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Home » Language IDEs » C / C++ IDE (CDT) » Oxygen Ubuntu 16.04 GTK 2 pauses(Eclipse IDE when set to use GTK 2 still has many short but distracting pauses )
Oxygen Ubuntu 16.04 GTK 2 pauses [message #1785503] Mon, 16 April 2018 01:56
Shawn Terry is currently offline Shawn TerryFriend
Messages: 1
Registered: April 2018
Junior Member
I have spent hours reading about the GTK3 issues with Ubuntu 16.04 with the only sort of resolution seeming to be switching to using GTK2.

I have done this and verified it is indeed using GTK 2 as is shown below

org.eclipse.swt.internal.deviceZoom=100
org.eclipse.swt.internal.gtk.theme=Ambiance
org.eclipse.swt.internal.gtk.version=2.24.30

This (GTK 2) does make both the frequency and duration of the pauses better but the several second pauses that result in the window going gray still occurs very frequently and unpredictably (although the first open of feature window or a new file seems to trigger this much more frequently).

I am not 100% sure it is a GTK issue but it certainly appears to be related to Window management/painting.

The machine is a very fast AMD Ryzen system with 32GB of RAM. I am using the amdgpu graphics driver with an RX 460 card but this seems fine for everything else including other JAVA based GUI apps. I have also increased the Eclipse JAVA VM memory allocation as some have suggested.

I have used Eclipse IDE for many years both C/Java and on a fast machine it was always very responsive.

Are other seeing this issue?? or are you all just content that with GTK 2 it works better than with GTK 3 even though it is still dismal.

Hopefully there is a workaround by now for this strange behavior that someone can suggest??

Added next day:

I have now tried Eclipse with Oracle JAVA 9 VM on Ubuntu 16.04. It is better in a strange way in that I never get pauses that last several seconds and cause the Window to Grey.

However most operations that I think should be and used to be fast seem slow. Not sure if it still bad SWT GTK interaction under Ubuntu or if Oracle Java 9 is just slow.

Hopefully others will weigh in on there experiences and if there is a way to improve the performance and get rid of the pauses.

[Updated on: Mon, 16 April 2018 20:49]

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