Server Side Outfit Gallery Preloading Performance impact.

[Feuerblau]

It seems LL decided to run Outfit Gallery Preview images now entirely Server side.
It doesn't cost Lindens anymore, nice move.
BUT....

If someone got a large amount of saved Outfits with preview images, it will significantly impact performance while calling for the preview images. Till it is finished.
Depending on the load of the inventory Server, it can be the performance of your viewer drops SO low that it will give a crash.
Tested on FS and SL viewer so far.
Doesn't happen all the time.
 

For example:
When my FPS is above 10FPS while calling for said preview images, it will be fine.
Drops it lower than 10FPS, it will 100% crash after a while. SL and FS viewer, same behavior.

I would rather pay Lindens again to avoid that. It's extremely annoying to wait ~1-2 Minutes that every preview image finished loading now.
And i don't talk about 1000 or 2000 Outfit Preview images. I talk about 4k and above.
So it may not affect a lot of people... but still. Seems LL didn't had that in mind.

[Kathrine Jansma]

19 hours ago, Feuerblau said:

I talk about 4k and above.

Thats quite a significant number. Like 1+ Outfit per day for 10 years. Even for modest image formats, we are talking 400-500 MB of data for images here.

So in case you have a 1 GBit/s fibre connection, in the optimal case it would take at least 5 seconds. Its rarely optimal. If you have 100 Mbit/s internet, we are already talking about around 1 minute of download time alone. With some luck, there is a client side cache, as it would be trivially cacheable.

That said, something like that shouldn't crash. But if done badly, it might do all kind of fun stuff, like saturate you network link so other communication fails to reach you or slow down the main rendering loop too much. 

Did you double check your antivirus exclusions too? I would imagine a virus scanner going crazy on scanning the downloads might make things even worse.

 

 

[Wulfie Reanimator]

The outfit gallery was always "server-side", that's why you didn't lose the images when upgrading/reinstalling your viewer or switching between them. The thumbnail system is now expanded to all inventory items, not just outfits.

The images are downloaded once and then saved to a cache on your local computer (just like any other texture), so the next time your viewer loads the image it's coming from your disk instead.

Like Katherine mentioned, your antivirus (especially Windows Defender) can slow down the viewer a lot by scanning the cache files as they're accessed.

Edited August 31 by Wulfie Reanimator

[Feuerblau]

On 8/31/2024 at 8:55 AM, Wulfie Reanimator said:

The outfit gallery was always "server-side", that's why you didn't lose the images when upgrading/reinstalling your viewer or switching between them. The thumbnail system is now expanded to all inventory items, not just outfits.

The images are downloaded once and then saved to a cache on your local computer (just like any other texture), so the next time your viewer loads the image it's coming from your disk instead.

Like Katherine mentioned, your antivirus (especially Windows Defender) can slow down the viewer a lot by scanning the cache files as they're accessed.

Unfortunately it does not. It loads them every time from the servers. Why it needs said amount of time to load them.
Before said Update to version 7 FS, it was as you described. Once loaded, it took them from Inventory Cache, without said impact in performance due to the traffic between Client and Servers.

On 8/30/2024 at 6:19 PM, Kathrine Jansma said:

Thats quite a significant number. Like 1+ Outfit per day for 10 years. Even for modest image formats, we are talking 400-500 MB of data for images here.

So in case you have a 1 GBit/s fibre connection, in the optimal case it would take at least 5 seconds. Its rarely optimal. If you have 100 Mbit/s internet, we are already talking about around 1 minute of download time alone. With some luck, there is a client side cache, as it would be trivially cacheable.

That said, something like that shouldn't crash. But if done badly, it might do all kind of fun stuff, like saturate you network link so other communication fails to reach you or slow down the main rendering loop too much. 

Did you double check your antivirus exclusions too? I would imagine a virus scanner going crazy on scanning the downloads might make things even worse.

 

 

It is all set as needed.
It seems it was due to issues with their servers. Didn't crashed again after that day.

But still, for some reason said Images are not cached or at least are always loaded from new after every start now.