rust-osdev / rust-osdev/bootloader
Writing to the framebuffer is slow on bare metal
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 1.7k
- Forks
- 240
- PR merge metrics
- No merged PRs in 30d
Description
Writing to the framebuffer is extremely slow on bare metal.
Setting the caching behavior of the framebuffer to write combining results in significantly higher throughput.
The framebuffer should either be setup to use write combining in the bootloader,
or it should be mentioned in the readme/migration guides.
(It took me quite some time to figure out that that was my bottle neck)
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by investigating the bootloader's framebuffer setup and the README or migration guides. Determine whether write combining should be configured by the bootloader or documented for users; done means the chosen approach addresses the reported bare-metal throughput problem or clearly explains the required configuration.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- operating-systems, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100