Hi everybody! I rent a vps with 6 cores, 16 GB ram and 100 GB nvme to run fediverse instances (mastodon, lemmy, matrix, peertube) and a couple related services (nginx proxy manager, nodebb forum, wiki.js, uptime kuma, portainer, tig-stack).

The why

Over the past month they have been running. It has been some work to set them up but since then they run pretty flawlessly. My main goal was to find out how much hardware I really need to run private instances (just me or maybe a handful of friends).

Here are the stats:

Disclaimer: I checked and all services federate correctly.

Resource usage

From my point of view, the 6 cores are totally overkill. A two core would probably suffice. Of the 16 GB of ram I currently need 4. So 8 should suffice. The 100 GB nvme drive is barely handling it (66% full) and thats without backups (they get pulled immediately and then deleted) and with a 48 hour media delete cycle on mastodon (which currently is the largest folder I have).

Individual Space usage (nvme)

  • 8.0K heimdall
  • 2.0G lemmy
  • 7.1G mastodon
  • 5.2G matrix
  • 123M nodebb
  • 236M npm
  • 3.5G peertube
  • 12K pgadmin
  • 8.0K portainer
  • 376K tig-stack
  • 8.0K uptime-kuma
  • 8.0K watchtower
  • 12K wiki.js
  • 3.6G wordpress

So while I use lemmy the most, mastodon uses far more disk space, matrix also uses more than lemmy although I’m in like 20 chats and my friends don’t use matrix except to chat with one another. I have subscribed to maybe 50 communities on lemmy.

Since the graphs in the screenshots lack legends, I’ll explain the spikes.

Container CPU usage

  • red spike: lemmy postgres
  • lightblue: mastodon sidekiq
  • yellow: telegraf
  • dark-blue: lemmy ui

Container Ram usage

  • red line: peertube
  • light-blue: mastodon sidekiq
  • dark-red: lemmy postgres
  • pink: mastodon postgres

Summary

So far I didn’t actively try to get the needed resources down except mastodon since I didnt want it to derail my experiment.

Mastodon seems to have the worst data on drive footprint, Peertube seems like a constant ram hog and lemmy spikes in the cpu all the time. So they all have their positives and negatives but nothing major. If you have 2 cores, at least 6 GB of ram and probably 250 GB of disk space to spare you should be good.

I’ll work on making the compose files and config files publicly available but right now I’m not there. If you need help spinning up an instance, please let me know. I can send you individual files if needed.

Have a good one! :)

  • fmstratAEnglish
    62•7 months ago

    Hey all, don’t get too excited. A 2GB Lemmy instance has very little data going through it. My instance, which is just me, and auto-subscribes to communities with “Top” posts using LCS, processes about 10GB of new data a day.

    Without subscriptions, the Top, Hot, etc feeds would basically be empty. So if you only want communities you subscribe to, IO will be low, but if you want a full experience, disk and IO will be your bottleneck.

    All that being said, thanks to OP for giving the community all this extremely helpful info.