Problems with DH pregen: RAM usage, overloaded DH que, overloaded server

log: https://mclo.gs/9szT28I
System RAM: 32 GB ddr5
Server allocated RAM: 25 GB
CPU: i7-13700F

I left DH pregen to run overnight, did not go well...



some minutes after generation started, I could observe warning messages such as this one:


[21:51:03] [Server thread/WARN]: §6Distant Horizons overloaded, too many chunks queued for LOD processing. §r
This may result in holes in your LODs.
Fix: move through the world slower, decrease your vanilla render distance, slow down your world pre-generator (IE Chunky), or increase the Distant Horizons' CPU thread counts.
Max queue count [15000] ([1000] per thread+players).

They started at 21:51 and mysteriously stopped at 05:31, around when cps dropped below 70. These warnings occur regardless of how many threads I have allocated to DH, even when I allocated 22 of my 24 threads


At 6:58 I could observe warning messages such as this one:


[06:58:57] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 2472ms or 49 ticks behind

They occured untill I closed the server


During the whole process ram usage steadily increased, cps going down as it did

I can observe this phenomenon in every pregen I run in this server.
mclo.gs
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