I haven't had any problems loading multiple gigabyte log files, either. For really big files, there's even an Elisp "hack" to make it work better: https://www.

I haven't had any problems loading multiple gigabyte log files, either. For really big files, there's even an Elisp "hack" to make it work better: https://www.emacswiki.org/emacs/vlf.el https://www.emacswiki.org/emacs/vlf.el I also have the following function in my .zshrc to disable "word wrap", specifically for when I need to read large log files that may have very long lines: emacsr () { emacs -nw "$1" --eval '(progn (setq buffer-read-only t) (setq truncate-lines t))' } I haven't noticed if it makes loading the files much faster (the lines aren't that long), but definitely makes it easier to read them in a terminal.