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[ jEdit-devel ] [ jedit-Bugs-2625436 ] Editing long lines significantly slows down jEdit
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From: SourceForge.net <no...@so...> - 2009-02-24 18:09:39
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Bugs item #2625436, was opened at 2009-02-21 13:58 Message generated for change (Comment added) made by ezust You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100588&aid=2625436&group_id=588 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: editor core Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Joseph Hill (nebedaay) Assigned to: Nobody/Anonymous (nobody) Summary: Editing long lines significantly slows down jEdit Initial Comment: I recently upgraded to 4.3pre16, and editing xml documents is now painfully slow, taking several seconds for words typed to appear on the screen. I tried disabling all plugins, including xml-related ones, but this had no effect. By contrast, I had a large number of plugins enabled in pre15. I reverted to pre15 and everything works like it did before. I'd be glad to submit any further information needed to pinpoint the problem. I'm using jEdit 4.3pre16, Sun Java 1.6.0_10, and Ubuntu 8.10. ---------------------------------------------------------------------- >Comment By: Alan Ezust (ezust) Date: 2009-02-24 10:09 Message: Yes, please create a separate bug report. it seems you have different issues. ---------------------------------------------------------------------- Comment By: Lukas Jirkovsky (stativ) Date: 2009-02-24 10:07 Message: Should I create a new bug report with antialiasing problems? nebedaays problem seems to be something different. Anyway disabling font metrics didn't helped me. I've tried to disable all of the settings in the Text Area settings, but nothing changed. ---------------------------------------------------------------------- Comment By: Joseph Hill (nebedaay) Date: 2009-02-24 08:31 Message: Disabling fractional font metrics and/or anti-aliasing has no effect. I've realized that changing to text mode doesn't help either. I have the same problem no matter what mode I use. Apparently, the length of the delay is proportionate to the length of the line I'm typing on. When typing on a short (non-wrapping) line I experience very little delay, although it's still a bit slower than usual. When typing on a very long line that wraps over 20-25 lines (over 250 words or so), it's very slow. Typing at the end of a long line may be even slower than typing at the beginning. Because I'm writing prose in long one-line paragraphs, this means there's a significant delay almost all the time. ---------------------------------------------------------------------- Comment By: Alan Ezust (ezust) Date: 2009-02-24 08:03 Message: DO you have "fractional font metrics" enabled? What happens if you disable it? ---------------------------------------------------------------------- Comment By: Joseph Hill (nebedaay) Date: 2009-02-22 10:48 Message: I've tried with -noplugins, without antialiasing, and without compiz for good measure, all with no effect. In the end, changing to "text" mode did the trick. Maybe it has to do with syntax highlighting in my case. ---------------------------------------------------------------------- Comment By: Alan Ezust (ezust) Date: 2009-02-22 10:05 Message: Do you observe different behavior between 4.3pre15 and 4.3pre16? Because as far as I know, nothing major has changed about jEdit in that regard. Anyway, "subpixel" is the preferred antialiasing for java 1.6 and later. That's what I use. "standard" is what was available on java 1.5. ---------------------------------------------------------------------- Comment By: Lukas Jirkovsky (stativ) Date: 2009-02-22 09:45 Message: I've give it more testing. I've removed my .jedit directory, so jedit starts with defaults settings and no plugins. Anyway, my system is 32bit if it helps. With antialiasing set to none everything works perfectly. With anti aliasing set to subpixel everything also works flawlessly. With anti aliasing set to standard scrolling in every (not only xml) document becomes terribly slow and CPU is utilized by 100% Changing edit mode to text doesn't change anything (just to test if code highlight can affect it). ---------------------------------------------------------------------- Comment By: Joseph Hill (nebedaay) Date: 2009-02-22 09:11 Message: I've tried editing plain-text (non-marked-up) files of around the same size and didn't have the same problem. At least so far it's only been a problem with xml files. ---------------------------------------------------------------------- Comment By: Shlomy Reinstein (shlomy) Date: 2009-02-22 08:53 Message: To make sure that jEdit is running with no plugins at all, try launching jEdit with the "-noplugins" option on the command-line. ---------------------------------------------------------------------- Comment By: Alan Ezust (ezust) Date: 2009-02-22 08:28 Message: Strange, I am not experiencing this problem myself. My system, is very similar, it's a debian linux x86_64 though. And I have antialiasing set to on. I find it strange that you see this only when you are editing XML files and when sidekick is disabled. can you confirm that those two things are true? ---------------------------------------------------------------------- Comment By: Lukas Jirkovsky (stativ) Date: 2009-02-22 00:50 Message: I've forgot some more info: I'm using Sun's java 6u11. OS is Archlinux current. jEdit version is the same (with pre15 working perfectly). ---------------------------------------------------------------------- Comment By: Lukas Jirkovsky (stativ) Date: 2009-02-22 00:48 Message: I'm also experiencing this problem and I've found that it's caused by antialiasing. If I turn it off everything works as before (ie without any slowdown). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100588&aid=2625436&group_id=588 |