Augustin Cavalier 38946ff82f bootloader: Increase the "large allocation" threshhold to 128 KB.
Not all platforms can properly release memory allocated via
platform_allocate_region() at present; in particular the BIOS
loader seems to (at least partially) leak it. And due to how the
kernel args ranges are handed off to the kernel, it seems
allocated physical pages that aren't virtually mapped are
leaked at present as well.

That seems like a bug that we should likely fix, and moreover
the heap shouldn't use that facility at all (but instead
request bootloader-local memory if possible; on the BIOS
loader that will ultimately go through similar logic, but
on e.g. EFI it will be entirely separate.)

But in the meantime, we can just increase the size of the
"large allocation" threshhold so that packagefs temporary buffers
(of 64 and 93 KB) stay on the main heap, and don't hit that
facility at all. The "maximum boot loader heap usage" seems
to go up by about ~200 KB with this change (e.g. 588 KB -> 797 KB),
so increase the default heap size by 256 KB to compensate.

This fixes most of the rest of #14831: memory usage after the
boot has finished is down by over 100 MB (!). The remaining
problems and leaks can be dealt with in later changes.
2024-10-09 22:19:45 -04:00
2024-10-05 08:08:07 +00:00
2018-01-04 00:04:02 -06:00
2021-06-13 21:06:58 +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.

Description
The Haiku operating system
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