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In Eclipse Juno i observer following operations very slow compared to Helios i used previously on the same machine: - closing single Java editor window - closing single XML editor window - closing all editor windows - closing other editor windows 'Very slow' means the GUI is not responsive for more than 2s even when single editor is closed. (Forgive me, but i don't know how to assess GUI performance correctly) This does not happen at all times. Especially reopening the file and closing once again is usually smooth. Eclipse runtime settings i tried - all defaults (in Helios all defaults worked fine) - increasing mem (-Xmn128m -Xms512m -Xmx2048m -XX:+UseParallelGC) -- this improved general responsiveness a bit
It *may* be because i have some view(s), like History view (CVS), that need update and that may involve network communication and such. If it is so, however, i would still consider it a bug -- such updates should be run async. Especially if they involve network communication.
Piotr, have you by chance also switched to EGit ? It's known to have some areas (like refresh) that lock the UI periodically...
I've egit installed but i am not actively using it. When i observe 'sluggishness' all editors are open on files under CVS control.
Could you attach a screenshot of your window when you are in this state ? This is the easiest way to capture the information about what types of editors you have... thanks. There's an overall defect, bug 385272 that you may want to scan to see if you can see similarities between your structure and others.
Sorry, no screenshot now -- i will when i get back to work. But this is always Java, XML editor or, sometimes HTML editor. The bug 385272 -- i am watching it, but it is very generic issue. I mean exactly the operation i described in the summary, i.e closing editors. (I very often do 'close others')
Many performance fixes have now been made in the Juno SR2 and Kepler development streams. Anyone still encountering problems is encouraged to move up to a recent milestone or stable build, or apply the official performance patch on top of a Juno SR1 release package. Full details on the patch and background on the performance work can be found here: http://wiki.eclipse.org/Platform_UI/Juno_Performance_Investigation If you continue to experience performance problems using Kepler M4 or later, Juno maintenance build M20121128-1200 or later, or using the Juno SR1 performance patch, please report a new bug with all the details. PW
*** Bug 385401 has been marked as a duplicate of this bug. ***
In M20130116-1800 PW
