**Benchmark setup**

.. code-block:: python

    from pandas_vb_common import *
    
    s = Series(np.random.randn(100000))
    s[::2] = np.nan
    

**Benchmark statement**

.. code-block:: python

    s.std()

**Performance graph**

.. image:: vbench/figures/stat_ops_series_std.png
   :width: 6in