huggingface/ratchet

Minimum number of copies from `Uint8Array` to `wgpu::Buffer`

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#171 opened on Apr 18, 2024

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help wanted

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Description

Currently in wgpu, there is no way to create a wgpu::Buffer directly from Uint8Array.

This means that our tensor data does something like this:

IndexedDB -> Uint8Array -> Vec<u8> ~~> Uint8Array -> WebGPU

Judging by this: https://developer.mozilla.org/en-US/docs/Web/API/GPUBuffer

I think the optimal is:

IndexedDB -> Uint8Array -> WebGPU

Reference: https://github.com/gfx-rs/wgpu/blob/trunk/wgpu/src/backend/webgpu.rs#L1821

Contributor guide

Research direction
Examine the buffer creation code in wgpu's webgpu backend (line 1821) and find a way to directly use the Uint8Array data without copying into Vec<u8>.
Tech stack
rust
Domain
web dev
Issue type
Performance
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75