[Kubuntu 16.04] Matlab UI becoming very slow after some time

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manuel FOSSA 2016-11-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/313617-kubuntu-16-04-matlab-ui-becoming-very-slow-after-some-time

回答： manuel FOSSA 2016-11-29

Working with matlab 2016b on a bi-xeon workstation with 64Gb of RAM on Kubuntu 16.04. Even with very little RAM usage, matlab UI becomes slow after some time (from 1 to several hours). Clicking and typing take several seconds to take effect and i have no other choice but to close matlab and restart it which is as you can image very annoying for work (eventually a show stopper). The rest of my desktop runs fine.

I've searched for similar problems and only found this question which doesn't seem to have any answer.

Any idea on why this is happening?

Thanks

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manuel FOSSA 2016-11-29

Dear Walter, Did you find a solution in your case?

Walter Roberson 2016-11-29

No it was pulling in too many packages to bother with.

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采纳的回答

manuel FOSSA 2016-11-29

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/313617-kubuntu-16-04-matlab-ui-becoming-very-slow-after-some-time#answer_245196

I think i found the culprit. KDE plasma compositor had vsync (settings>hardware>display and monitor>compositor) on automatic which produced flickering and slow response on some apps (including matlab). Putting it on "full screen repaint" seems to have made the problem disappear. In fact while i was looking for that setting matlab started to slow down again. Checking the full screen repaint option redraw the apps windows and matlab suddenly returned to the normal.

Other solutions evoked here and there lie in the same tab by changing the rendered to Xrender or the latest OpenGL.

I'll check if that happens again though.

Thanks for your help