Forking on 13.3 restricting to same CPU core

Hi all,

We have an in-house php script that processes images. Been running it for
years. It forks itself a number of times to increase the amount of images
we can process per second.   13.2 has been running great. When upgrading to
13.3 or 14.0, the php forked processes all end up leveraging the came cpu
core, and that slows us waaay down.

I had a 13.2 userland, and 13.3 kernel and the issue doesnt occur.
Using a 13.3 userland and 13.3 kernel the issues does occur.  Same with a
fresh install of 14.0 userland/kernel.

Leveraging the pkg php82 from 13.2 land on 13.3 or the 13.3 pkg php82
doesnt' matter, both show the same issue.

Something in the userland/libraries in 13.3 apparently restricts the forked
php processes from leveraging any additional cpu cores.  Any ideas
where/what/how/why?

Thanks,

-c