BlueHeisenberg / SCSKiller

SCSKiller 
 Shader Compilation Stutter Killer. SCSKiller compiles your games' shaders into your GPU driver's
 cache before you play, so the game doesn't stop to compile them mid-game. Free and open source, for Windows.
 Website 
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 Download 
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 Patreon 
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 Discord 
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 X 
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 Report a bug 
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 Request a game 
> [!WARNING]
> The only official downloads are this repository's Releases.
> See official links for the accounts and sites that belong to SCSKiller.
## Why
A game that meets a new effect has the GPU driver compile its shader on the spot, and the frame waits: that's shader
compilation stutter. SCSKiller reads the shaders a game ships with, works out the pipelines it will build, and compiles
them into the driver's cache ahead of time, in its own process with the game closed.
## Results
About 5 minutes of play per game, from a cold driver cache and after compiling with SCSKiller. A stutter is a shader
compile the game waited 20 ms or more for.
 Game GPU Measurement Cold With SCSKiller 
 Final Fantasy VII Rebirth NVIDIA RTX 5090 Stutters (≥ 20 ms) 19 0 
 Worst stall 76 ms 5 ms 
 AMD Ryzen AI Max+ 395 (Strix Halo) Stutters (≥ 20 ms) 162 0 
 Worst stall 291 ms 7 ms 
 Silent Hill: Townfall NVIDIA RTX 5090 Stutters (≥ 20 ms) 24 0 
 Worst stall 347 ms 8 ms 
 Hogwarts Legacy NVIDIA RTX 5090 Stutters (≥ 20 ms) 1,014 87 
 Worst stall 2,400 ms 100 ms 
 AMD Ryzen AI Max+ 395 (Strix Halo) Stutters (≥ 20 ms) 27,743 206 
 Worst stall 2,146 ms 104 ms 
 Tiny Tina's Wonderlands NVIDIA RTX 5090 Stutters (≥ 20 ms) 583 0 
 Worst stall 315 ms 13 ms 
 Star Wars Jedi: Survivor NVIDIA RTX 5090 Stutters (≥ 20 ms) 9,038 11 
Measured with SCSKiller's recorder. Your numbers depend on the game, GPU and driver. SCSKiller fixes shader compilation
stutter only, not traversal or streaming stutter, and a shader it couldn't find or record can still compile in game.
## Features
- **NVIDIA and AMD**, DirectX 12 games, and DirectX 11 games on NVIDIA.
- **Finds your games** in Steam, Epic Games, EA app, GOG, Ubisoft Connect, Xbox (PC), Battle.net, PURPLE, HoYoPlay,
 Gaijin and the Riot Client, plus games you add yourself.
- **Puts games known to stutter on top**, with the reason, and marks games whose engine prepares its shaders itself.
- **Compiles again after a driver update**, which clears the shader cache, on its own if you let it.
- **Optional recorder** for games whose pipelines its files don't give: play a few minutes with it on, then compile. It
 also records alongside a mod that replaces shaders.
- **Frame times per session**: with the recorder on, a game's page graphs your last session and marks shader stutters
 apart from other hitches. They stay on your PC.
- **Play button** that starts the game through its store.
- **Community shader hash database** for Patreon supporters: other players' recordings, so your games are covered
 without recording them first. Sharing yours is opt-in, anonymous and hash-only.
- **Leaves anti-cheat games alone** beyond reading their files: