Android App Laggs when watching Photo folder

[ghost]

Hello,
i noticed today when i watched my photos on my phone, that the phone was extremly lagging and need extremly much time to load my photos.

The only thing i can find in the log is:
[2020-02-25 20:18:27.510 +00:00] [INF] Getting image size for item "Photo" "/media/****.jpg"
[2020-02-25 20:18:32.324 +00:00] [WRN] HTTP Response 200 to "192.168.1.1". Time (slow): 0:00:02.0143251. "http://sub.domain.com/Items/***/Images/Primary?tag=53945fae259f872bcdbab281986eec13&quality=90"

Jellyfin Server with Docker 10.4.3 and Android 0.9.9

[ghost]

As it looks like same problem with Jellyfin 10.5.0

[heyhippari]

Hopefully, #907 should improve memory usage and loading times a lot.

It's should be heading to 10.5.1, so when the Android app updates their web version to 10.5.1, you should notice an improvement.

[ghost]

Hopefully, #907 should improve memory usage and loading times a lot.

It's should be heading to 10.5.1, so when the Android app updates their web version to 10.5.1, you should notice an improvement.

I tested it on my android app and the problem persists with 10.5.2 but as you wrote the android app needs an update.

But i testet it also in the webbrowser to open my picture folder but the performance is sadly still really bad. Maybe i can provide some logs?
I opened an folder with 100 pictures and it needs a minute to load and i also hear the drives are spinning^^

Maybe i can provide some logs?

[heyhippari]

A bit more is needed to properly close this :)

Basically, we lazy load images when the page is loaded. Meaning we first load the structure, show it, then load the images in the background while you can browse.

The current lazy loading module, which we inherited from Emby, doesn't unload images when they leave the viewport. This means that images will load once and never be unloaded from memory.

This is very much not optimal and is slated for a rewrite at some point.

I'm reopening this and tagging it as enhancement, to reflect the work left on this.

[ghost]

Thanks ;)
Now i understand why the pictures loading is getting slower and slower.

One thing i doesnt exactly understand, wouldnt it be possible to cache a small version of the pictures in the cache? Because as i see, the files are loaded every time from the hard drive or am i wrong?
I notice this because i use a ssd with the docker files and every time i access a folder (also same folder again) the images are loading from the hard drive?

[JustAMan]

I wonder if this would be at least partially addressed by #967

[heyhippari]

It helps a little with the viewer, but what we really need is an overhaul the lazyloader, so that it unloads images when they leave the viewport.