On 10/08/2014 07:30 PM, Joe Gordon wrote: > Recently there has been a lot of discussion around the development > growing pains in nova. Instead of guessing about how bad some of the > issues are, I tried to answer a few questions that may help us better > understand the issues. > > > Q: How many revisions does it take to merge a patch? > > Average: 6.76 revisions > median: 4.0 revisions > > > Q: How many rechecks/verifies does it take to merge a patch (ignoring > rechecks where the same job failed before and after)? > > Average: 0.749 rechecks per patch revision > median: 0.4285 rechecks per patch revision > > For comparison here are the same results for tempest, which has a lot > more gating tests: > > Average: 1.01591525738 > median: 0.6 > > > Q: How long does it take for a patch to get approved? > > Average: 28 days > median: 11 days > > > Q: How long does it take for a patch to get approved that touches > 'nova/virt/'? > > Average: 34 days > median: 18 days > > > When looking at these numbers two things stick out out: > > * We successfully use recheck an awful lot. More then I expected > * Patches that touch 'nova/virt' take about 20% more time to land or > about 6 days. While that is definitely a difference, its smaller then I > expected > > > Dataset: last 800 patches in nova > Code: https://github.com/jogo/gerrit-fun
Some related stats on open code reviews: http://russellbryant.net/openstack-stats/nova-openreviews.html I don't have historical data, which would be really useful. However, based on my memory and an old ML post [1], these numbers have tripled for Nova since mid 2013. [1] http://lists.openstack.org/pipermail/openstack-dev/2013-June/011043.html -- Russell Bryant _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
