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Bug 348094

Summary:	[editor][FF4] Long editor pauses
Product:	[ECD] Orion	Reporter:	John Arthorne <john.arthorne>
Component:	Editor	Assignee:	Project Inbox <orion.editor-inbox>
Status:	RESOLVED WORKSFORME	QA Contact:
Severity:	normal
Priority:	P3	CC:	eclipse.felipe, elliott.ch, Silenio_Quarti, simon_kaegi
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Windows 7
Whiteboard:

Description John Arthorne

2011-06-02 11:59:20 EDT

I20110602 FireFox 4.0.1

Using the editor today on a file of roughly 800 lines. I am finding that once in awhile while editing or moving the cursor with the keyboard, I get very long pauses where nothing happens. For example if I hold down arrow, about every 100 lines I get a 2-3 second pause. This quickly gets quite annoying while editing because it fails to keep up with your typing or navigation.

Comment 1 John Arthorne

2011-06-02 12:00:33 EDT

Editing the same file is smooth as silk on Chrome 11...

Comment 2 Felipe Heidrich

2011-06-10 11:59:01 EDT

John, can you please try something for me out of curiosity.
Close firefox (all the firefox processes)
Start a fresh firefox, navigate directly to the editor page and try reproducing this problem again.

On my machine I saw this problem on firefox for a bit (I saw a pause every ~200 lines holding arrow up down), but after I restarted firefox the problem stopped.

Comment 3 John Arthorne

2011-06-10 13:23:42 EDT

Yes it is much better after a restart. Only very tiny pauses when scrolling through a file like the text view. I guess these are probably GC pauses.

Comment 4 Susan McCourt

2011-06-10 17:45:34 EDT

I find in general that I have to kill Firefox at least once in the day to restore snappiness.  I've always assumed it's a GC thing but wonder if we are leaking something.

Comment 5 Charles Elliott

2012-01-09 14:44:37 EST

I also experience long pauses (60-90 seconds) when adding or deleting text to an existing line.  Also, editor no longer prompts with member variable or function names when a period is typed after a class variable.  The pauses make Eclipse barely usable for Java projects, and the prompts are sorely missed.  This cannot be a Windows 7 problem as Netbeans does not pause when editing text, and it still prompts when a period is typed, albeit with a slight (a few milliseconds) pause.

Comment 6 Simon Kaegi

2012-01-09 15:31:17 EST

(In reply to comment #5)
> I also experience long pauses (60-90 seconds) when adding or deleting text to
> an existing line.  Also, editor no longer prompts with member variable or
> function names when a period is typed after a class variable.  The pauses make
> Eclipse barely usable for Java projects, and the prompts are sorely missed. 
> This cannot be a Windows 7 problem as Netbeans does not pause when editing
> text, and it still prompts when a period is typed, albeit with a slight (a few
> milliseconds) pause.

Hi Charles,
I think you have the wrong eclipse project here. Orion is a browser-based set of tools and not associated with Eclipse IDE code-base. Your comments sound like Eclipse Desktop problems -- e.g. Product=JDT.

Comment 7 John Arthorne

2012-04-20 16:41:19 EDT

I was trying this today in an editor with 6000 lines, in a Firefox 11 session that I had been running all day. I didn't notice the pauses any more so I'm going to close this.