Hi Dan. 

Your question interested me so I went looking. The page you link to further 
links to the uvicorn documentation which seems to indicate their suggestion for 
production deployments is to use gunicorn and the uvicorn worker. 

Their rationale seems to be that uvicorn is great at running an event loop and 
operating asynchronously but the worker process management including increasing 
and decreasing them and hitless upgrades were managed by gunicorns more mature 
features here. 

The way I am conceptualising the core benefit here is multi core machines where 
workers can be thrown into different process threads to utilise all available 
cores while the asynchronous benefits improve parallelisation of requests where 
applied to reduce time to run particular views to completion. So they work 
together for best effect. 

https://www.uvicorn.org/#running-with-gunicorn

Regards
Alexander

Alexander Neilson
Neilson Productions Limited
021 329 681
alexan...@neilson.net.nz

> On 6/06/2022, at 16:06, Dan Davis <dansm...@gmail.com> wrote:
> 
> I am doing some work comparing various ASGI frameworks, SQL Alchemy, just 
> writing the SQL, and that sort of thing, in order to determine what I think.  
> Speed isn't every thing, but speed is a thing.
> 
> Anyway, I was reading about this at 
> https://docs.djangoproject.com/en/4.0/howto/deployment/asgi/uvicorn/ and it 
> is curious that the advise is to run uvicorn as a work rather than a full 
> ASGI server.  Can someone explain why this is necessary or better?
> 
> Thanks,
> 
> -Dan
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