Re: Emacs and big files

Renger van Nieuwkoop <[email protected]> writes:

> Is it possible to reduce this time? Perhaps is there x64-build of
> Emacs…

If you expect the file to be ASCII, or don't care about the encoding of
non-ASCII characters in it, find-file-literally should be faster than
other methods of reading the file.

I'm not sure whether reverting a file that was originally read by
find-file-literally automatically gets this speed advantage, or you may
need to do the reverting differently, using something like:

(defun my-revert-func ()
"Revert a literal file quickly"
       (interactive)
       (with-silent-modifications
              (delete-region (point-min) (point-max))
              (insert-file-contents-literally buffer-file-name)))


Disclaimer: No warranty for the above code.