Limits on number of Applications a Group could host

I am wondering if there is a recommended limit on how many Applications a Group should host. I have heard some people say that hosting more than 10,000 applications in a single group could have performance implications.

The use case we are looking at is that if we had a million users, and we associated a Gallery with each user contained under "Site Root" group, will it be a problem?

  • While the answer also depends on hardware capabilities, in recent versions of Community and Enterprise, there would be no difference in hosting all of the applications in a single group or many.  There is not a breaking point at 10,000.