Re: [Bug: 21.5-b21] dump-emacs dies for mature xemacs image

Darryl> What you *can* do, with code modifications, is to Darryl> redump (recreate, not add to) XEmacs with your local Darryl> changes. This appears to be what GNU Emacs is doing in Darryl> the wiki, and you should be able to use a similar Darryl> procedure with XEmacs, too. In the sense that it's not simply open ("/path/to/emacs", "w+"), of course you're right---GNU loads the whole file, adds code in RAM, then unexec's the whole memory image. However, for GNU it will be as much as 2 orders of magnitude faster than for XEmacs/pdump, which can't use preloaded LISP for the process because of the difference between xemacs -nd initialization and xemacs initialization. In the script posted on the wiki, I would guess that GNU Emacs starts in 3-5 seconds with an up-to-date fast-emacs, and in 10-20 seconds with a rebuild. By comparison the same numbers for XEmacs are probably more like 5-10s and 150-250s. As I wrote in my reply to Mr. Clemens, I don't think trying to emulate GNU is an appropriate strategy for XEmacs, but you can see the attraction if you start a fresh emacs often. -- School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.