Details here: https://github.com/LemmyNet/lemmy/issues/3165

This will VASTLY decrease the server load of I/O for PostgreSQL, as this mistaken code is doing writes of ~1700 rows (each known Lemmy instance in the database) on every single comment & post creation. This creates record-locking issues given it is writes, which are harsh on the system. Once this is fixed, some site operators will be able to downgrade their hardware! ;)

You are viewing a single thread.
View all comments
21 points

Man that is some bug, no wonder lemmy had such a rough start performance wise during the reddit migration!

permalink
report
reply

Lemmy Server Performance

!lemmyperformance@lemmy.ml

Create post

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.

Community stats

  • 1

    Monthly active users

  • 43

    Posts

  • 113

    Comments