Best upload_max_filesize to support plupload chunks when uploading large files?

[SJ77]

I know the plupload chunk size is automatically configured based upon the php upload_max_filesize

Right now I have upload_max_filesize set to 10MB

Is this the best setting if people are uploading 2GB or 3GB files?

Thank you in advance.

Edited March 14, 2023 by SJ77

[Makoto]

It depends. You ideally don't want it so small you end up having to make a crazy number of requests for larger uploads. For a 1GB file, you'd need to make 100 requests to finish uploading a file, which is a decent bit, but as this isn't sustained traffic it's not the worst thing. People with faster connections may hit you with a large spike of requests when uploading larger files, as a gig line can push 10MB of data in no time at all, so just need to make sure you can handle that if you want to keep it at a lower value.

You could increase it a bit if you wanted to reduce that overhead a bit, as 10MB is pretty low. But unless you're noticing performance issues, particularly when uploading files, it's probably not a big concern.

[balazsp]

Just my 2cents: if you have any AV (or mod_security) configured, you may want to exclude these large files (if they are not exluded by default), otherwise they can take up a LOT of memory while processing them.