scx/scheds
Andrea Righi 5d15d34777 scx_rustland: charge additional time slice to new tasks
Instead of accounting (max_slice_ns / 2) to the vruntime of all the new
tasks, add that to thier regular weighted time delta, as an additional
penalty.

This allows to distinguish new CPU intensive tasks vs new less CPU
intensive tasks, and prioritize the latter over the former.

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
2024-01-03 22:54:10 +01:00
..
c scx_userland: Introduce ops.update_idle() callback 2024-01-02 16:29:19 -06:00
include scheds: c: improve build portability 2024-01-02 17:39:46 +01:00
rust scx_rustland: charge additional time slice to new tasks 2024-01-03 22:54:10 +01:00
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 Restructure scheds folder names 2023-12-17 13:14:31 -08:00

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