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https://github.com/maxiberta/kwin-system76-scheduler-integration
Notify the System76 Scheduler which app has focus so it can be prioritized
https://github.com/maxiberta/kwin-system76-scheduler-integration
kde kde-desktop kde-plasma kde-plasma-desktop kwin kwin-script linux plasma-desktop pop-os system76 ubuntu
Last synced: 3 months ago
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Notify the System76 Scheduler which app has focus so it can be prioritized
- Host: GitHub
- URL: https://github.com/maxiberta/kwin-system76-scheduler-integration
- Owner: maxiberta
- License: mit
- Created: 2022-05-11T00:03:19.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2024-04-25T15:40:39.000Z (10 months ago)
- Last Synced: 2024-04-25T16:51:07.155Z (10 months ago)
- Topics: kde, kde-desktop, kde-plasma, kde-plasma-desktop, kwin, kwin-script, linux, plasma-desktop, pop-os, system76, ubuntu
- Language: Shell
- Homepage:
- Size: 25.4 KB
- Stars: 32
- Watchers: 5
- Forks: 6
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# KWin Script for system76-scheduler Integration
[System76 Scheduler](https://github.com/pop-os/system76-scheduler) is a service which optimizes Linux's CPU scheduler and automatically assigns process priorities for improved desktop responsiveness.
This KWin Script interactively notifies [System76 Scheduler](https://github.com/pop-os/system76-scheduler) which app has focus via D-Bus, so it is prioritized.
# Limitations
The `system76-scheduler` service is published on the _systemwide D-Bus bus_; but [KWin Scripts](https://develop.kde.org/docs/extend/plasma/kwin/api/#functions) can only call D-Bus methods on the _user session bus_ (as far as I can tell).
This can be worked around by forwarding these specific messages from the _session bus_ to the _system bus_. See the installation instructions below.
# Installation
This KWin Script is [published at the KDE Store](https://store.kde.org/p/1789957) and can be downloaded and installed via "Get New Scripts" at the Window Management → KWin Scripts settings.
## Manual Installation
```sh
git clone https://github.com/maxiberta/kwin-system76-scheduler-integration.git
cd kwin-system76-scheduler-integration
kpackagetool6 --type KWin/Script -i .
```
or if updating:
```sh
kpackagetool5 --type=KWin/Script -u .
```
## D-Bus Workaround (forward messages from session bus to the system bus)
Save [this script](system76-scheduler-dbus-proxy.sh) as `~/.local/bin/system76-scheduler-dbus-proxy.sh` (or anywhere else), and make it executable:
```sh
chmod +x /usr/local/bin/system76-scheduler-dbus-proxy.sh
```
This script can be run manually; or can be installed as a systemd user service so that it runs automatically on login.
For example, save the following service definition as `~/.config/systemd/user/com.system76.Scheduler.dbusproxy.service`:
```systemd
[Unit]
Description=Forward com.system76.Scheduler session DBus messages to the system bus
[Service]
ExecStart=/usr/local/bin/system76-scheduler-dbus-proxy.sh
[Install]
WantedBy=default.target
```
And enable it:
```sh
systemctl --user enable --now com.system76.Scheduler.dbusproxy.service
```
# Usage
1. Install and configure [System76 Scheduler](https://github.com/pop-os/system76-scheduler).
2. Install this KWin script.
3. Activate the script at System Settings → Window Management → KWin Scripts (or run `kcmshell5 kwinscripts`).
4. Run the dedicated D-Bus proxy as described above.
5. Process priority (_niceness_) of focused apps should interactively update (e.g. check the `NICE` column in `System Activity`, `htop`, or any other process manager).