Re: [Boost-users] Passing io_service to socket in implementation file after initialization in header file

Subject: Re: [Boost-users] Passing io_service to socket in implementation file after initialization in header file
From: Gavin Lambert (gavinl_at_[hidden])
Date: 2018-06-19 07:30:00

On 19/06/2018 19:21, james wrote:
> We found a dedicated thread per io_service made things a lot easier. 

Of course; that's the "one io_context, one thread" model.  It's always 
the easiest to code, but has other tradeoffs.

> Strands seem perfect if you want to kill any scalability so we never 
> even considered patterns that required them.

Having separate dedicated threads per X is fine as long as X is 
relatively small (less than #cpus).  It does not scale well.

When X surpasses the #cpus, a stranded threadpool usually provides 
superior performance.

If your X is hardcoded then perhaps it's not a big concern, but if it's 
configurable by the end user, it might be...