ab0e36f9ce
Julia pointed out that our current implementation of r_impatient is incorrect. r_impatient is meant to be a mechanism for more aggressively growing the primary nest if a task repeatedly isn't able to find a core. Right now, we trigger r_impatient if we're not able to find an attached or previous core in the primary nest, but we _should_ be triggering it only if we're unable to find _any_ core in the primary nest. Fixing the implementation to do this drastically decreases how aggressively we grow the primary nest when r_impatient is in effect. Reported-by: Julia Lawall <julia.lawall@inria.fr> Signed-off-by: David Vernet <void@manifault.com> |
||
|---|---|---|
| .. | ||
| c | ||
| include | ||
| rust | ||
| meson.build | ||
| README.md | ||
| sync-to-kernel.sh | ||
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