Re: Introducing 'unrecognized and 'ignored

[Richard Stallman <rms@gnu.org>]

      >      - performance  -- the difference is HUGE
      > 
      > What is the connection between using dired and this slowdown?

    It is much faster to ask the VCS about the status of the files and just
    display those results, rather than what it is done today: ask dired
    about all the files in a directory and the ask the VCS about the
    status.

If you don't want VC dired to show non-VCS-managed files, it could
initialize the buffer contents based on the VCS output alone, and that
would get the same speedup.

So I think that speedup is not a factor in dciding whether to
disconnect this from Dired.

I think we concluded that we want to offer the user the option
to show or not show the non-VCS-managed files.

    I believe so. One use for displaying no-file related information:
    repository name, branch name, the command that is being executed (all
    done by PCL-CVS). 

    In the future we might want to add some widgets to select the branch to
    display. Or to the repository to connect to.

Those sound like useful features.