[Clamav-devel] Best way to introduce feature to reduce memory footprint?

[Markus Kolb]

Am 08.09.2019 19:28, schrieb Per Jessen:

> This was discussed quite intensively on the openSUSE list just 
> recently:
> 
> Create /etc/systemd/system/clamd.service.d/memlimit.conf and add:
> 
> MemoryLimit=500M     (for instance)
> TimeoutSec=300s

I've also cheered too soon.
This doesn't always work as expected. ;-(

On forking the source process doesn't get/need cpu time any longer and 
always times out.
It breaks down from 100% to 0-2% and mostly dead process. So it times 
out.
The exact limit (300M,400M,700M,800M) doesn't matter.
The system is over 70% idle and real memory is enough free.
Looks like some bug (systemd/kernel) in openSUSE 15.0.
Or maybe because it is a KVM vhost? Don't know.
On a bare metal host with openSUSE 15.1 it works.