extremely slow while expand folders containing massive items

[Abyss116]

It seems the atomPerforce.fileIsTracked which queries fstat caused an extremely slow response(blocking) while expand folders containing massive items source controlled.

[mattsawyer77]

@Abyss116 are you sure fileIsTracked is causing issues? It's not blocking anything and should only be called for the file in the current buffer.

Seems more likely that markOpenFiles could be problematic since it watches the tool-panel for changes and has some blocking DOM inspection calls. If this is the problem, we could add a setting to disable the tool-panel style decorations for this kind of slow environment.

[Abyss116]

@mattsawyer77 I'm not sure. Makes sense if that's caused by markOpenFiles if there're thousands of files in the directory tree. Add a setting for disabling the style decorations sounds perfect. Thanks.