LightWeakValueDictionary()
-    dd[0] = ret = MyObject()
-    assert 0 in dd
-
-  def test_a_myobj_microbench(self):
-    for _ in range(3):
-      st = time.perf_counter_ns()
-      for _ in range(CNT):
-        obj = MyObject()
-      et = (time.perf_counter_ns() - st)/CNT
-      print(f"{et:.2f} ns to create MyObject")
-
-  def test_set_add_microbench(self):
-    for _ in range(3):
-      ss = LightWeakSet()
-      st = time.perf_counter_ns()
-      for _ in range(CNT):
-        obj = MyObject()
-        ss.add(obj)
-      assert len(ss) == 1
-      et = (time.perf_counter_ns() - st)/CNT
-      print(f"{et:.2f} ns to add to LightWeakSet")
-
-  def test_set_del_microbench(self):
-    for _ in range(3):
-      ss = LightWeakSet()
-      st = time.perf_counter_ns()
-      for _ in range(CNT):
-        obj = MyObject()
-        ss.add(obj)
-        ss.discard(obj)
-      assert len(ss) == 0
-      et = (time.perf_counter_ns() - st)/CNT
-      print(f"{et:.2f} ns to add/del from LightWeakSet")
-
-  def test_dict_add_microbench(self):
-    for _ in range(3):
-      dd = LightWeakValueDictionary()
-      st = time.perf_counter_ns()
-      for i in range(CNT):
-        obj = MyObject()
-        dd[i] = obj
-      assert len(dd) == 1
-      et = (time.perf_counter_ns() - st)/CNT
-      print(f"{et:.2f} ns to add to LightWeakDict")
-
-  def test_dict_check_microbench(self):
-    for _ in range(3):
-      dd = LightWeakValueDictionary()
-      st = time.perf_counter_ns()
-      for i in range(CNT):
-        obj = MyObject()
-        dd[i] = obj
-        assert i in dd
-        tst = dd[i]
-        del obj,tst
-      assert len(dd) == 0
-      et = (time.perf_counter_ns() - st)/CNT
-      print(f"{et:.2f} ns to add/del from LightWeakDict")
-
-if __name__ == '__main__':
-  unittest.main()