ludic/changes/stream-arena.md
Orkuncakilkaya 7e9fa4473c render3d: a stream's cache is made with the stream - records and an arena - and evicts in place
stream_update made a Chunk and a words copy per new chunk (fn_stream_update +39 blocks / 13.2 KB a
window with the hiker in the drifting boat). The pool holds STREAM_MAX_CHUNKS records; the arena
is twice the layer's cap; eviction compacts it; a chunk that cannot be kept is gathered from the
scratch. stream_clear_all frees records, lists and streams. steady: 300 new cells, cap 256: 156 KB
before, 0 / -4.9 KB after, and every kept chunk's data checked against its cell.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 13:26:59 +03:00

701 B

bump: patch type: fix Streaming new ground allocates nothing. A streamed layer's cache made a record and a copy of its instances for every chunk the camera found, so the heap grew for as long as there was ground nobody had stood near - a boat drifting across the lake grew it every frame it crossed a cell. Each stream now makes its whole cache when it is created: a record per chunk it can keep and an arena of twice what its layer draws, compacted in place when it evicts. Replacing the world (stream_clear_all) now gives every record, list and stream back. examples/rendering/steady.ludic crosses 300 new cells with eviction running: 156 KB before, 0 after, every kept chunk still its own.