Migrate to .NET 9

[marco-carvalho]

No description provided.

[github-actions]

Download the artifacts for this pull request:

• ryujinx-Release-1.2.0+17e9f2c-linux_arm64
• ryujinx-Release-1.2.0+17e9f2c-linux_arm64-AppImage
• ryujinx-Release-1.2.0+17e9f2c-linux_x64
• ryujinx-Release-1.2.0+17e9f2c-linux_x64-AppImage
• ryujinx-Release-1.2.0+17e9f2c-macos_universal
• ryujinx-Release-1.2.0+17e9f2c-win_x64

GUI-less

• nogui-ryujinx-Release-1.2.0+17e9f2c-linux_arm64
• nogui-ryujinx-Release-1.2.0+17e9f2c-linux_x64
• nogui-ryujinx-Release-1.2.0+17e9f2c-macos_universal
• nogui-ryujinx-Release-1.2.0+17e9f2c-win_x64

Only for Developers

• ryujinx-Debug-1.2.0+17e9f2c-linux_arm64
• ryujinx-Debug-1.2.0+17e9f2c-linux_arm64-AppImage
• nogui-ryujinx-Debug-1.2.0+17e9f2c-linux_arm64
• ryujinx-Debug-1.2.0+17e9f2c-linux_x64
• ryujinx-Debug-1.2.0+17e9f2c-linux_x64-AppImage
• nogui-ryujinx-Debug-1.2.0+17e9f2c-linux_x64
• ryujinx-Debug-1.2.0+17e9f2c-macos_universal
• nogui-ryujinx-Debug-1.2.0+17e9f2c-macos_universal
• ryujinx-Debug-1.2.0+17e9f2c-win_x64
• nogui-ryujinx-Debug-1.2.0+17e9f2c-win_x64

[WilliamWsyHK]

We should only merge this once .NET 9 has been released globally out of RC, and the version of the global.json is update again to match latest release version.

Meanwhile, we need more people to test and see what has happened, e.g. performance regression/broken game functionality.

[GreemDev]

We should only merge this once .NET 9 has been released globally out of RC, and the version of the global.json is update again to match latest release version.

Pretty sure that's why this was opened as a draft.

[marco-carvalho]

I opened this as a draft precisely because .NET 9 is still in RC; I’ll update the global.json to the latest release version once .NET 9 is officially out. Meanwhile, I’ll encourage additional testing to check for any performance regressions or broken functionality.

[bangfire]

There's some low hanging fruit you could probably add to this PR such as the new Lock object: https://learn.microsoft.com/en-us/dotnet/api/system.threading.lock?view=net-9.0

A quick find replace on object _lock has a a lot of hits that are free to update.

[mattzink]

Those warnings about Lock being upcast to object will result in runtime failures. You need to update the method signatures to Lock as well when you pass instances around.

[LukeWarnut]

LGTM. Seems to give a 1% FPS increase on my setup.

[mattzink]

I think all runtime synchronized packages (System.IO.Hashing and System.Managment) should be updated to 9.0.0 as well.

[LukeWarnut]

Improves performance in pretty much every game on my machine (i7-13620H, RTX 4070)

Super Mario Odyssey: +4.2 FPS
The Legend of Zelda: Echoes of Wisdom: +0.6 FPS
Mario Party Superstars +5.3 FPS
Balatro: +2.2 FPS
Minecraft: NSW Edition: +13.7 FPS

[ViRb3]

@marco-carvalho do you have any reference for "Linq.Any/Linq.FirstOrDefault are now faster than List.Exists/List.Find"? I tried to search but didn't find any existing article or benchmark.

On another note, just came across an article claiming ToArray is now always faster than ToList. Some instances can be changed in the code.

• https://code-corner.dev/2024/06/19/NET-9-ToList-vs-ToArray/

[marco-carvalho]

@ViRb3
SonarSource/sonar-dotnet#9664
SonarSource/sonar-dotnet#9665

[JWatersMeet]

FPS uplift from 86.5 to 93.4 on Densha de Go Stage Select screen with .NET 9 with frame rates unlocked on my system. I haven't found any issues in my library with this patch.

[legluondunet]

Will this changes break Linux compatibility?

[Daenorth]

Gives me around 10-15 more FPS in general Areas on Pokemon Violet - Don't see any regression or issues thus far.
Seems to stay more stable at higher FPS - drops down less in general. (Canary can drop down all the way to 80-85 in some areas. Net9 drops down to 98-105 at most)

[GreemDev]

Will this changes break Linux compatibility?

Uh, no? This PR even has linux builds available. What are you talking about?

[GreemDev]

What's the status on this? Is it ready for merge or are you still looking for ways to apply the new features?

[marco-carvalho]

It is ready for merge since I removed the “draft” status.