scx-upstream/scheds
David Vernet 9bb8e9a548
common: Pull bpf_log2l() into helper function header
scx_lavd implemented 32 and 64 bit versions of a base-2 logarithm
function. This is now also used in rusty. To avoid code duplication,
let's pull it into a shared header.

Note that there is technically a functional change here as we remove the
always inline compiler directive. We instead assume that the compiler
will know best whether or not to inline the function.

Signed-off-by: David Vernet <void@manifault.com>
2024-05-03 14:50:24 -05:00
..
c scheds/c: Sync to the new conventions 2024-04-29 10:13:46 -10:00
include common: Pull bpf_log2l() into helper function header 2024-05-03 14:50:24 -05:00
rust common: Pull bpf_log2l() into helper function header 2024-05-03 14:50:24 -05:00
meson.build Restructure scheds folder names 2023-12-17 13:14:31 -08:00
README.md Restructure scheds folder names 2023-12-17 13:14:31 -08:00
sync-to-kernel.sh sync-to-kernel.sh: Sync scx_central and scx_flatcg 2024-02-23 14:21:03 -10:00

SCHED_EXT SCHEDULERS

Introduction

This directory contains the repo's schedulers.

Some of these schedulers are simply examples of different types of schedulers that can be built using sched_ext. They can be loaded and used to schedule on your system, but their primary purpose is to illustrate how various features of sched_ext can be used.

Other schedulers are actually performant, production-ready schedulers. That is, for the correct workload and with the correct tuning, they may be deployed in a production environment with acceptable or possibly even improved performance. Some of the examples could be improved to become production schedulers.

Please see the following README files for details on each of the various types of schedulers:

  • rust describes all of the schedulers with rust user space components. All of these schedulers are production ready.
  • c describes all of the schedulers with C user space components. All of these schedulers are production ready.

Note on syncing

Note that there is a sync-to-kernel.sh script in this directory. This is used to sync any changes to the specific schedulers with the Linux kernel tree. If you've made any changes to a scheduler in please use the script to synchronize with the sched_ext Linux kernel tree:

$ ./sync-to-kernel.sh /path/to/kernel/tree