Slow docker sandbox startup

[pcuci]

Starting a new thread takes about 15 seconds on a modern laptop.

I suspect I might be doing something wrong, but can't wrap my mind about where the slowness happens(?)

The runtime image is already pulled, so no time loss there.

Is OpenHands doing something or waiting for something that tells it the sandbox runtime is ready?

Perhaps I can modify the custom runtime sandbox image I built to facilitate start-up sequence/time? But it's as slow as the default docker.all-hands.dev/all-hands-ai/runtime:0.38-nikolaik

My understanding is that vscode server and an openhands python client are run on the sandbox, and so OpenHands waits for the client to boot up, could that be taking time?

Any caching opportunities?

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