update from Atlas with major reorg

03-dict-set/support/container_perftest.py

@@ -0,0 +1,55 @@
+"""
+Container ``in`` operator performance test
+"""
+import sys
+import timeit
+
+SETUP = '''
+import array
+selected = array.array('d')
+with open('selected.arr', 'rb') as fp:
+    selected.fromfile(fp, {size})
+if {container_type} is dict:
+    haystack = dict.fromkeys(selected, 1)
+else:
+    haystack = {container_type}(selected)
+if {verbose}:
+    print(type(haystack), end='  ')
+    print('haystack: %10d' % len(haystack), end='  ')
+needles = array.array('d')
+with open('not_selected.arr', 'rb') as fp:
+    needles.fromfile(fp, 500)
+needles.extend(selected[::{size}//500])
+if {verbose}:
+    print(' needles: %10d' % len(needles), end='  ')
+'''
+
+TEST = '''
+found = 0
+for n in needles:
+    if n in haystack:
+        found += 1
+if {verbose}:
+    print('  found: %10d' % found)
+'''
+
+def test(container_type, verbose):
+    MAX_EXPONENT = 7
+    for n in range(3, MAX_EXPONENT + 1):
+        size = 10**n
+        setup = SETUP.format(container_type=container_type,
+                             size=size, verbose=verbose)
+        test = TEST.format(verbose=verbose)
+        tt = timeit.repeat(stmt=test, setup=setup, repeat=5, number=1)
+        print('|{:{}d}|{:f}'.format(size, MAX_EXPONENT + 1, min(tt)))
+
+if __name__=='__main__':
+    if '-v' in sys.argv:
+        sys.argv.remove('-v')
+        verbose = True
+    else:
+        verbose = False
+    if len(sys.argv) != 2:
+        print('Usage: %s <container_type>' % sys.argv[0])
+    else:
+        test(sys.argv[1], verbose)