Re: Fwd: Serious performace problems on Windows XP with new(!) GNU Emacs v22 (both patched and unpatched EmacsW32 were tried)

[Peter Tury]

2006/10/20, martin rudalics <address@hidden>:
>  > (Though I still think that the real problem is introduced
>  > outside of whitespace.el).
>
> Try the below.  It mimics the ateol part of the `whitespace-buffer' loop
> and completes on my system in less than 4 seconds.

OK, I'll try it. Thanks!
But I still don't understand how "old" v22 Emacs can be fast?

>  > At least I am happy to see that you could reproduce the error situation.
>
> Just to make sure: Turning off whitespace makes all performance problems
> disappear on your system?

Yes.
In fact I realized this problem when I wanted to switch from "old" v22
EmacsW32 to the newest one, but after installing the new one, it
seemed not to start properly (=it hanged for long time, and I killed
it in that state). Finally I realized that I had desktop saving in my
.emacs, and the most problematic file (what consumes ~5 minutes from
whitespace) was opened when I killed old Emacs before switching to the
new one... Later I could identify that the problem is connected to
whitespace in fact (and not to desktop-save or the mode associated to
the problematic file -- as I first thought). If I don't use whitespace
OR set whitespace-global-mode to nil, everything seems to be OK.