I hope someone here can give me a pointer or two with an issue I’m having and how to get to the bottom of the issue.
I have a Qt application that works, so does the touch screen. The issue is that the time before the application launches is very slow (roughly 1 minute and 30 seconds). My goal is to speed this up.
I am using systemctl to start the application. The file is shown below:
[Unit]
Description=Application Service
After=networking.service
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/bash /etc/init.d/Application start &
[Install]
WantedBy=graphical.target
This works, the touchscreen works, but as I said the boot is very slow.
If I change this to
[Unit]
Description=Application Service
Before=networking.service
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/bash /etc/init.d/Application start &
[Install]
WantedBy=multi-user.target
The application still works, the time before the application launches is roughly half of what it was before, but the touch screen does not work. I’m struggling to narrow down how to locate whatever driver is not loading correctly or not loading in the correct order. Does anyone know how I could find this out?
systemctl list-dependencies Scanscale.service
Application.service
● ├─system.slice
● └─sysinit.target
○ ├─dev-hugepages.mount
● ├─dev-mqueue.mount
● ├─kmod-static-nodes.service
● ├─proc-sys-fs-binfmt_misc.automount
● ├─sys-fs-fuse-connections.mount
● ├─sys-kernel-config.mount
● ├─sys-kernel-debug.mount
● ├─sys-kernel-tracing.mount
● ├─systemd-ask-password-console.path
● ├─systemd-binfmt.service
● ├─systemd-firstboot.service
● ├─systemd-journal-flush.service
● ├─systemd-journald.service
○ ├─systemd-machine-id-commit.service
● ├─systemd-modules-load.service
● ├─systemd-network-generator.service
○ ├─systemd-pcrphase-sysinit.service
○ ├─systemd-pcrphase.service
○ ├─systemd-pstore.service
● ├─systemd-random-seed.service
○ ├─systemd-repart.service
● ├─systemd-sysctl.service
● ├─systemd-sysusers.service
● ├─systemd-tmpfiles-setup-dev.service
● ├─systemd-tmpfiles-setup.service
● ├─systemd-udev-trigger.service
● ├─systemd-udevd.service
● ├─systemd-update-utmp.service
● ├─cryptsetup.target
● ├─integritysetup.target
● ├─local-fs.target
● │ ├─-.mount
● │ ├─sys-kernel-debug.mount
○ │ ├─systemd-fsck-root.service
● │ └─systemd-remount-fs.service
● ├─swap.target
● └─veritysetup.target
The list of dependencies doesn’t change regardless of the order in systemctl. Any direction someone can give me is appreciated!