Re: files.el: Once again impossible to turn off dir-settings

[Stefan Monnier <monnier@IRO.UMontreal.CA>]

> The slowness --- at least as I observe at my end, has not been
> fixed.
> In the caase of vc-backends, I'm able to avoid global crawls
> across NFS filesystems by setting
> ;;; vc speed up:

> (setq vc-ignore-dir-regexp
> "\\`\\([\\/][\\/]\\|/net/\\|/home/\\|/afs/\\)\\'")
> Notice the addition of /home above  -- in my case /home is nfs
> mounted.

NFS mounting as such is normally not a problem.  So could you explain
exactly how is /home mounted?  Is it an autofs mount?  Do accesses to
/home/foobar automatically trigger access to some network server (even
if /home/foobar doesn't actually exist)?

> I strongly urge you to reconsider forcing all users to  take the
> hit of searching for project settings.

> For now, I've defadviced hack-dir-local-variables like so:
> (defadvice hack-dir-local-variables (around fix-slowness pre act comp)
>   "Restore democracy, restore speed"
> nil)

There's locate-dominating-stop-dir-regexp (which will apply both to VC
and to dir-settings).


        Stefan