I've started the unit with MemoryHigh=512M because MemoryLimit would kill the process
I see that systemd has accepted the parameter, but the process still takes 1.1G : Memory: 1.1G (high: 512.0M) as seen in the status report : # systemctl status clamav-daemon.service ● clamav-daemon.service - Clam AntiVirus userspace daemon Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor preset: enabled) Drop-In: /etc/systemd/system/clamav-daemon.service.d └─extend.conf Active: active (running) since Wed 2020-12-09 19:47:06 CET; 1min 9s ago Docs: man:clamd(8) man:clamd.conf(5) https://www.clamav.net/documents/ Process: 3650667 ExecStartPre=/bin/mkdir -p /run/clamav (code=exited, status=0/SUCCESS) Process: 3650676 ExecStartPre=/bin/chown clamav /run/clamav (code=exited, status=0/SUCCESS) Main PID: 3650686 (clamd) Tasks: 2 (limit: 18754) Memory: 1.1G (high: 512.0M) CGroup: /system.slice/clamav-daemon.service └─3650686 /usr/sbin/clamd --foreground=true déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> Portable Executable support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> ELF support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> Mail files support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> OLE2 support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> PDF support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> SWF support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> HTML support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> XMLDOCS support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> HWP3 support enabled. déc. 09 19:47:28 minipc clamd[3650686]: Wed Dec 9 19:47:28 2020 -> Self checking every 3600 seconds. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907312 Title: clamd takes 7% of ram To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1907312/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs