scx-upstream/scheds
David Vernet 0871a9525d
rusty: Add direct_greedy_numa flag
Users may want to toggle whether tasks can be temporarily sent to idle CPUs on
remote NUMA nodes. By default, we want it to be disabled as a task spanning
multiple NUMA nodes will end up having its working set spanning both nodes,
which is probably not desirable. However, in case a workload really wants to
encourage work conservation, let's add a flag that allows them to toggle it.

Signed-off-by: David Vernet <void@manifault.com>
2024-03-08 15:12:00 -06:00
..
c scx: Add compat support for SCX_KICK_IDLE and use it for idle CPU wakeups 2024-02-06 15:28:40 -10:00
include common: Cosmetic change for consistency 2024-02-23 10:55:00 -10:00
rust rusty: Add direct_greedy_numa flag 2024-03-08 15:12:00 -06:00
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