[lxc-users] User input on resource limits for containers

[Joe McDonald]

We are using lxc to house a shared hosting environment.
Currently just limiting on CPU.

Most interested in limiting disk and network IO (separately)
Would also like to limit IO on a per user basis inside of the lxc container.
Ideally would like something like cloudlinux cagefs LVE:
http://docs.cloudlinux.com/understanding_lve.html
I do not know of any open source equivalent.

On Wed, Aug 5, 2015 at 8:53 AM, Stéphane Graber <stgraber at ubuntu.com> wrote:

> Hello,
>
> The LXD team is currently busy working on resource limitations and
> reporting.
> The goal is to design a user friendly experience around CPU, memory and
> I/O limits which doesn't require any specific understanding of the
> implementation (cgroup knobs, ...).
>
> As we are going through ideas, it would be very useful to us to know how
> LXC users are currently using resource limits (lxc.cgroup.*, ...), what's
> working for you and what isn't so we can try to improve things as much
> as possible.
>
>
> Here are a few questions to try and get things going. Please don't feel
> limited to those though, any feedback is appreciated!
>
>  - Are you using resource limits with LXC?
>
>  - What kind of resource limits are you setting (cpu, memory, I/O, ...)?
>
>  - Are you updating the resource limits of running containers?
>
>  - Are you reading the current resource usage of your containers?
>
>  - Are you using resource limits only to prevent containers from using
>    all the host resources or as a way to provide different tier of
>    containers, some faster than others?
>
>  - Would percentage based limits (percentage of the host resources) be
>    useful to you?
>
>  - Are you using the cpuset controller only as a way to limit the number of
>    CPUs exposed to the container or is pinning to specific physical CPUs
>    actually important to you?
>
>  - Would you be interested in being able to limit network IOps and
>    bandwidth for a container?
>
>  - Is the split between memory, swap and kernel memory useful to you?
>
>  - Would you like a way to prevent overprovisioning, causing container
>    failure if the stated resource limits exceeds what's available on the
>    host?
>
>
> Thanks!
>
> --
> Stéphane Graber
> Ubuntu developer
> http://www.ubuntu.com
>
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> lxc-users at lists.linuxcontainers.org
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>
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