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Peter Mitsis ea6adb6726 kernel: Add custom scheduler yield routines
Adds customized yield implementations based upon the selected
scheduler (dumb, multiq or scalable). Although each follows the
same broad outline, some of them allow for additional tweaking
to extract maximal performance. For example, the multiq variant
improves the performance of k_yield() by about 20%.

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
2025-01-07 18:24:09 +01:00
.github ci: bsim tests: Also trigger on module/hal_nordic changes 2024-12-23 01:02:02 +01:00
arch arch/xtensa: Add build-time validation of cache line kconfig 2025-01-06 20:33:04 +01:00
boards boards: nxp: mimxrt595_evk: configure DMA requests in INPUTMUX 2025-01-07 15:57:50 +01:00
cmake sca: added support for Polyspace tool 2025-01-07 14:13:13 +01:00
doc stream_flash: Enforce size to be explicitly present on init 2025-01-07 15:56:49 +01:00
drivers eth_nxp_enet_qos_mac: enable pass through of multicasts 2025-01-07 15:57:34 +01:00
dts dts: arm/nxp: Add Flexcan nodes to NXP MCXA156 dtsi file 2025-01-07 15:56:57 +01:00
include/zephyr kernel: Add method to dequeue from a dlist 2025-01-07 18:24:09 +01:00
kernel kernel: Add custom scheduler yield routines 2025-01-07 18:24:09 +01:00
lib lib: os: mpsc_pbuf: do not wait when spinlock is held 2025-01-06 06:53:52 +01:00
misc
modules modules: hal_nordic: nrfx: Compile NRFX_GPPI modules for 54lbsim 2025-01-07 11:52:12 +01:00
samples samples: sensor: Add support for temperature sensor on FRDM_MCXN236 2025-01-07 15:56:32 +01:00
scripts scripts: west_commands: patch: Use subprocess cwd 2025-01-07 14:12:57 +01:00
share sysbuild: cmake: modules: kconfig: Fix changed CMake API 2024-12-27 10:51:56 +01:00
snippets snippets: wifi-ipv4: Increase max polling sockets 2025-01-03 11:39:13 +01:00
soc soc: intel_adsp: tools: add cavstool.py fallback for PCI class 2025-01-07 15:58:26 +01:00
submanifests modules: nanopb: Move pip dependencies to optional module 2024-12-19 15:20:11 +01:00
subsys stream_flash: Enforce size to be explicitly present on init 2025-01-07 15:56:49 +01:00
tests tests: drivers: can: timing: enable full timing test on frdm_mcxa156 2025-01-07 15:56:57 +01:00
.checkpatch.conf checkpatch: Adapt the braces check to Zephyr 2024-12-30 21:46:47 +01:00
.clang-format clang-format: add more whitespace sensitive macros 2024-12-19 08:39:10 +01:00
.codechecker.yml tests: Add a CodeChecker config file 2024-09-12 10:04:05 +02:00
.codecov.yml
.editorconfig
.gitattributes
.gitignore scripts: ci: check_compliance: Add python lint/format check 2024-11-19 18:36:54 -05:00
.gitlint gitlint: do not allow treewide as an area in commit messages 2024-04-10 09:22:24 +02:00
.mailmap mailmap: missing entry for Manuel Argüelles 2024-08-05 18:36:50 -04:00
.ruff-excludes.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.ruff.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.yamllint
CMakeLists.txt security: Add default stack protection level 2024-12-20 12:37:20 +01:00
CODE_OF_CONDUCT.md
CONTRIBUTING.rst
Kconfig
Kconfig.constants kconfig: Add variables for integer constants 2024-07-27 20:49:15 +03:00
Kconfig.zephyr UF2: Enable support for Raspberry Pi RP2350 2024-12-23 23:57:57 +01:00
LICENSE
MAINTAINERS.yml maintainers: bluetooth: remove Andries as a bluetooth maintainer 2025-01-07 15:57:27 +01:00
README.rst README: drop the stray link underscores between badges 2024-09-26 15:20:39 +01:00
SDK_VERSION SDK_VERSION: Use Zephyr SDK 0.17.0 2024-10-22 19:04:37 -04:00
VERSION release: Zephyr v4.0.99 2024-11-16 13:40:34 +01:00
version.h.in version.h.in: Do not use @template@ 2024-05-24 18:05:41 -04:00
west.yml modules: hal_ethos_u: Update to latest Ethos-U rev 2025-01-07 10:10:05 +01:00
zephyr-env.cmd
zephyr-env.sh

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
         <source media="(prefers-color-scheme: light)" srcset="doc/_static/images/logo-readme-light.svg">
         <img src="doc/_static/images/logo-readme-light.svg">
       </picture>
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a href="https://scorecard.dev/viewer/?uri=github.com/zephyrproject-rtos/zephyr"><img src="https://api.securityscorecards.dev/projects/github.com/zephyrproject-rtos/zephyr/badge"></a>
   <a href="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml?query=branch%3Amain"><img src="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml/badge.svg?event=push"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks