[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.

root at 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

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Mark Schouten  | Tuxis Internet Engineering
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