this post was submitted on 18 Jul 2023
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Meta (lemm.ee)

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I'm testing an optimization on lemm.ee (1000x speed-up for subscribed feed) - please let me know if you notice any issues! (lemm.ee)
submitted 2 years ago* (last edited 2 years ago) by sunaurus@lemm.ee to c/meta@lemm.ee
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Hey folks!

I have deployed an unreleased Lemmy optimization on lemm.ee which significantly speeds up the query for loading posts.

So far, all seems good, but if you notice any issues with any of the post feeds, please let me know!

For more context:

Over the past few days, I have noticed a serious degradation for front page load times for some users. I have been trying different optimizations without much success, until I found an idea by @phiresky@lemmy.world to make a relatively small change to the database query for loading posts.

I implemented this idea and made a PR to Lemmy, you can check my PR here: https://github.com/LemmyNet/lemmy/pull/3653. Initial results seem amazing, my personal subscribed feed now loads extremely quickly, and I'm seeing from monitoring that load times should be improved for other lemm.ee users as well!

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[–] aCosmicWave@lemm.ee 3 points 2 years ago

I only observed a disappointing 995x improvement. What can I do to attain the remaining 5x?

Just kidding - you rock! I originally signed on with lemm.ee after I read one of your previous optimization posts regarding Cloudflare. You seemed like a gent who was on top of his game ☺️.

[–] simple@lemm.ee 2 points 2 years ago

Seems super responsive so far, a night and day difference compared to waiting like 0.5 seconds every refresh on Lemmy World. Thanks!

[–] Holodeck_Moriarty@lemm.ee 1 points 2 years ago

This is the most responsive and reliable instance by far. Thank you.

[–] Jeff@lemm.ee 1 points 2 years ago

Will concur that it’s faster to me on voyager which is what I’m using at the moment. Will try some of the other apps and compare. Thank you btw. Great instance here!

[–] Dekthro@lemm.ee 1 points 2 years ago* (last edited 2 years ago)

Awesome! I think I found my main Lemmy! Finally...

[–] Odo@lemm.ee 1 points 2 years ago (1 children)

I thought Jerboa had a cached version of the frontpage and had to refresh because of how fast it loaded the first time.

[–] Mythril@lemm.ee 2 points 2 years ago

Haha, that reminds me of some story about a dev who had to add a timer/slowdown to the loading progress bar in some software, because when it worked instantly, the users thought that it did not work at all!

[–] JDMaybeMD@lemm.ee 1 points 2 years ago* (last edited 2 years ago)

SUPER snappy.

FYI - seeing this post on on ~~federverse~~ fediverse is what brought me here, the lemm.ee project overall and the dev community engagement is encouraging and I hope to have found a home.

[–] zdrvr@lemm.ee 1 points 2 years ago

It does seem to have a little pep in its step this morning!!! Thanks!

[–] MBM@lemmings.world 1 points 2 years ago

It's very cool to see Lemmy get more and more optimised.

[–] moup@lemm.ee 1 points 2 years ago* (last edited 2 years ago)

Waay faster and zero problems so far