You can perhaps make use of this script https://lemmy.world/post/226441

same, i have a small instance, only running 8 cores on about 32gb right now but could easily scale as needed. Don't even have 50 users and the edge is handling 60% of the traffic. I bet a lot of smaller instances could take 5-10x thier current user counts.

Best way to find instances with shared interests ive seen is : https://browse.feddit.de/

Go to your instance settings (in your case https://lemmyonline.com/admin), change "Federation worker count", double or triple it. Then make sure that "Federation enabled" is checked. Double check that your system date is accurate (I'm serious. On a modern system, just do timedatectl set-ntp true).

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Does anybody know if interaction prompts syncing? I feel like if I comment on something and come back a little bit later things look better federated.