Comment 18 for bug 1777968

After applying my patch requests times are better now. I haven't found any 5xx or 4xx errors during my test also. Every port was created.

https://review.openstack.org/#/c/611341

After applying this patch times in seconds for 300 ports:
>>> numpy.std(data)
6.643350909534087
>>> numpy.percentile(data, 90)
31.71428038
>>> numpy.percentile(data, 99)
37.62866121
>>> numpy.percentile(data, 50)
23.123787049999997
>>> numpy.min(data)
4.2004371
>>> numpy.max(data)
40.4567599
>>>