Ubuntu 18.04 gnome shell memory leak
Memory leak of gnome shell under ubuntu 18.04 LTS
After some time gnome shell uses 62% of the memory, I also had several times situations where the memory consumption did go to full system memory (16 GB) & swap (also 16GB) usage, meaning the system almost didnt react anymore.
I saw this happening mostly when using the Unity3d editor and importing many assets into my project. - in my example it was about 10 assets using around 30 GB diskspace after import. (without unity import compression) - hint: unity3d editor memory usage was between 2-3 GB while processing asset import.
When I enable the Unity3d import compression option, most times my gnome shell goes out of memory. Interstingly the jumps in memory consumption often happens abrupt and intensive increase in memory consumption of gnome shell happens.
output of top command looks like this:
Tasks: 370 total, 2 running, 276 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.7 us, 0.7 sy, 0.0 ni, 98.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 16433216 total, 2408424 free, 12670052 used, 1354740 buff/cache
KiB Swap: 16777212 total, 13281532 free, 3495680 used. 3854292 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2205 root 20 0 631764 93784 83004 S 5.9 0.6 11:30.75 Xorg
2759 don 20 0 797824 18500 11940 R 5.3 0.1 0:26.45 gnome-term+
2319 don 20 0 16.578g 9.772g 55892 S 4.6 62.4 14:16.38 gnome-shell
Workaround found on https://www.omgubuntu.co.uk/2018/03/gnome-shell-has-a-memory-leak-and-it-might-not-be-fixed-for-ubuntu-18-04-lts
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