pablito56 · August 29, 2015 13:57 · Mar 31, 2014 · Mar 31, 2014
diff --git a/collections_count.py b/collections_count.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python2.7
+#-*- coding: utf-8 -*-
+#
+# Authors:
+#    Pablo Enfedaque <[email protected]> - 2014
+#
+"""
+Performance comparison of MongoDB operations
+"""
+
+from datetime import datetime
+from time import sleep
+
+from pymongo import MongoClient
+
+
+db = MongoClient()["mongotimes"]
+
+
+try:
+    while True:
+        colls = db.collection_names(False)
+        print datetime.now(), "NUM COLLECTIONS:", len(colls)
+        sleep(1.0)
+except KeyboardInterrupt:
+    pass
diff --git a/outputs.txt b/outputs.txt
@@ -0,0 +1,17 @@
+$ python collections_creation_timing.py 100
+2014-03-31 19:17:34.495816 --- TEST NOT DROPPING DB ---
+2014-03-31 19:20:07.772564 EXPLICIT CREATION: 153.276600838
+2014-03-31 19:20:13.638951 IMPLICIT CREATION: 5.86628293991
+2014-03-31 19:20:15.246171 NO CREATION: 1.60711812973
+2014-03-31 19:20:15.906324 --- TEST DROPPING DB ---
+2014-03-31 19:22:48.116410 EXPLICIT CREATION: 152.209965944
+2014-03-31 19:22:54.014151 IMPLICIT CREATION: 5.56894993782
+2014-03-31 19:22:57.769845 NO CREATION: 2.46466207504
+
+$ python collections_creation_timing.py 100  # Changed NUM_COLLS to 1000
+2014-03-31 19:59:30.187550 --- TEST NOT DROPPING DB ---
+2014-03-31 19:59:41.347007 IMPLICIT CREATION: 11.1593368053
+2014-03-31 19:59:43.878950 NO CREATION: 2.53181004524
+2014-03-31 19:59:45.345161 --- TEST DROPPING DB ---
+2014-03-31 19:59:56.902443 IMPLICIT CREATION: 11.5558490753
+2014-03-31 20:00:01.826150 NO CREATION: 3.3363199234
diff --git a/collections_creation_timing.py b/collections_creation_timing.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python2.7
+#-*- coding: utf-8 -*-
+#
+# Authors:
+#    Pablo Enfedaque <[email protected]> - 2014
+#
+"""
+Performance comparison of MongoDB operations
+"""
+
+from sys import argv
+from timeit import timeit
+from random import choice, seed
+from string import ascii_letters
+from datetime import datetime
+
+from pymongo import MongoClient
+
+
+seed()
+NAMES_LEN = 10
+NUM_COLLS = 50
+DB_NAME = "mongotimes"
+
+conn = MongoClient()
+db = conn[DB_NAME]
+
+
+def explicit_collection_creation():
+    coll_names = ["".join(choice(ascii_letters) for _ in xrange(NAMES_LEN)) for _ in xrange(NUM_COLLS)]
+    for name in coll_names:
+        db.create_collection(name)
+        db[name].insert({"user_id": name, "date": datetime.utcnow()})
+
+
+def implicit_collection_creation():
+    coll_names = ["".join(choice(ascii_letters) for _ in xrange(NAMES_LEN)) for _ in xrange(NUM_COLLS)]
+    for name in coll_names:
+        db[name].insert({"user_id": name, "date": datetime.utcnow()})
+
+
+def no_collection_creation():
+    coll_names = ["".join(choice(ascii_letters) for _ in xrange(NAMES_LEN)) for _ in xrange(NUM_COLLS)]
+    for name in coll_names:
+        db["dbname"].insert({"user_id": name, "date": datetime.utcnow()})
+
+
+number = 10 if len(argv) < 2 else int(argv[1])
+conn.drop_database(DB_NAME)
+print datetime.now(), "--- TEST NOT DROPPING DB ---"
+t = timeit(explicit_collection_creation, number=number)
+print datetime.now(), "EXPLICIT CREATION:", t
+t = timeit(implicit_collection_creation, number=number)
+print datetime.now(), "IMPLICIT CREATION:", t
+t = timeit(no_collection_creation, number=number)
+print datetime.now(), "NO CREATION:", t
+
+conn.drop_database(DB_NAME)
+print datetime.now(), "--- TEST DROPPING DB ---"
+t = timeit(explicit_collection_creation, number=number)
+print datetime.now(), "EXPLICIT CREATION:", t
+conn.drop_database(DB_NAME)
+t = timeit(implicit_collection_creation, number=number)
+print datetime.now(), "IMPLICIT CREATION:", t
+conn.drop_database(DB_NAME)
+t = timeit(no_collection_creation, number=number)
+print datetime.now(), "NO CREATION:", t