17 Aug
2022
17 Aug
'22
10:49 p.m.
On Thu, Aug 18, 2022 at 10:46 AM Fangge Jin <fjin@redhat.com> wrote:
I can share some test results with you: 1. If no memtune->hard_limit is set when start a vm, the default memlock hard limit is 64MB 2. If memtune->hard_limit is set when start a vm, memlock hard limit will be set to the value of memtune->hard_limit 3. If memtune->hard_limit is updated at run-time, memlock hard limit won't be changed accordingly
And some additional knowledge: 1. memlock hard limit can be shown by ‘prlimit -p <pid-of-qemu> -l’ 2. The default value of memlock hard limit can be changed by setting LimitMEMLOCK in /usr/lib/systemd/system/virtqemud.service
Or /usr/lib/systemd/system/libvirtd.service here.
BR, Fangge Jin