I expect lemmy.ml to be hugged to death, but that’s just a DoS.
More interestingly would be how the activitypub network reacts under reddit-like loads and behaviour, and as i understand it, things shouldnt be too bad?
Is lemmy scalable?
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There are a few main problems with performance which we are currently fixing:
- Websocket is inefficient. We are removing it and switching to HTTP API. https://github.com/LemmyNet/lemmy-ui/pull/1081
- There are some slow SQL queries which we need to improve. https://github.com/LemmyNet/lemmy/issues/2877
- There is no caching. This PR adds it, but will only work after rewriting to HTTP. https://github.com/LemmyNet/lemmy-ansible/pull/75
Federation isnt causing any performance problems, its all due to database reads from local users.