io priority

[tincboy]

I know that we can set the io priority of a process with this command
ionice -c2 -nX -pProcessNumber

but every time the VM shutdowned or reseted the process number changes so Does KVM or Proxmox have any solution to always the VM starts with specified io priority ?

 

[dietmar]

no, currently not.

I am still looking for information about 'ionice' -

- does it work for block devices only?
- does it work on files ystems like ext3
- does it work for NFS?
- does it support all schedulers or only cfq?