Re: TCP RACK stack by default for 15.0 RELEASE ?

From: Scheffenegger, Richard <rscheff_at_freebsd.org>
Date: Mon, 08 Sep 2025 07:32:18 UTC
Cheng has recently done some performance testing. The short answer is, 
that the base stack is much less computationally intensive and better 
suited for datacenter / high performance environments, while the RACK 
stack is optimized for the common Internet Server (Wifi/relatively low 
bandwidth) client use case...

Since fbsd is used in both these diverse environments, changing the 
default would probably lead to a different group of users having to 
tweak their settings off-default, while those who are already tweaking 
it, would no longer have to.

So, overall I don't see a compelling reason to change the default right 
now - but good reason to have both stacks around by default to be able 
to toggle between those if needed.


Richard



  > Mickaël Maillot <mickael.maillot@gmail.com>

 > The tcp rack stack is around for more than a year now, will it be the 
default stack for 15.0-RELEASE ?