[ jEdit-devel ] [ jedit-Bugs-2545734 ] Huge memory usage (220 mb)

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Bugs item #2545734, was opened at 2009-01-30 00:40
Message generated for change (Comment added) made by k_satoda
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Category: editor core
Group: severe bug
Status: Open
Resolution: None
Priority: 9
Private: No
Submitted By: oxk4r (oxk4r)
Assigned to: Nobody/Anonymous (nobody)
Summary: Huge memory usage (220 mb)

Initial Comment:
Hi, I'm running Vista Ultimate x64 Sp1 with jEdit 4.3 pre 16 and Java 1.6.0_12-ea (jre-6u12 for Windows x64). The problem is this: Jedit is using between 170 and 230 mb of memory with just one file opened. I test it with the Java version for 32 bits too, with the same result. Testing this same version with same plugins in a vmWare virtual machine with Windows Xp 32 bits the average memory usage was of 40 mb aprox.

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>Comment By: Kazutoshi Satoda (k_satoda)
Date: 2009-01-30 05:46

Message:
Hmm, strange. But I assume you can see over 130 MB memory usage after
starting jedit with "javaw.exe -jar jedit.jar -nosettings -noplugins".
Right?

Then, what is shown on jEdit's heap indicator (near the left end of the
status bar)? And how it changes if you double-click the indicator (to
run the garbage collection explicitly)? I'm trying to clarify whether
the memory usage is in java heap or not.

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Comment By: oxk4r (oxk4r)
Date: 2009-01-30 05:29

Message:
_The number appears in the Windows task manager.
_The file is an ActionScript file whose size is 4 kb. But with a blank
file the behavior is the same.
_Executed with -noplugins -nosettings and deleting the preferences
directory (C:\Users\UserName\.jedit) the memory usage in the Windows task
manager is of 134 mb)


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Comment By: Kazutoshi Satoda (k_satoda)
Date: 2009-01-30 02:50

Message:
I want some more information to find the cause of the problem.

Where the number ("between 170 and 230 mb") was shown? jEdit's heap
indicator? or Windows' task manager?

What size of the file opened? How much memory are used before opening
the file? jEdit typically requires 3 or 4 times larger heap than the
size of files.

Does the problem happens with "-noplugins" command line option? If it
does, the problem is likely in plugin. In that case, disabling some
plugins may give what plugin causes the problem.

Does the problem happens with "-nosettings" command line option?
Sometimes, some large memory usage becomes persistent in settings.
If there is a large text file in your settings, try renaming it.

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Comment By: Alan Ezust (ezust)
Date: 2009-01-30 02:46

Message:
Please try to determine which plugin is responsible.
Chances are it is not related to the operating system.
If you disable all plugins and start up, do you still see a discrepency?
If not, then one of the plugins is responsible.



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You can respond by visiting: 
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