add asv

asv_bench/benchmarks/ctors.py

@@ -6,6 +6,7 @@
     MultiIndex,
     Series,
     Timestamp,
+    date_range,
 )
 
 from .pandas_vb_common import tm
@@ -121,4 +122,28 @@ def time_multiindex_from_iterables(self):
         MultiIndex.from_product(self.iterables)
 
 
+class DatetimeIndexConstructor:
+    def setup(self):
+
+        N = 100_000
+        dti = date_range("1900-01-01", periods=N)
+
+        self.list_of_timestamps = dti.tolist()
+        self.list_of_dates = dti.date.tolist()
+        self.list_of_datetimes = dti.to_pydatetime().tolist()
+        self.list_of_str = dti.strftime("%Y-%m-%d").tolist()
+
+    def time_from_list_of_timestamps(self):
+        DatetimeIndex(self.list_of_timstamps)
+
+    def time_from_list_of_dates(self):
+        DatetimeIndex(self.list_of_dates)
+
+    def time_from_list_of_datetimes(self):
+        DatetimeIndex(self.list_of_datetimes)
+
+    def time_from_list_of_str(self):
+        DatetimeIndex(self.list_of_str)
+
+
 from .pandas_vb_common import setup  # noqa: F401 isort:skip