Upload function single-threaded?

ℹ️ Support
1

Hi,

I just installed the official Nextcloud Docker Image (nextcloud:latest) but it seems like uploading to the nextcloud server is only maxing out a single core.
So I‘d like to know, if the upload function is somehow singlethreaded and cannot utilize multiple cores?

2

Setting the chunk size to zero seems to improve the upload speed a bit, but it’s still maxing out at around 25MB/s.

There must be other ways to improve the upload speed…
The client and server are connected via 1Gbit/s

sudo -u www-data php occ config:app:set files max_chunk_size --value 0
3

Does switching to PHP-FPM instead of mod_php help to use more than one core during uploads?