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NeoForge server mod
120 samples · one every 10 s −20 minnow
1 Tick time min · med · p95 · max vs 50 ms 2 TPS 1 · 5 · 15 min, wall clock 3 Hitches over budget, last minute 4 Behind lost time, host pauses out 5 Memory heap · physical · swap · GC 6 CPU process · machine · 1 · 15 min 7 Players and ping now · peak · rtt p95 8 Session versions · flags · rules · mods 9 Series one measure over another 10 The window 20 min · one point / 10 s 11 The 50 ms budget above it, a tick was late 12 Tick phases six phases — estimated 13 Per dimension every world, modded too 14 Entity types types, by mod — estimated 15 Block entities ticking apart from idle

1Tick time

min · med · p95 · max vs 50 ms

2TPS

1 · 5 · 15 min, wall clock

3Hitches

over budget, last minute

4Behind

lost time, host pauses out

5Memory

heap · physical · swap · GC

6CPU

process · machine · 1 · 15 min

7Players and ping

now · peak · rtt p95

8Session

versions · flags · rules · mods

9Series

one measure over another

10The window

20 min · one point / 10 s

11The 50 ms budget

above it, a tick was late

12Tick phases

six phases — estimated

13Per dimension

every world, modded too

14Entity types

types, grouped by mod — estimated

15Block entities

ticking apart from idle

measured estimated 50 ms

Tick time against 50 ms

0 25 50 75 ms budget late 9.1 21.6 46.3 63.8 min med p95 max

Every world on one scale

0 2 4 6 8 10 ms overworld 8.1 the_nether 3.1 the_end 0.7 mining_world 2.1 otherworld 1.3 modded

One world's tick, split into phases

estimated entities 9.1 entity loop 6.2 before 3.4 after 2.6 no entity 1.1 rest 2.4 0 5 10 15 20 24.8 ms

Ticking apart from idle

overworld ticking idle hopper 1 284 3 990 chest 0 8 431 furnace 212 1 106 barrel 0 2 205 0 2k 4k 6k 8k

Where the leaders stop

who changed a vanilla mob work off the server thread Java method names what fills the heap

NeoForge server mod · 10 s between samples · 20 min per window · 0.2 % of budget at 20 000 entities, subtracted · no restart · no native library · frozen for good.