Heyho,
as a PostgreSQL guy, i’m currently working an tooling environment to simulate load on a lemmy instance and measure the database usage.
The tooling is written in Go (just because it is easy to write parallel load generators with it) and i’m using tools like PoWA to have a deep look at what happens on the database.
Currently, i have some troubles with lemmy itself, that make it hard to realy stress the database. For example the worker pool is far to small to bring the database near any real performance bootlenecks. Also, Ratelimiting per IP is an issue.
I though about ignoring the reverse proxy in front of the lemmy API and just spoof Forwarded-For headers to work around it.
Any ideas are welcome. Anyone willing to help is welcome.
Goals if this should be:
- Get a good feeling for the current database usage of lemmy
- Optimize Statements and DB Layout
- Find possible improvements by caching
As your loved core devs for lemmy have large Issue Tracker backlog, some folks that talk rust fluently would be great, so we can work on this dedicated topic and provide finished PR’s
Greatings, Loki (@tbe on github)
I have concerns about Lemmy having a pattern of hiding these behaviors under the cover. In other words, people running servers having no kind of operator console to know that it is happening. Ideally to me, it would be a setting to adjust in a screen to set for an instance to disable/set threshold. If one doesn’t exist, maybe we can identify where in the code the limit is enforced and hand-edit the code.