bevyengine / bevyengine/bevy

Unexpected bad performance

Open
#3,687 13 comments 0 reactions 0 assignees View on GitHub
A-Rendering C-Bug C-Performance S-Needs-Investigation
Dominant language
Rust
Stars
48.2k
Forks
4.8k
Avg merge
3d 22h
Merged PRs (30d)
161

Description

## Bevy version
0.6

## Operating system & version
Windows 10.0.19043 Build 19043

## What you did
Compiled and ran the [many_cubes](https://github.com/bevyengine/bevy/blob/main/examples/3d/many_cubes.rs) example with opt-level=3 in debug mode and release mode

## What you expected to happen
The 3D scene is rendered at my monitor's refresh rate (60.056)

## What actually happened
Surprisingly low FPS

## Additional information
![image](https://user-images.githubusercontent.com/35463279/149642492-5e6ade90-09af-4196-8967-d903502c75c1.png)
`bevy_render::renderer: AdapterInfo { name: "Intel(R) UHD Graphics", vendor: 32902, device: 35414, device_type:
IntegratedGpu, backend: Vulkan }`

the FPS was about the same in release and in debug mode, it was not affected by turning off vsync

Contributor guide

Open the contributing guide

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.