Brandon ThomasandClaude Opus 5.5 7266f4153f M5.6c: one memory budget for caches, decode gate and GPU pool; peak RSS 1.9-2.3 GB -> 0.83-0.99 GB ...

- memory::budget (default min(25% RAM, 1.5 GiB); LIGHTCRAFT_MEMORY_MB, app.memoryBudget):
  half for engine caches (sources + rendered previews, LRU across them via a global
  use tick; the photo on screen stays), a quarter for decodes in flight (WorkGate:
  thumbnails, prefetch and import probes wait; loupe/export loads never wait), an
  eighth for the GPU free pool.
- GPU: best-fit buffer reuse (<= 25% slack), buffers released outside a render are
  pooled at once (no stranded retired lists), pool trimmed after 3 s idle.
- Decodes drop file bytes and raw samples early, colour/crop/orient in place.
- macOS: apps install malloc_zone_pressure_relief as the release hook (after each
  decode, import and idle trim): freed large blocks no longer stay resident.

14 raws + loupe + 12 steps (M4 Pro): peak RSS 1.9-2.3 GB -> 0.83-0.99 GB, footprint
2.5-2.6 GB -> 0.91-0.96 GB, heap peak 930 -> 656 MB; stepping median ~13 ms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-01 11:35:08 -04:00

..

src

M5.6c: one memory budget for caches, decode gate and GPU pool; peak RSS 1.9-2.3 GB -> 0.83-0.99 GB

2026-10-01 11:35:08 -04:00

tests

M0.10: headless UI rendering — CPU rasterizer for egui, ui.screenshot headless + fallback, lightcraft-cli snapshot

2026-10-01 01:48:48 -04:00

Cargo.toml

M5.6a: memory report (library.memory, ui.inspect memory) and opt-in DHAT heap profile

2026-10-01 10:28:13 -04:00