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perf: consolidate filecache, timer calibration into performance module

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Move filecache.zig and timer_fix.zig from standalone modules into
src/performance/. Filecache no longer has its own hooks/mutex — stats
are dumped by performance's worldupdate hook. Timer calibration runs
during performance install instead of transform44. Remove filecache
from build module list (enabled automatically with performance).
Merge DLL_README sections into single Performance entry.
This commit is contained in:
MarcelineVQ
2026-03-24 17:28:19 -07:00
parent 3cab0db8c8
commit 979e5729bc
7 changed files with 49 additions and 133 deletions
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DLL_README.md
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@@ -243,35 +243,16 @@ Lua API for addon developers:
---
### MPQ File Cache
Caches the results of MPQ archive file lookups so repeat file opens skip the expensive archive chain walk and hash table probe. The game re-opens the same model and texture files hundreds of times per second during gameplay -- each lookup normally searches through every loaded MPQ archive. The cache remembers which archive contains each file and returns the answer directly.
Cache hits cost roughly 1/30th of a full search. During heavy gameplay (cities, raids, zone transitions), this saves 50-160ms every 15 seconds. In quiet scenes with few new models loading, there is little to save because the game does fewer lookups.
The cache validates that archives are still alive before returning cached results, so if the game closes or reloads an archive, the cache falls through to the original search.
No configuration needed. Enabled by default when using `weirdutils.dll`.
**DLL:** `filecache.dll`
---
### Performance
Replaces 20+ internal math functions with SIMD (SSE/AVX) equivalents and swaps the game's 2004-era zlib with a modern decompression library (2.2x faster). Covers skeletal animation, particle rendering, frustum culling, collision detection, text glyph caching, and float-to-integer conversion. Most noticeable in cities, raids, and during zone transitions. No visual difference, no configuration needed. Included in `weirdutils.dll`.
Engine-level optimizations that reduce CPU time on math, rendering helpers, file lookups, and data decompression. No visual difference, no configuration needed. Included in `weirdutils.dll`.
---
- **SIMD Math** — replaces 20+ internal math functions with SSE/AVX equivalents covering skeletal animation, particle rendering, frustum culling, collision detection, text glyph caching, and float-to-integer conversion
- **Data Decompression** — swaps the game's 2004-era zlib with a modern library (2.2x faster). Loading screen times reduced by at least 13%
- **MPQ File Cache** — caches archive file lookups so repeat file opens skip the expensive archive chain walk. Cache hits cost ~1/30th of a full search, saving 50-160ms every 15 seconds during heavy gameplay
- **Timer Calibration** — recalibrates the TSC frequency using the OS performance counter for accurate animation timing. Requests higher OS timer resolution (0.5ms) and disables Windows 11 power throttling. Ported from [VanillaFixes](https://github.com/hannesmann/vanillafixes)
### Timer Calibration
Improves the game's internal timer precision by recalibrating the TSC (Time Stamp Counter) frequency using the OS performance counter as a reference. The vanilla client's built-in calibration is inaccurate, which can cause animation stutter and timing jitter on some systems.
Also requests higher OS timer resolution (0.5ms instead of the default 15.6ms) and disables Windows 11 power throttling for the game process.
Ported from [VanillaFixes](https://github.com/hannesmann/vanillafixes). Primarily benefits native Windows. On Wine/Linux the game typically uses GetTickCount instead of TSC, so this module enables TSC mode with a proper calibration.
No configuration needed. Included in `weirdutils.dll`.
Most noticeable in cities, raids, and during zone transitions.
---
@@ -300,7 +281,7 @@ WeirdUtils exports three functions for querying and disabling modules at runtime
Module names are case-insensitive and match the released dll names:
`customassets`, `framecrash`, `logsessions`, `transmogfix`, `minimapicons`, `healtextfix`, `bigcursor`, `worldmarkers`, `interact`, `outline`, `pngscreenshots`, `clickthrough`, `dpslog`
`customassets`, `framecrash`, `logsessions`, `transmogfix`, `minimapicons`, `healtextfix`, `bigcursor`, `worldmarkers`, `interact`, `outline`, `pngscreenshots`, `clickthrough`, `dpslog`, `filecache`, `performance`
There is no re-enable API.