I did the same 2006 on a Pentium III. Bootstrapping (installing/compiling the main system) took roughly 48 hours. And ReiserFS was the FS of choice for the port

I did the same 2006 on a Pentium III. Bootstrapping (installing/compiling the main system) took roughly 48 hours. And ReiserFS was the FS of choice for the portage with its many small files. What has happened to the out of tree approach? Is it followed by any other mainstream OS? (Thinking of btrfs and thelike)