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From Harikrishna Patnala <harikrishna.patn...@citrix.com>
Subject Re: [proposal] Autoscaling CPU/RAM feature
Date Mon, 21 Oct 2013 10:46:48 GMT
Hi,
We have cpu and ram overcommit ratios that can be set. Hypervisor does the autoscaling based
on contention.

-Harikrishna

On 21-Oct-2013, at 10:13 AM, Nguyen Anh Tu <ng.tuna@gmail.com> wrote:

> Hi guys,
> 
> I read about the new feature on 4.2 version: "dynamic scaling of CPU and
> RAM" -
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Dynamic+scaling+of+CPU+and+RAM
> 
> I'm wonder why we don't support autoscaling CPU and RAM feature, which acts
> like the current autoscaling. Particularly, when deploying VM, users set
> memory_static_min and memory_static_max and ACS choose memory_dynamic_min
> and memory_dynamic_max, for
> example, memory_dynamic_min=memory_dynamic_max=memory_static_min. While
> running, if the VM is in pressure, ACS automatically
> change memory_dynamic_min, memory_dynamic_max based on pre-defined policy.
> 
> At configuration period, users may set these below parameters:
> 
> memory_static_min
> memory_static_max
> duration
> quiet time
> interval
> threshold
> ....
> 
> Any idea?
> 
> Cheers,
> 
> -- 
> 
> N.g.U.y.e.N.A.n.H.t.U


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