scx-upstream/scheds
Andrea Righi 995577762a scx_bpfland: refill task time slice
Every time we need to dispatch a task re-evalate its time slice as:

 (unused_time_slice + min_time_slice) / 2

This allows to refill the time slice for tasks that haven't used much of
their previously assigned time, improving fairness.

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
2024-07-06 14:07:24 +02:00
..
c Merge pull request #412 from vax-r/flatcg_delta_fetch 2024-07-05 07:39:22 -10:00
include scx/compat.bpf.h: Fix __COMPAT_scx_bpf_consume_task() and improve scx_qmap example 2024-06-17 10:11:06 -10:00
rust scx_bpfland: refill task time slice 2024-07-06 14:07:24 +02:00
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