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The Haiku operating system

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Augustin Cavalier 87a66be550 BFS: Optimize the search for the next free block. We already started at the first-free in the block bitmap, but after that we would just check individual bits as we went along. Now we skip forwards to the next free block when encountering a used block, by comparing to UINT32_MAX (all blocks used) and using ffs() with a bitwise NOT (to find the first unused block in a chunk.) This will benefit fragmented partitions more than non-fragmented ones. I didn't see a significant speedup on my compile benchmark in a VM. Fixes #18929. X512 tested this patch and confirmed it reduces CPU usage on a partition that he saw long times spent in AllocateBlocks on. Change-Id: If71b5e24c585c2cc08879c8aefc80af8ae7da91f Reviewed-on: https://review.haiku-os.org/c/haiku/+/8186 Reviewed-by: waddlesplash <waddlesplash@gmail.com> Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>		2024-10-09 17:59:59 +00:00
3rdparty	3rdparty/cloud: A few small fixes to sysprep-gcp	2024-09-25 16:54:00 -05:00
build	drivers/network: Rename "vmx" to "vmxnet" and clean up glue.	2024-10-09 13:40:20 -04:00
data	Update translations from Pootle	2024-10-05 08:08:07 +00:00
docs	docs/develop: Updates to Release Cookbook.	2024-08-20 13:38:10 -04:00
headers	arm64: Set MMU granule sizes to a consistent value in bootloader.	2024-09-30 15:48:51 +00:00
src	BFS: Optimize the search for the next free block.	2024-10-09 17:59:59 +00:00
.editorconfig
.gitignore	docs/develop/ide: A quick guide for haiku code completion	2023-12-05 20:02:07 +00:00
.gitreview	gerrit: Add .gitreview config	2018-01-04 00:04:02 -06:00
configure	configure: allow specifying python to use --with-python.	2024-09-16 16:57:03 +00:00
Jamfile	Updates in preparation for package sync on gcc2h.	2024-08-10 17:34:55 -04:00
Jamrules	Revert "Jamrules: Include the UserBuildConfig before processing repositories."	2019-09-15 17:33:36 +02:00
License.md
ReadMe.Compiling.md	Readme.Compiling.md: Mention the need for zstd and python3	2023-11-18 14:58:01 +01:00
ReadMe.md	ReadMe: Add Getting Involved link	2021-06-13 21:06:58 +00:00

ReadMe.md

Haiku

Homepage | Mailing Lists | IRC Channels | Issue Tracker | API docs

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:

https://xref.landonf.org/ (OpenGrok, provided by Landon Fuller)
https://git.haiku-os.org/ (git, provided by Haiku, Inc.)

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.