feat: add unpack variants benchmark (#94)

bench/unpack_variants.py

@@ -0,0 +1,60 @@
+import timeit
+
+from dbus_fast import Variant, unpack_variants
+
+message = {
+    "/org/bluez/hci0": {
+        "org.bluez.Adapter1": {
+            "Address": Variant("s", "00:E0:4C:2A:25:63"),
+            "AddressType": Variant("s", "public"),
+            "Alias": Variant("s", "BlueZ 5.63"),
+            "Class": Variant("u", 2883584),
+            "Discoverable": Variant("b", False),
+            "DiscoverableTimeout": Variant("u", 180),
+            "Discovering": Variant("b", True),
+            "Modalias": Variant("s", "usb:v1D6Bp0246d053F"),
+            "Name": Variant("s", "BlueZ 5.63"),
+            "Pairable": Variant("b", False),
+            "PairableTimeout": Variant("u", 0),
+            "Powered": Variant("b", True),
+            "Roles": Variant("as", ["central", "peripheral"]),
+            "UUIDs": Variant(
+                "as",
+                [
+                    "0000110e-0000-1000-8000-00805f9b34fb",
+                    "0000110a-0000-1000-8000-00805f9b34fb",
+                    "00001200-0000-1000-8000-00805f9b34fb",
+                    "0000110b-0000-1000-8000-00805f9b34fb",
+                    "00001108-0000-1000-8000-00805f9b34fb",
+                    "0000110c-0000-1000-8000-00805f9b34fb",
+                    "00001800-0000-1000-8000-00805f9b34fb",
+                    "00001801-0000-1000-8000-00805f9b34fb",
+                    "0000180a-0000-1000-8000-00805f9b34fb",
+                    "00001112-0000-1000-8000-00805f9b34fb",
+                ],
+            ),
+        },
+        "org.bluez.GattManager1": {},
+        "org.bluez.LEAdvertisingManager1": {
+            "ActiveInstances": Variant("y", 0),
+            "SupportedIncludes": Variant(
+                "as", ["tx-power", "appearance", "local-name"]
+            ),
+            "SupportedInstances": Variant("y", 4),
+            "SupportedSecondaryChannels": Variant("as", ["1M", "2M", "Coded"]),
+        },
+        "org.bluez.Media1": {},
+        "org.bluez.NetworkServer1": {},
+        "org.freedesktop.DBus.Introspectable": {},
+        "org.freedesktop.DBus.Properties": {},
+    },
+}
+
+
+def unpack_managed_objects():
+    unpack_variants(message)
+
+
+count = 3000000
+time = timeit.Timer(unpack_managed_objects).timeit(count)
+print(f"Unpacked {count} get managed objects messages took {time} seconds")