MarcelineVQ
8d3460cf1e
- Per-step rdtsc timing: ZGCStats returns max_step_us and atomic_us - AllocBench /zgcstats frame shows step/atomic timing with color coding - /gccompare command for timing forced GC cycles - Honor lua_setgcthreshold forced collections (collectgarbage() with low threshold now triggers GC instead of being silently ignored) - Disable luaalloc in weirdperformance when luagc is active (no conflict) - Closures go to grayagain (covers all upvalue mutation paths)
1.5 KiB
1.5 KiB
weirdperformance
SSE optimization subsystem for WoW 1.12.1. Bone transforms, particle systems, frustum culling, file caching, timer fixes, and fast zlib via libdeflate. Enabled by default in build.
WHERE TO LOOK
| File | Purpose |
|---|---|
weirdperformance.zig |
Module entry, build integration |
bone_sse.zig |
Bone transformation via SSE SIMD |
particle_sse.zig |
Particle system SSE optimization |
clip_sse.zig |
Frustum culling with SSE |
cull_sse.zig |
Additional culling routines |
silicon_sse.zig |
LibSiliconPatch port |
entity_sse.zig |
Entity processing acceleration |
filecache.zig |
In-memory file caching |
inflate_hook.zig |
Compression hook, deflate integration |
timer_fix.zig |
High-resolution timer fixes |
libdeflate/ |
Fast zlib replacement (libdeflate) |
CONVENTIONS
- SSE intrinsics use
std.math.losslessCastfor float/int bit conversion - All SSE code gated behind
has_sse41compile check - Filecache uses named mutex for thread-safe access
- Hook installation deferred to first render, not DLL attach
ANTI-PATTERNS
- NEVER call SSE code without checking CPU feature support at runtime
- NEVER enable libdeflate hook before game engine init completes
- NEVER use filecache mutex during WoW UI thread - causes deadlocks
NOTES
- libdeflate provides 2-5x decompression speedup over stock zlib
- Bone SSE assumes bone matrices are 16-byte aligned
- Timer fix resolves GetTickCount rollover on long sessions
- All hooks use per-feature named mutexes to prevent duplicate installation