sched_yield called nonstop, causing 100% cpu usage

[GameParrot]

sched_yield() is called over and over by the game, causing very high cpu usage

To Reproduce
Steps to reproduce the behavior:

1. start mcpelauncher-client with strace
2. see sched_yield spam

Expected behavior
It should not be called this much

Desktop (please complete the following information):

• OS: Linux
• Version: built from source, also happens with latest appimage
• Installation Type: built from source

Additional context
Stubbing sched_yield fixes the cpu usage issue, may cause other bugs

[GameParrot]

Doesn't always happen, possible race condition
Gets triggered by limiting fps and when getting low fps

[ChristopherHX]

didn't observe this problem on ubuntu 22.04

[GameParrot]

didn't observe this problem on ubuntu 22.04

Did you try limiting fps in video settings

[ChristopherHX]

yes, 60, 50, 40, 20, 10 fps

The cpu usages is going back, between 20 and 10 there was almost no difference anymore

Maybe a very very powerfull cpu is the causing the difference, or mobile cpu's have different behavior here
I didn't trace any calls to yield, but if the same functions calls it over and over again then the OS might ignore the yield request