cargo-asm VS imgui-rs

cargo asm might be useful here (if you can't use godbolt).

They should be inlined in release mode. You'd have to verify by checking the assembly, though, which could be done directly in the Rust playground or with a tool like cargo-asm.

You can use cargo asm - not sure if you can integrate it with VSCode, but even from a terminal it's a pretty convenient tool.

There's probably a built-in one somewhere, but I suspect it'd be easier just to install https://github.com/gnzlbg/cargo-asm

I don't know if there's a way to do a side by side comparison but cargo-asm uses the source mapping information from rustc to annotate chunks of assembly with it's respective rust code, though it's an imperfect process.

After that you would need some tools to help figure out how to achieve improvements. That will depend on your system and personal preferences. As the other commenter suggested, perf is a good choice on linux. I personally like to look at the generated assembly, using either cargo asm, godbolt, or just rust playground.

Doesn't this already exist? https://github.com/gnzlbg/cargo-asm

From the flamegraph, we knew which function was taking the majority of the time, which we briefly described above. We started by looking at the assembly code it generated to see if there were any opportunities to make it faster. We did this with cargo-asm.

You're best bet at the moment is probably using cargo-asm to inspect the function assembly to see when it is performing the correct TCO.

there is a good bindings for imgui

There are rust bindings for Dear Imgui. It's a great immediate mode gui that has been used in the gaming industry for tooling. It supports floating windows and such. And there is a lot of customisability to be had. The benefit of the immediate mode gui is that it is constructed and rendered separately from the rest of the logic. Allowing you to build out whatever the gui is for, separately. Then, the gui can be removed from the final build if that is what you want.

Looks like the culprit is imgui-winit-support: https://github.com/imgui-rs/imgui-rs/pull/716

I am trying to use the imgui crate (along with imgui-winit-support and imgui-wgpu) with wgpu. I have followed the imgui-wgpu example and have gotten everything to work on the native version of the project.

Currently, I have narrowed potential libraries to: 1. Flutter 2. FLTK 3. Relm (GTK) 4. iced 5. Slint 6. Imgui, Imgui-rs 7. and gtk-rs

Imgui, Imgui-rs

To move on to GUI dev, there's the Qt Framework, Eto.forms for C#; Rust has the ImGui wrapper for the C++ Dear ImGui library.

Have you looked into the imgui bindings for rust? imgui-rs

All the examples in the imgui repository use glium