Running GUI applications too slow
Answered
Since yesterday running swing applications is really slow. I see green dots in right upper corner(run sign and main class) when I run and I need to wait about 25-30 seconds to see a program, I'm using Arch Linux, java 1.8.0_74. It's not because of update, I have updated today to see if it will fix that, but it didn't.
EDIT: I'm using community edition, on my second machine(windows) runs fast same versions of intellij and jdk.
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Do the apps start fine in the terminal, outside of IDEA? Do you use Run or Debug?
Try to use jstack to get the thread dumps of the starting app to see what happens: https://intellij-support.jetbrains.com/hc/articles/206544899.
No, in terminal nearly same amount of time is needed. I use Run. Here's jstack's thread dump https://ptpb.pw/-A-H.txt and autodump folders https://ptpb.pw/3l6n.rar
In this case the problem is not related to IntelliJ IDEA. Get the thread dumps for your own app, not for IDEA, strace may also help.
It happens to all swing apps, even demo classes from oracle tutorials.
Here's menu demo from oracle tutorials thread dump, https://ptpb.pw/e3d6.txt
I don't know what happened but it's blazing fast now, I tried everything trough day, rebooting, restarting ide and java, reinstalling them and it didn't help and now it magically works, I'll tell you if it happens again. Thank you so much ;)