> Is the lack of adoption mainly due to the fact that it's Solaris, and not Linux? I am guessing it is to avoid to learn a whole new ecosystem, tools, environm

> Is the lack of adoption mainly due to the fact that it's Solaris, and not Linux? I am guessing it is to avoid to learn a whole new ecosystem, tools, environments, rules, package system etc. It's just simpler to stick to Linux. But it all depends, let's say if my application on Illumos shows a 60% performance improvement, well I can see spending time learning it and using it as a base. But it would really have to be large benefit to justify switching OSes. Of course how would I even bother benchmarking to start with? I'd probably have to hear other stories or mentions on HN and such...