[Bug] ~5% Performance degradation in v1.2.80 vs. v1.2.78 in Zelda: Tears of the Kingdom

[usr20210909]

Description of the issue

Average FPS in latest v1.2.80 is around 5% lower than in previous v1.2.78 when benchmarking Legend of Zelda: Tears of the Kingdom (v1.2.1) in the Great Sky Island area.

Reproduction steps

1. Travel to Great Sky Island
2. Remove all clothes and weapons (for consistent benchmarking)
3. Run internal UltraCam flyby benchmark using "G" on the keyboard
4. Start capturing of frametimes using CapFrameX (v1.7.2) when flyby has started
5. After benchmark is done, remove last view seconds of recording when benchmark has finished but CapFrameX was still capturing

Repeat several times, select best benchmark results.

Log file

Ryujinx_1.2.80_2025-01-21_20-38-02.log

Ryujinx_1.2.78_2025-01-21_21-15-02.log

OS

Windows 11, version 24H2

Ryujinx version

1.2.80

Game version

1.2.1

CPU

AMD Ryzen 7 7800X3D

GPU

NVIDIA GeForce RTX 4070 SUPER

RAM

64GB

List of applied mods

UltraCam v2.6 (MaxFramerate = 120, Width = 2560, Height = 1440, ShadowResolution = 2048)

Additional context?

DRAM size set to 8 GB for stability when running at 1440p.

[GreemDev]

Not sure what would have caused this. Maybe the update to .NET 9? Oh well

[usr20210909]

I thought .NET 9 is going to improve the overall performance.

[GreemDev]

I thought .NET 9 is going to improve the overall performance.

Yeah, exactly. I don't make changes to the core emulation. Idk what else would have caused this.

[Otozinclus]

Maybe you can compare a few major Canary releases, to get more information about when this regression happened? Like, comparing the latest Canary with .net8 vs the first with .net9 could be useful to know