15 per second for 40% CPU? ಠ_ಠ This is very strange. On my laptop:<p><pre><code>   ~ $ python -m timeit -s &#x27;import uuid&#x27; &#x27;uuid.uuid4()&#x27;
   100000 loops, best of 3: 14.2 usec per loop
</code></pre>
Which gives more than 70000 random UUIDs per second.