High CPU usage when not using decompression fallback

Hello,

I migrate from unity 2019 to unity 2023 and i can observe a weird issue when i build my game without unity decompression fallback. My game have huge cpu spike and use a really high amount of CPU.

If i use unity decompression fallback, the game do not have an high usage of CPU.

I’m using on my server the web.config from (Unity - Manual: Server configuration code samples) :

The game load fine without any console error but the game use a lot of CPU.

If i use the unity decompression fallback, the game is running normally.
I really do not understand why i can have a cpu usage difference because of the server or unity decompression.

If someone have an idea.

Thank you and have a good day.

dunno did the profiler help?

We can’t profile when it’s on the server.

The issue there is that my game do not have any CPU issue when i use the unity decompression fallback but have a CPU issue when i use my server decompression fallback.

I do not change anything in game i just tick/untick the check box “use decompression fallback” so even with the profiler, i’m not sure that it will give more informations.

well if it is truly related to the compression - you would see it locally on build and run - and be able to profile it… if its not its your webserver… so it tells you where to look either way