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When I go to Preferences->Editors->Text Editors and check 'Show Whitespace Characters' the text editor will, at times, be very sluggish (not draw characters as fast as I can type), but at other times will be okay. The problem persists even if I exit Eclipse, and reload the program. However, if I disable this option, performance immediately improves. Checking it again, problem reappears. However, sometimes the problem is not apparent at all. I'm running with 8 gigs ram.
What version and build ID do you have? Which editor are you using? A reproducible test case would help. I assume it depends on what's visible in the editor.
We would need more data / steps to do anything.
This could also be caused by a combination of settings in the workspace. I remember that we once had performance problems with "Preferences > Java > Editor: Bracket highlighting > Enclosing brackets", and the effects were as you describe. Basically, it could be anything that causes frequent redraws.
What is visible in the editor: code, lots of it, with plenty of white space characters. In this case PHP and JavaScript. The sluggishness does not depend on which perspective editor is being used. It could be some configuration of options, but I have not found any particular combination (aside from enabling visible white space characters of course). Configuration Details: Eclipse SDK Version: 4.2.2 Build id: M20130204-1200 Eclipse SDK 4.2.2.M20130204-1200 org.eclipse.sdk.ide null JavaScript Development Tools 1.4.1.v201208171701-7H7DFg0FC7sReqSyfqesWi org.eclipse.wst.jsdt.feature.feature.group Eclipse Web Tools Platform PHP Development Tools (PDT) 3.1.2.201212211235 org.eclipse.php.feature.group Eclipse.org Subversive SVN Connectors 3.0.0.I20130122-1700 org.polarion.eclipse.team.svn.connector.feature.group Polarion Software Subversive SVN Team Provider 1.0.0.I20130122-1700 org.eclipse.team.svn.feature.group Eclipse.org Subversive SVN Team Provider Sources 1.0.0.I20130122-1700 org.eclipse.team.svn.source.feature.group Eclipse.org SVNKit 1.3.8 Implementation (Optional) 3.0.0.I20121228-1700 org.polarion.eclipse.team.svn.connector.svnkit16.feature.group Polarion Software SVNKit 1.7.8 Implementation (Optional) 3.0.0.I20130122-1700 org.polarion.eclipse.team.svn.connector.svnkit17.feature.group Polarion Software
(In reply to comment #4) > What is visible in the editor: code, lots of it, with plenty of white space > characters. In this case PHP and JavaScript. The sluggishness does not > depend on which perspective editor is being used Do you also see it when you open the same file(s) in the "normal" Eclipse text editor?
I will attempt to find out this information. The issue occurs frequently, but sporadically, and I have not been able to find a scenario that reproduces the bug. When it appears, I will try working in the normal eclipse editor.
(In reply to comment #6) > I will attempt to find out this information. The issue occurs frequently, > but sporadically, and I have not been able to find a scenario that > reproduces the bug. When it appears, I will try working in the normal > eclipse editor. Dîd you also see in the Java editor, or only JavaScript and PHP?
I have not had the chance to observe the Java editor for any length of time since I am not had much of anything to do with Java for the last year.
We can't reproduce this and hence do anything here. It might be a problem with the structured source editors, but to know this, you need to be able to tell us, whether it also happens in the Text editor or not.
