
With Black Duck being the company that acquired Ohloh in 2010, most of the numbers shared during this presentation were from Ohloh-listed projects, but nevertheless the numbers were interesting.
About half the projects had at least two or more contributors.
The top 50 Ohloh-tracked "live" projects topped out with the Linux kernel followed by Google's Chromium, KDE, Mozilla Firefox, Mozilla Core, Boot To Gecko, and then GNOME.
A look at how big the live projects are...
Of the "live" projects, C/C++ commands most of these projects. The language popularity was followed by Java, Python, JavaScript, and others.
Of the top 5000 live projects on Ohloh, the top languages for average liveness classified by language was C++ followed by C, Ruby, and PHP. Of the reported languages, C# had the lowest level of liveliness -- it's usage reported on the previous slide was also quite low -- something that won't please Miguel de Icaza.
The average C++ project size was nearly seven million lines of code while PHP was just above five million lines and Python and Perl came in just shy of 1.5 million lines of code on average for the top 5000 live projects.
Java led when it came to the total number of committers.
Java is also leading when it comes to new projects. Below is Black Duck's summary of their Ohloh project analysis.
Black Duck's slides in full can be found here (PDF).
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