[PVE-User] mlock'ing VM processes

[Mark Schouten]

Hi,

I have issues on clusters with lots of Windows VM's, where the host
decides to swap VM memory in favor of (it seems) filecache.

***@proxmox05:~# free -m
total used free shared buffers cach
ed
Mem: 386874 382772 4101 326 0 2080
23
-/+ buffers/cache: 174749 212125
Swap: 8191 1775 6416

The customers are experiencing slower VM's because of parts of their
memory being swapped out.

It looks like libvirt has a solution to lock a VM's memory into 'real'
memory. [1] Is there a way we can make Proxmox do the same?


[1]:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/virtualization_tuning_and_optimization_guide/chap-virtualization_tuning_optimization_guide-memory-backing