Augustin Cavalier a317b36cfc usb_disk: Use IOSchedulerSimple.
Unlike NVMe, USB disks are often slow, so we want the benefits
of the real I/O scheduler and asynchronous operations.

The downside is that all USB requests will be submitted as
physical, rather than virtual as some are at present. This
means that in some cases the bouncing will cause double-copying
unnecessarily. (However, it should be possible to avoid that
in all cases for XHCI at least.)

Change-Id: I7d827da7b5769d4ba988ae6cb3964e6c2190e56a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9611
Reviewed-by: waddlesplash <[email protected]>
Tested-by: Commit checker robot <[email protected]>
2025-08-27 16:56:11 +00:00
2025-08-16 08:11:50 +00:00
2025-07-24 14:11:13 +00:00
2025-08-27 16:56:11 +00:00

Haiku

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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.

Goals

  • Sensible defaults with minimal configuration required.
  • Clean, clear, concise code.
  • Unified desktop environment.

Trying Haiku

Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.

Compiling Haiku

See ReadMe.Compiling.

Contributing

Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!

Contributing code

If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.

If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:

Contributing documentation

The main piece of documentation that still needs work are the API docs (found in the tree at docs/user). Just find an undocumented class, write documentation for it, and submit a patch.

Contributing translations

See wiki:i18n.

Contributing software ports

See HaikuPorts.

Contributing to our infrastructure

See Infrastructure.

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