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Opencode Web - Terminal uses 100% CPU #13899
Description
Description
I noticed on my Linux machine with its 240 fps monitor that chrome was using 100% CPU whenever a terminal was open. The terminal wasn't doing anything, it was just sitting there. This results in the CPU running at a higher power profile than necessary and wasting battery.
Plugins
None
OpenCode version
1.2.6
Steps to reproduce
- Visit open code in a browser
- Open a terminal (non mobile)
- Run
btopor whatever tool you like to look at your CPU usage. Notice chromium is using 100%. - Close the terminal, CPU usage goes down to a few percentage.
Screenshot and/or share link
Here is a view of the chrome browser profiler when the terminal is open. Notice the 100% cpu usage.
Here is a view of the profiler on my own branch where I added a configuration and set the frame rate to 15 fps
Operating System
Linux
Terminal
n/a
Reacted by Trevor Dixon
Activity
github-actions commentedon Feb 16, 2026
Thanks for the detailed report! This is a great find with the performance profiler screenshots.
For context, there's a related feature request #13817 that proposes configurable FPS rate limiting, which directly addresses this issue. The ability to limit refresh rate would be useful for scenarios like yours where constant 240 fps rendering is unnecessary and wastes battery/CPU on idle terminals.
Arsalankhan315 commentedon Feb 16, 2026
13899
jmagder commentedon Feb 16, 2026
PR is open that implements just that! #13901
github-actions commentedon Apr 22, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
jmagder commentedon Apr 22, 2026
These are closing after 60 days? There is an open PR. 😅
ahmad-rahimi commentedon Jul 21, 2026
i have the same problem too. but another interesting thing is that even opencode.ai website uses 100% cpu. Are they doing mining or something like that.