Performance evaluation for https://review.openstack.org/#/c/328813

gistfile1.txt

1. Environment
We loaded a testing environment at Rackspace with 208,480 zones and 1,442,265 recordsets in DB.
The tenant we use in our tests has 173,259 zones and 1,203,147 recordsets.

2. Tests
The purpose is to quantify the performance gain of GET /recordsets from the newly added DB indexes, and
the impact of those indexes on DB writes, i.e. POST zones/recordsets.

The tests made 100 GET /recordsets requests with and w/o header OpenStack-DNS-Hide-Counts respectively,
also made 100 POST /zones, 500 POST /zones/ID/recordsets.

3. Results

With improvements
                                     |    min  |     max   |   avg   
-------------------------------------+---------+-----------+----------
POST /zones                          | 2.2263  |  2.83789  |   2.3577
-------------------------------------+---------+-----------+----------
POST /zones/ID/recordsets            | 0.1899  |  1.04872  |   0.2847
-------------------------------------+---------+-----------+----------
GET /recordsets?data=   
(OpenStack-DNS-Hide-Counts: True)    | 0.09515 |  0.91712  |   0.15232
-------------------------------------+---------+-----------+----------
GET /recordsets?data=                | 11.0823 |  15.4161  |   11.9399
-------------------------------------+---------+-----------+----------
GET /zones/ID/recordsets?data=       | 0.10589 |  0.69246  |   0.18023
-------------------------------------+---------+-----------+-----------


Baseline
                                     |    min  |     max   |   avg   
-------------------------------------+---------+-----------+----------
POST /zones                          | 2.2149  |  2.8278   |   2.3383
POST /zones/ID/recordsets            | 0.1851  |  1.1472   |   0.2382
GET /recordsets?data=                | 22.8523 |  32.3216  |   24.7150
-------------------------------------+---------+-----------+----------