[openstack-dev] [openstack-ansible] Debugging slow Xenial gate

Jesse Pretorius Jesse.Pretorius at rackspace.co.uk
Wed Nov 2 14:06:19 UTC 2016

> On 11/2/16, 1:51 PM, "Major Hayden" <major at mhtx.net> wrote:
>    I tossed up a horribly written hack[0] to change some CPU scheduler settings back to the Trusty settings.  My initial tests were great!  Also, the first test in OpenStack CI was really good --  62 minutes for trusty and 65 minutes for xenial.  However, that seems to be a fluke since the second test had a 30 minute gap between the test durations. :(

I think that difference was due to the hardware/contention profiles of the different nodepool providers. You’ll have to do tests somewhere we you can execute on a consistent hardware profile, ideally with no other contention on the host, in order to get reliable comparisons.

I think Logan may be able to help with that. Alternatively perhaps you can get access to an OSIC host or instance for testing?

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