Comment 4 for bug 1702483

Thanks Dean.

Here are more relevant timing, using with the --timing option...

***** original setuptools code *****

stack@tm-devstack-master-01:~/devstack$ time openstack --timing user list
+----------------------------------+-----------+
| ID | Name |
+----------------------------------+-----------+
| 14a80a42d7b3438faae35d2368ea1932 | placement |
| 2b47ace878114a77aec6c40eecdc4f2e | demo |
| 3350c86df12f46b3ae3fe2650ff551ac | nova |
| 6b338058fbef4bec8d6914d068785f23 | alt_demo |
| 6c7432c0c0f146df94dfa1758851b4eb | admin |
| 78261b8f3d514434ae561736cb4ace88 | neutron |
| b77ca01c3fa84641ab6f9ee1742347d1 | cinder |
| e86b3c41d7d4411f9fbc7e42f4306ee7 | glance |
+----------------------------------+-----------+

+-----------------------------------------------------+----------+
| URL | Seconds |
+-----------------------------------------------------+----------+
| GET http://192.168.122.192/identity | 0.004805 |
| POST http://192.168.122.192/identity/v3/auth/tokens | 0.048747 |
| POST http://192.168.122.192/identity/v3/auth/tokens | 0.045331 |
| GET http://192.168.122.192/identity/v3/users | 0.052543 |
| Total | 0.151426 |
+-----------------------------------------------------+----------+

real 0m2.581s
user 0m2.220s
sys 0m0.124s

==> 2.43s runtime (not counting API calls)

***** After my proposed setuptools patch *****

stack@tm-devstack-master-01:~/devstack$ time openstack --timing user list
+----------------------------------+-----------+
| ID | Name |
+----------------------------------+-----------+
| 14a80a42d7b3438faae35d2368ea1932 | placement |
| 2b47ace878114a77aec6c40eecdc4f2e | demo |
| 3350c86df12f46b3ae3fe2650ff551ac | nova |
| 6b338058fbef4bec8d6914d068785f23 | alt_demo |
| 6c7432c0c0f146df94dfa1758851b4eb | admin |
| 78261b8f3d514434ae561736cb4ace88 | neutron |
| b77ca01c3fa84641ab6f9ee1742347d1 | cinder |
| e86b3c41d7d4411f9fbc7e42f4306ee7 | glance |
+----------------------------------+-----------+

+-----------------------------------------------------+----------+
| URL | Seconds |
+-----------------------------------------------------+----------+
| GET http://192.168.122.192/identity | 0.00484 |
| POST http://192.168.122.192/identity/v3/auth/tokens | 0.050452 |
| POST http://192.168.122.192/identity/v3/auth/tokens | 0.042775 |
| GET http://192.168.122.192/identity/v3/users | 0.052067 |
| Total | 0.150134 |
+-----------------------------------------------------+----------+

real 0m1.684s
user 0m1.324s
sys 0m0.148s

==> 1.53s runtime (not counting API calls)

So the patch brings a 0.9s win for a setup with only 5 osc extensions (real setups have much more).