Opening JSP files makes IDEA very slow and unusable : IDEA-45438

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Project	IntelliJ IDEA
Priority	Normal
Type	Bug
Fix versions	No Fix versions
State	Fixed
Assignee	Maxim Mossienko
Subsystem	Editor. Editing Text
Affected versions	No Affected versions
Fixed in build	108.65

Created by Alex Murkes
3 years ago (28 Aug 2008 04:56)
Updated by root
2 years ago (17 Jan 2010 21:05)
Jira: IDEADEV-32190
(history, comments)

IDEA-45438 Opening JSP files makes IDEA very slow and unusable

Issue is visible to: All Users

2 Attachments

7941_amurkes_28.08.2008_09.41.03.zip (2 MB)

7941_amurkes_28.08.2008_09.58.28.zip (2 MB)

JSP files of any substantial size (say, 2000 lines) makes IDEA unusable. Every mouse or keyboard action takes around 20 seconds to complete on my fast machine. CPU is very high.

Basically, people at my company either use a different editor, remove JSP file association and view them as plain text, or use IDEA 5.1.2 which works fine for one person at least.

I personally noticed this issue with IDEA 7.0.3 (had no need to look at JSP files before), but my colleagues say that "jsp files have been slow forever".

Environment: Windows XP Pro 32 bit, SP 2.
Pentium D 3.4GHz
3.5GB RAM

Issue was resolved

Dmitry Jemerov

28 Aug 2008 14:37

3 years ago

Please take a CPU snapshot as described in http://support.jetbrains.com/kb/entry.jspa?externalID=192&categoryID=5 and attach it to this issue.

Alex Murkes

28 Aug 2008 21:54

3 years ago

I recorded the CPU snapshot. However, as soon as I pressed the Capture CPU button, the performance problem disappeared, and has not appeared for the last 30 minutes. You must be changing some settings when recording is turned on.

Alex Murkes

28 Aug 2008 22:03

3 years ago

Ok, the issue just came back, here's another snapshot. I was simply moving around a JSP file with just over 2000 lines, moved to a Java file and then back to the jsp, moved around a bit more and stopped the recording.