Annuus is a mod for minecraft networking, improves network performance and makes the game more available for running on large server.

Supported minecraft 1.21.x with fabric loader and neoforge loader, needs fabric-api when using fabric.

When the player doesn't install annuus on the client, network packet will send normally like vanilla.

Performance

Chunk data

Deflate 1 has less CPU usage, even though that performance is not good enough here
So it be considered as a compression option

We have tested view distance as 10 (473), 12 (637), 16 (1057), 32 (3725), installed mod only fabric-api.

env/chunks	473	637	1027	3725
Vanilla	35.03ms 13.94MB	40.51ms 18.74MB	72.57ms 31.66MB	238.69ms 122.40MB
Annuus (Deflate 9)	29.76ms 1.17MB	50.46ms 2.39MB	48.6ms 4.04MB	163.31ms 15.98MB
Annuus (Deflate 1)	36.09ms 2.21MB	51.06ms 2.96MB	57.94ms 4.99MB	235.22ms 19.65MB

Block updates

The more blocks collect the more advantages in Annuus protocol, such as very huge piston towers

And chunk delta update blocks, every time collect 1229 blocks:

env/blocks	2455	7365	24550	78560
Vanilla	9.72KB	29.16KB	97.2KB	311.06KB
Annuus (Deflate 9)	6.79KB	20.39KB	67.97KB	217.53KB
Annuus (Deflate 1)	6.35KB	19.07KB	63.59KB	203.5KB

Recipes synchronize

env/recipes	1290	9587
Vanilla	105.73KB	692.2KB
Replacement v1 (no_compress)	94.4KB	612.86KB
Replacement v1 (deflate_9)	19.61KB	135.9KB
Replacement v1 (deflate_1)	24.11KB	169.11KB