Ferrite

[0.7.3-alpha] - 2026-09-03

Added

• Chunkforce auto mode, default off. Engages forced generation when a player sustains ~40 blocks/s; /ferrite chunkforce auto on. Off by default: a 10-run interleaved bench at 90 blocks/s measured 8.1 missing chunks against vanilla's 0.9, worse in every pair.
• /ferrite arrival monitor, /ferrite arrival bench and /ferrite arrival suite. Counts unloaded chunks inside each view distance every 5 s (~50 us/tick at view distance 10), plus an automated flight bench. -Pferrite.autobench=x,z,speed,seconds,runs runs a suite headless.
• /ferrite probe stages and /ferrite pregen order. Per-stage wall timer on the chunk pipeline and a selectable pregen request order (ring, scan, diag). Diagnostics only, default off; readings are in docs/JOURNEY.md.

Fixed

• Own nametag missing in F5 with nametag mods (#15). A leftover client mixin blanked the local player display name. Removed.

Changed

• Entity query index and collider skip are now default on. Opt-in since 0.7.0. Evidence: 10.8M oracle checks with zero mismatches, and a 1022-zombie farm on a shared 4-core server going from 15.5 TPS to a locked 20 TPS. Kill switches: -Dferrite.entityquery.cache=false and -Dferrite.entityquery.colliderskip=false. With Lithium installed the gain is smaller; the two coexist.
• Lower default-config footprint (26.2.x dev build, JDK 25, jcmd; commands in docs/PIANO_STATUS.md):
  • ~4.4 MB of off-heap physics buffers no longer allocate while physics is off.
  • Rust worker pool starts on first use instead of at the title screen: zero idle native threads, was 6.
  • Cramming reuses its spatial hash buckets across ticks.
  • Two leaks closed: parity-capture lists cleared on server stop, and the opt-in nav cache frees native memory on chunk unload.
  • Monitors stop timing entities while reports are off, removing ~100k allocations/s at horde scale. No measurable mspt change on a 24-core desktop; the saving is GC pressure and slow-CPU time.
• Fabric Loader 0.19.5 in the dev and CI build. Minimum stays 0.18.4.