Comment 11 for bug 1421471

I don't have the system available for testing this bug out any longer - I'll have to re-investigate setting up a 20,000 instance setup to re-test, which I'll add to my TODO.

As I noted on the proposed fix patch https://review.openstack.org/213340 the usage of this API in Horizon is for summary purposes only - we count the results (for quota and usage summary display). This is in the absence of a more appropriate API call.

I will look into re-testing my scenario and check the performance of the Horizon page in question, and file a followup bug which is more specific about the problem if necessary.