Why jumping around in text is hard [LWN.net]

Why jumping around in text is hard

Posted Feb 25, 2008 10:20 UTC (Mon) by rsidd (subscriber, #2582)
In reply to: Why jumping around in text is hard by zlynx
Parent article: Emacs news: new maintainer, version 22 pretest

qemacs (unfortunately unmaintained) uses mmap(). I tried reading a 450MB file in memory, and it alternately acts very responsively and locks up solid for up to a minute at a time. It also fails to find search strings at the end of the document if I am at the beginning.

emacs takes a few seconds to open the file, but when I was at the top, it found a search string near the bottom quite readily. It does not seem to lock up for more than a second or two. This is an opteron workstation with 2GB RAM, so I guess it's not exercising the swap.

(Log in to post comments)

Why jumping around in text is hard

Posted Feb 25, 2008 10:37 UTC (Mon) by tzafrir (subscriber, #11501) [Link]

qemacs. Indeed tester under harsher conditions. And unlike GNU- and X- Emacs it even has
support for bidirectional text rendering.

'nvi -f' also does the trick.

Or, if you only want to view it: less

P.S. Although I'm not a regular Emacs user, this is still a good place to thank the previous
maintainer for the hard work he put in all previous releases and welcome the new maintainers.