The manpage for systemd.resource-control says nothing about CPUQuotaPerSecUSec and little about CPUQuotaPeriodUSec.
It says nothing either about being set with the value 'infinity', as it is in the clamav* systemd services, as you can see:
._. systemctl show clamav* | grep CPUQuota
CPUQuotaPerSecUSec=infinity
CPUQuotaPeriodUSec=infinity
CPUQuotaPerSecUSec=infinity
CPUQuotaPeriodUSec=infinity
What it does say is that CPUQuotaPeriodSec= sets the duration over which CPUQuota= time is measured.
But what difference would it make if it was set to 1ms or 100ms or 1000ms? What does value infinity do? And what difference does it make if CPUQuota is not set, as appears to be the case with the clamav* services?
