In my experience, companies are not thrilled to leap from server OS to server OS for a few percent points of extra performance. And even if they want a new server there are such things as central management systems that may or may not have problems with this new version of DragonFly BSD.
-Shades
It's usually more that IT is not thrilled rather than management.
But more seriously, DragonFly
is BSD even though it's now technically a fork. So it shouldn't be a cultural or paradigm shift for most IT departments with BSD or Unix experience. And I really can't imagine any good reason for
not running PostgreSQL (or MySQL or most any other non-Microsoft SQL database server) on anything other than a BSD core if a version is available for it. The cost savings can be significant. And BSD is as rock solid as an OS can get.
But maybe that's just me?