[ jEdit-devel ] [ jedit-Bugs-797159 ] Long startup time due to search dialog preload

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Bugs item #797159, was opened at 2003-08-29 05:01
Message generated for change (Comment added) made by spestov
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Category: editor core
Group: normal bug
>Status: Closed
Resolution: None
Priority: 5
Submitted By: Alexander Kireyev (shoorique)
Assigned to: Nobody/Anonymous (nobody)
Summary: Long startup time due to search dialog preload

Initial Comment:
jEdit 4.2pre4 (and pre3) has a long startup time.

Profiling shows that a lot of time is spent preloading

search dialog.



Since search dialog is rarely needed right after

startup it can be loaded in a background thread. I have

tried to change org.gjt.sp.jedit.search.SearchDialog to

preload search dialogs on backgroung thread. Testing

shows good improvement of the startup time - at least

the delay b/w end of progress on splash screen and

popping up the editor view is much less. The changed

file is attached.

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>Comment By: Slava Pestov (spestov)
Date: 2003-09-09 18:26

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I just did a little test and the preload only adds 148 ms to

the startup time. Keep in mind that figures from a profiler

are quite skewed since a) the profiling adds overhead to the

JVM b) when profiling, the JIT/hotspot is disabled.

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Comment By: Alexander Kireyev (shoorique)
Date: 2003-09-01 05:16

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Yes, I have tried that. If a search dialog is invoked

immediately after startup (ctrl-F) - there is a delay in its

display. Except of that I haven't seen any problems. The

delay is not very long. Also, in my experience, few people

ever start working with an editor with a search command,

therefore this should rarely be noticable. OTOH any delay in

startup time is very noticable for most users.

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Comment By: Shawn David Pringle (springle)
Date: 2003-08-29 19:11

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Ok, have you tried searching via the shortcut keys

immediately after startup?  Or a hypersearch immediately

after startup?  How is that handled?

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