Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//lib/systemd/system/ureadahead.service

 [Unit]
Description=Read required files in advance
DefaultDependencies=false
Conflicts=shutdown.target
Before=shutdown.target
Requires=ureadahead-stop.timer
RequiresMountsFor=/var/lib/ureadahead
ConditionVirtualization=no

[Service]
ExecStart=/sbin/ureadahead -q
# when profiling, give it three minutes after sending SIGTERM to write out the pack file
TimeoutStopSec=3m

[Install]
WantedBy=default.target