diff --git a/novikovsd/hashtab.py b/novikovsd/hashtab.py
index c06b751..45dc225 100644
--- a/novikovsd/hashtab.py
+++ b/novikovsd/hashtab.py
@@ -158,9 +158,63 @@ def bst_list_all(root):
     inorder(root, result)
     return result
 
-    def generate_test_data(n=10000):
+def generate_test_data(n=10000):
     records = [(f"User_{i:05d}", f"+7-999-{i:05d}") for i in range(n)]
     records_sorted = records[:]
     records_shuffled = records[:]
     random.shuffle(records_shuffled)
-    return records_sorted, records_shuffled
\ No newline at end of file
+    return records_sorted, records_shuffled
+
+def measure_insert(struct_name, records):
+    start = time.perf_counter()
+    if struct_name == "LinkedList":
+        head = None
+        for name, phone in records:
+            head = ll_insert(head, name, phone)
+        obj = head
+    elif struct_name == "HashTable":
+        buckets = ht_create(bucket_count=2000)
+        for name, phone in records:
+            ht_insert(buckets, name, phone)
+        obj = buckets
+    elif struct_name == "BST":
+        root = None
+        for name, phone in records:
+            root = bst_insert(root, name, phone)
+        obj = root
+    else:
+        raise ValueError(f"Unknown structure: {struct_name}")
+    elapsed = time.perf_counter() - start
+    return elapsed, obj
+
+def measure_find(obj, struct_name, existing_names, nonexisting_names):
+    start = time.perf_counter()
+    for name in existing_names:
+        if struct_name == "LinkedList":
+            ll_find(obj, name)
+        elif struct_name == "HashTable":
+            ht_find(obj, name)
+        else: 
+            bst_find(obj, name)
+    for name in nonexisting_names:
+        if struct_name == "LinkedList":
+            ll_find(obj, name)
+        elif struct_name == "HashTable":
+            ht_find(obj, name)
+        else:
+            bst_find(obj, name)
+    return time.perf_counter() - start
+
+def measure_delete(obj, struct_name, names_to_delete):
+    start = time.perf_counter()
+    if struct_name == "LinkedList":
+        for name in names_to_delete:
+            obj = ll_delete(obj, name)
+    elif struct_name == "HashTable":
+        for name in names_to_delete:
+            ht_delete(obj, name)
+    else: 
+        for name in names_to_delete:
+            obj = bst_delete(obj, name)
+    elapsed = time.perf_counter() - start
+    return elapsed, obj
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