this post was submitted on 17 Aug 2023
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Lemmy Server Performance

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Lemmy Server Performance

lemmy_server uses the Diesel ORM that automatically generates SQL statements. There are serious performance problems in June and July 2023 preventing Lemmy from scaling. Topics include caching, PostgreSQL extensions for troubleshooting, Client/Server Code/SQL Data/server operator apps/sever operator API (performance and storage monitoring), etc.

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post inclusion, a solid WHERE clause filter before any JOIN on SELECT post (listing of posts) (lemmy.ml)
submitted 2 years ago by RoundSparrow@lemmy.ml to c/lemmyperformance@lemmy.ml
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[–] solrize@lemmy.world 2 points 2 years ago

I don't mean the code is new, I mean the user base and data corpus are small compared to what we are hoping for. You're probably right about the ORM. :/