Copilot in intellij uses an absurd amount of memory

[viniciusccarvalho]

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Hi folks, I have been enjoying quite a lot the plugin so far, it really helps in doing a lot of the mundane repetitive work that once one would need to do.
However I noticed a massive degradation of performance of my system (Mac OS Monterey), and that Intellij was using close to 10Gb of memory.
Not only that, but due the plugin very intensive cpu request, Intellij alone was consuming 10x more energy than the rest of all the applications on the system combined :(
I'm running version 1.4.6.4092 of the plugin on intellij Build #IU-233.13135.103,

I looked into an hprof dump and found that there 67% of the largest offenders in memory usage came from a single class:
CopilotTextInputTextArea

Maybe there's a way to improve all that?

Thanks

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[slavkobojanic]

Yeah big time, i've got an almost maxed out MacBook Pro and it CHUGS whenever the pane with Copilot chat is open but closing the pane completely resolves the performance issue. Kind of annoying to have to remember to close the pane so often. The plugin isn't open source either so we can't open a PR to fix :sad:

[inneobru]

@slavkobojanic I have the exact same behaviour. As soon i open up Githup Copilot chat the CPU goes up and as soon I close the chat, the CPU is normal again. This behaviour is since Intellij 2024.2. Bevor I didn't had this behaviour. Really odd.

[99sono]

I’m experiencing the same issue:

top - 09:22:23 up 10 min,  0 users,  load average: 2.82, 12.13, 6.73
Tasks:  13 total,   1 running,  12 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.8 us,  0.3 sy,  0.0 ni, 98.8 id,  0.1 wa,  0.0 hi,  0.1 si,  0.0 st
MiB Mem :  28068.3 total,  10621.5 free,  11887.9 used,   5558.9 buff/cache
MiB Swap:   7168.0 total,   7168.0 free,      0.0 used.  15544.1 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                      3274 wildfly   20   0 9085344   4.0g   1.0g S   6.0  14.6   3:46.90 remote-dev-serv
 3517 wildfly   20   0  121.4g   6.0g  38960 S   0.3  21.8   2:22.33 copilot-languag   (completely out of control)
 3527 wildfly   20   0   11.7g 858536  40308 S   0.3   3.0   0:45.63 java

The IntelliJ Copilot plugin is consuming excessive memory and severely impacting my IntelliJ performance.

Seems to be another relevant thread:
https://github.com/orgs/community/discussions/28571

Also the feedback discussions:

https://github.com/orgs/community/discussions/110614