Replace asyncio event pool with with uvloop

[asvishnyakov]

It seems that, for some reason, you replaced uvloop, which is used by uvicorn by default, with the default asyncio event loop. This is negatively impacts performance:

chainlit/backend/chainlit/cli/__init__.py

Lines 91 to 92 in 85c98ea

	# Start the server
	async def start():

chainlit/backend/chainlit/cli/__init__.py

Lines 104 to 108 in 85c98ea

	server = uvicorn.Server(config)
	await server.serve()
	# Run the asyncio event loop instead of uvloop to enable re entrance
	asyncio.run(start())

or at least, it feels like performance improved when I replaced this code with the following:

    # Start the server
    uvicorn_config = uvicorn.Config(
        app,
        host=host,
        port=port,
        ws=ws_protocol,
        log_level=log_level,
        ws_per_message_deflate=ws_per_message_deflate,
        ssl_keyfile=ssl_keyfile,
        ssl_certfile=ssl_certfile,
    )
    server = uvicorn.Server(uvicorn_config)
    server.run()

Is this true? If so, is there any reason to keep it that way? Is there a workaround or solution to configure it to use uvloop instead?

[dokterbob]

I'd be extremely surprised if there's an objectively measurable change in performance in a single user case, as most modern machines are perfectly capable of relaying short strings of text at 100Mbit+ rates.

Could you provide a benchmark?