CLion IDE slow on Ubuntu
Answered
On Ubuntu 16.04, the CLion (2018.1.3) IDE is runnig slowly: Most actions that involve the GUI sometimes freeze for up to a second, for example opening the autocomplete menu, menus, the windows to add new files, etc. It makes editing text difficult, because for example if seems that if I don't wait long enough after selecting a word and hitting Ctrl-C, it doesn't copy it.
It worked better before on the same host, and if I create a new Linux user account, it works faster.
I tried disabling plugins, allocating more Java memory, and changing the font, but it doesn't have an effect.
Is there a way to debug why it is running slow, and make it run faster?
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I've noticed this too. But only for the past ? weeks. It used to respond very quickly, but lately I try moving the cursor, switching files, etc, and sometimes it just doesn't do anything. Normally fine, sometimes not. Today I was paying attention when it happened, and the little eye icon at the top of the right side change gutter was present, indicating CLion was busy analyzing the code. This particular project only has ~30k lines of source code, but CLion will sometimes stall for 5-10 seconds.
Hello!
Please try using CLion 2018.2 EAP which contains several performance improvements. If the problem is still actual in it, please capture a CPU snapshot and send it to clion-support at jetbrains.com along with automatically generated thread dumps which are located in the logs folder.