Set Thread numbers

[sneycampos]

Hello, i'm using FrankenPHP in multiple APIs in production but i'm trying to figure out how to set/have only 1 thread.

i have my Dockerfile and .env with num_threads 1

ENV FRANKENPHP_CONFIG="num_threads 1"
EXPOSE 80

root@f3698a6ae797:/app# echo $FRANKENPHP_CONFIG
num_threads 1

But threre are some ?threads? and not only 1:

Is this the expected behaviour or any tip to solve this?

[dunglas]

This setting configure the number of C threads used by PHP itself, but not the number of Go threads that are automatically managed by the Go runtime. I don't know if there is a way to configure the number of Go threads, but it's likely a bad idea. Similarly, having only 1 PHP thread will create a bottleneck. You should probably increase this number.

[sneycampos]

Thank you @dunglas

Was only a question but got it!

I am using this way only in a sandbox server running a few workers (laravel horizon) so my idea was reduce the memory usage because in sandbox we are using a low memory vps

[dunglas]

You should use the GOMEMLIMIT env var to do that, it works very well: https://frankenphp.dev/docs/performance/#go-runtime-configuration

[sneycampos]

@dunglas thank you!
(not related, but: waiting the 1.3 php8.2 bookworm build 😄, did the build process miss something or was delayed?)