John Jiang has published some interesting data on user and developer community contributions of four of the Open Source Infrastructure as a Services (IaaS) solutions; OpenStack, OpenNebula, Eucalyptus and CloudStack. Jiang started this effort in Q4 2011 and has updated it every 3 months since.
Having insight in these kind of figures can give us an idea about which platforms have the most interaction and therefore are the most active from a development perspective.
- OpenStack has the largest total population, followed by Eucalyptus, CloudStack, and OpenNebula;
- OpenStack has the largest active population during the past quarter, followed by CloudStack, Eucalyptus, and OpenNebula;
- OpenStack has the largest active population during the past month, followed by CloudStack, Eucalyptus, and OpenNebula.
A PDF version can also be downloaded from here.