Give lxd container or vm prio

[ckruijntjens (Chris Kruijntjens)]

Hi All,

I have question. Is it possible to priorize the hardware available to a container or vm. So that that vm gets first resources avaible?

kind regards,

Chris Kruijntjens

[WereCatf]

@ckruijntjens

I have question. Is it possible to priorize the hardware available to a container or vm. So that that vm gets first resources avaible?

Depends on what resource you are talking about. For CPUs, disk I/O and networking you can set priority for containers – Linux Containers - LXD - Has been moved to Canonical I also suggested they add CPU-priority for VMs, but that isn’t (yet?) available.

[ckruijntjens (Chris Kruijntjens)]

For the io.

Is there default a io cap? or is the io truputh unlimit?
I experience some io slownes

[WereCatf]

…you could look at the link I gave you.

[ckruijntjens (Chris Kruijntjens)]

i did.

I read about the profiles. But is there somehow a hidden cap for the io?

[ckruijntjens (Chris Kruijntjens)]

sorry. my bad. i see the table.

thank you

[WereCatf]

No, there is no “hidden cap” for anything. The default priority is 5 and unless you have a profile with a different one or set it specifically for a container, then all the containers have the same priority and basically all of them can get as much I/O as they want.

[tomp (Thomas Parrott)]

We discussed something similar here

CPU-priority for VMs?

Is there some technical reason for why you can’t specify CPU-priority for VMs, or is it just that no one has implemented the feature? Most hypervisor-platforms allow you to do that for VMs, including KVM, and I wish I had the option with LXD as well. I just thought to ask, if a technical reason is preventing that from being implemented.