scx/scheds
Daniel Hodges bce840d9e5 scx_layered: Add layer growth algo to layer bpf config
Add an enum for the layer growth algo to the bpf layer config. This will
be useful for implementing topology aware layer growth algorithms.
When selecting an idle CPU the current logic tries to keep tasks
local to LLC/NUMA node. However, for certain growth algorithms (ex:
RoundRobin) this is suboptimal. Adding the layer growth algorithm
will allow for different paths for CPU selection in the idle/preemption
paths.

Signed-off-by: Daniel Hodges <hodges.daniel.scott@gmail.com>
2024-09-25 12:00:24 -07:00
..
c scx_common_bpf: Append cast_mask() 2024-09-24 16:01:19 +08:00
include scx_common_bpf: Append cast_mask() 2024-09-24 16:01:19 +08:00
rust scx_layered: Add layer growth algo to layer bpf config 2024-09-25 12:00:24 -07:00
meson.build build: Use a single top-level rust workspace 2024-09-08 14:23:48 -10:00
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