this post was submitted on 18 Jun 2025
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Lemmy.world Support

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I've mostly been a .world user, but have this alt account on .ca as a backup. I logged into it to make sure I didn't have anything in my inbox, and noticed that everything loads so much faster. In both cases I'm using the browser interface from my tablet, sorting by all. On .world, there's a pause before the text comes up, then the thumbnails and graphics slowly populate. On .ca, it all pretty much loads instantly.

Is it just the number of users being a lot bigger? More community activity? Hardware differences? Running different software versions? A combination of these? I'm curious.

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[โ€“] [email protected] 15 points 2 days ago (2 children)
[โ€“] [email protected] 6 points 2 days ago (1 children)

you had me on the first half, not gonna lie

[โ€“] [email protected] 4 points 2 days ago (1 children)
[โ€“] [email protected] 4 points 2 days ago

thanks, 2nd anniversary, in lemming years that makes me an elder

[โ€“] BeigeAgenda 3 points 2 days ago* (last edited 2 days ago)

Those critters can really get the hamster wheels spinning, especially when we feed them a mixture of timbits, poutine and maple syrup.

[โ€“] [email protected] 14 points 2 days ago* (last edited 2 days ago) (1 children)

I recently checked the uptime of several large Lemmy instances and found out that the latency of Lemmy.world was roughly 500ms while the latency of other instances was about 100ms. I suspect this is due higher server load. The daily active user count of Lemmy.world is substantially higher than the other top instances.

EDIT: The numbers

The daily active users (somewhat outdated):

lemmy.world response times

beehaw.org response times

[โ€“] AFKBRBChocolate 5 points 2 days ago

That would make sense, ty.

[โ€“] [email protected] 7 points 2 days ago (1 children)

where are you located? do you have an example of things loading slowly? for me things are loading instantly, but if you're not within the EU you're likely dealing with latency across the globe

[โ€“] AFKBRBChocolate 3 points 2 days ago (1 children)

I'm in the US, in Southern California, so for sure could be contributing. Not sure where .ca is hosted.

As for an example, I just went to .world on my desktop browser (firefox) and loaded /all /new. It was 16 seconds between the click and all the visible graphics being loaded. The same thing on .ca was just under 5 seconds. On my tablet, the difference is greater.

[โ€“] [email protected] 6 points 2 days ago (1 children)

how long does it take in an incognito browser window?

[โ€“] AFKBRBChocolate 4 points 2 days ago (1 children)

Oh, much, much faster! Interesting. Okay, why is that?

[โ€“] [email protected] 12 points 2 days ago (1 children)

there were some caching issues in lemmy-ui where it would unnecessarily eat up disk space for caching without even making use of it properly. there was a change done in 0.19.12 that was supposed to mitigate this, but for users who have already collected this it won't automatically delete the unnecessary cache until they logout: https://github.com/LemmyNet/lemmy-ui/pull/3150

even when clearing this manually though i still see this take longer than you'd expect to load, it seems that the image cache is still slowing things down.

i also had some delays on images on the front page before all media loaded. i was able to speed things up again by executing await window.caches.delete("image-cache") in my browser dev tools console, but that is certainly not something to expect from regular users.

i've raised a new issue about this now: https://github.com/LemmyNet/lemmy-ui/issues/3195

meanwhile, you can also work around this by deleting cached data for lemmy.world in your browser, at least until it fills up again.

[โ€“] AFKBRBChocolate 5 points 2 days ago (1 children)

Excellent, thank you. I just cleared my cache and it does seem to have helped a fair amount. Not nearly as fast as in a private window, but probably as fast as .ca is now. Much appreciated, I'm glad I asked.

I guess that would explain why people who access it with an app don't seem to have the same issue, correct?

[โ€“] [email protected] 3 points 2 days ago

probably, this caching is just affecting the default lemmy web interface.

other apps or web interfaces may have their own caching implementations, though for web based stuff it's typically fine to leave it up to the browser, as long as there are suitable cache-control headers sent by the server.

[โ€“] [email protected] 5 points 2 days ago (1 children)

Could be any those things or others, could be multiple things, we couldn't say for sure without knowing their architecture. But aren't they hosted in Germany? Where do you live? Could be as simple as that.

[โ€“] AFKBRBChocolate 1 points 2 days ago (1 children)

I honestly don't know where either of them are hosted. I'm in the US, in Southern California.

[โ€“] Shadow 3 points 2 days ago (1 children)

Ca is just north from you in Vancouver. World being in Germany will make a noticeable latency difference.

[โ€“] AFKBRBChocolate 1 points 2 days ago

Okay, makes sense

[โ€“] [email protected] 2 points 2 days ago

The computer is faster I guess.