Degraded performace and chat UI lagging in long running conversations

[pkimtani]

Description

I don't know how to describe this in a helpful manner, but when I was working on an EPIC and ran the session for a long time (2-3 session compaction on a 262k context window), I observed significant lag in the chat UI.
I additionally observed a spike in CPU usage.

When I entered /clear to reset the messages, things went back to normal, until the conversation grew again.

Note: These observations were made inside docker sbx as that is my only source of using the docker-agent currently.

P.S.: Happy to provide additional info if needed. I can not attach the session due to NDA on the project I am currently working with :/

Expected Behavior

No response

Actual Behavior

No response

Steps to Reproduce

No response

Docker Agent version

v1.110.0

OS & terminal

docker sbx

Model used

qwen 3.6 35B (served via vLLM)

Error output

Screenshots

No response

Additional context

No response

[Sayt-0]

Hi @pkimtani Does it only happen with SBX, or without it too?

[pkimtani]

@Sayt-0 I have only been using docker-agent with sbx. I will try to reproduce this on my personal laptop with my hobby project over the weekend, if I get a chance. 🙌

[Sayt-0]

Thanks a lot! That will help me figure out where to apply the fix. Feel free to ping me to keep me posted 🙂