[Openstack-operators] [openstack-dev][tc][all][osprofiler] OSprofiler is dead, long live OSprofiler
ihrachys at redhat.com
Mon Nov 9 11:53:34 UTC 2015
(Sorry Boris, now with correct CC list.)
Boris Pavlovic <boris at pavlovic.me> wrote:
> Hi stackers,
> It's not a big secret that OpenStack is huge and complicated ecosystem of
> services that are working together to implement OpenStack API.
> For example booting VM is going through many projects and services:
> nova-api, nova-scheduler, nova-compute, glance-api, glance-registry,
> keystone, cinder-api, neutron-api... and many others.
> The question is how to understand what part of the request takes the most
> of the time and should be improved. It's especially interested to get
> such data under the load.
> To make it simple, I wrote OSProfiler which is tiny library that should
> be added to all OpenStack
> projects to create cross project/service tracer/profiler.
> Demo (trace of CLI command: nova boot) can be found here:
> This library is very simple. For those who wants to know how it works and
> how it's integrated with OpenStack take a look here:
> What is the current status?
> Good news:
> - OSprofiler is mostly done
> - OSprofiler is integrated with Cinder, Glance, Trove & Ceilometer
> Bad news:
> - OSprofiler is not integrated in a lot of important projects: Keystone,
> Nova, Neutron
Any idea what it would imply for e.g. Neutron to get it integrated? How
huge is the expected piece of code?
> - OSprofiler can use only Ceilometer + oslo.messaging as a backend
> - OSprofiler stores part of arguments in api-paste.ini part in
> project.conf which is terrible thing
> - There is no DSVM job that check that changes in OSprofiler don't break
> the projects that are using it
> - It's hard to enable OSprofiler in DevStack
> Good news:
> I spend some time and made 4 specs that should address most of issues:
> Let's make it happen in Mitaka!
> By the way somebody would like to join this effort?)
> Best regards,
> Boris Pavlovic
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
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