Public bug reported: Binary package hint: evince
Envice is unusably slow with large files. I realize this is partly my machine, but also partly rendering choices. When I zoom in or out on the map (link below) it would appear Envice is trying to render the entire PDF file at that zoom level, so I have to wait for it to complete (takes a few moments). While that is going on, I can't scroll (because the scroll bars are not changed and thus inaccurate until the rendering is completed, and the scaled image tears a lot so I can't scroll to the part of the image I want until rendering is done). I'm not sure why envice is trying to re-render the entire image immediately [or at least that's what I assume it's doing]. While this does make scrolling blazingly fast once the rendering is done, it holds me up when I change zoom levels (as with large PDFs I will scroll and zoom in and out to find areas of interest). Adobe's viewer seems to render in blocks and layers so that you can still scroll around quite happily while it is rendering finer details (although the rendering of those finer details is quite fast as well... perhaps because they are rendering only the area I'm viewing / or perhaps it just feels faster because it renders in layers and I see results sooner / I suspect it's both) So a desirable end result would be a) set scroll bars based on zoom level before rendering (so scrolling is accurate) b) render in layers so scrolling can be done immediately at the new zoom level. c) clip what is being rendered so it can render quickly. d) render only what needs to be rendered (to save cycles). Cache the info (or hints) at various levels/areas to speed future renders when the viewed area and zoom level changes. PDF File (Sorry for the Lotus Domino ugly link... I can upload the PDF [19MB] if you would prefer ;-) ) http://www.grt.ca/web/transit.nsf/5f22897663adffc585256e5a005c53df/57BFAAD12C0940D085256C21004D2EE7/$file/K-W%202009.pdf?openelement ProblemType: Bug Architecture: i386 DistroRelease: Ubuntu 8.10 ExecutablePath: /usr/bin/evince Package: evince 2.24.1-0ubuntu1 ProcEnviron: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games LANG=en_CA.UTF-8 SHELL=/bin/bash SourcePackage: evince Uname: Linux 2.6.27-9-generic i686 ** Affects: evince (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug -- Envice too slow handling large files https://bugs.launchpad.net/bugs/305491 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
