High CPU usage in desktop app when terminal panel is open #56105

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1. opencode-agent commented on Oct 16, 2026

   

   opencode-agentBot

   on Oct 16, 2026 – with OpenCode Agent

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   Thanks for the report! I couldn't reproduce this here, because it needs the desktop app running on a real Linux desktop and our sandbox has no display or GPU. A maintainer with a Linux desktop will need to look into it.

   If you get a chance, these would help:

   • Whether the extra CPU stays the same when the terminal is focused versus unfocused (for example, click into the chat input), since the blinking cursor may matter.
   • In top or htop, which OpenCode process uses the CPU: the renderer, the GPU process or the opencode-cli service.

   These related issues report similar desktop CPU problems, though none of them involves the terminal panel or Linux:

   • desktop: idle app pins ~1 CPU core with software rendering and ResizeObserver loop (Intel macOS) #52927: idle desktop app pins about one CPU core (macOS, ResizeObserver loop)
   • desktop: ResizeObserver loop makes app unresponsive #52706: ResizeObserver loop makes the desktop app unresponsive
   • web: sustained ~50% CPU and maxed GPU while live-rendering a streaming session #49552: high CPU and GPU in the web UI while a session is streaming
2. balazs-endresz commented on Oct 16, 2026

   

   balazs-endresz

   on Oct 16, 2026

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   When the terminal panel is open it's ai.opencode.desktop and app.asar that both have much increased CPU usage, both about the same amount. And even xorg uses 2-3x more CPU then (still not a lot in comparison).

   It doesn't make a difference whether the opencode app is either in the foreground or the terminal is focused.