cloudstack-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Tao Lin <linba...@gmail.com>
Subject Re: Does cloudstack support memory-overcommitting?
Date Thu, 11 Jul 2013 04:34:17 GMT
These links are quite useful, very appreciate, Kirk.


Best regards.


2013/7/11 Kirk Kosinski <kirkkosinski@gmail.com>

> Hi, I don't believe RAM over-provisioning is implemented yet.  There has
> been some discussion about it [1] and a functional spec was written [2],
> but AFAIK that is all that has been completed so far.
>
> The mem.overprovisioning.factor parameter doesn't do what it sounds like
> it does.  IIRC it only modifies the amount of host RAM that CloudStack
> will use so you can run non-CloudStack VMs on the host.  It won't
> actually let you run any extra VMs through CloudStack.  Also, I think it
> only has an effect with vSphere clusters.
>
> Best regards,
> Kirk
>
> [1] http://markmail.org/message/u6i5mdwyf42icsff
> [2] https://cwiki.apache.org/CLOUDSTACK/cpu-and-ram-overcommit.html
>
> On 07/10/2013 08:13 PM, Tao Lin wrote:
> > Thanks for your reply, Salvatore. I do notice that there is a option
> > relates to over-commit.And I now want to know that if cloudstack will
> > automatic balloon memory amount VMs, so that a busy VM can borrow memory
> > from another VM which is mostly idle by ballooning memory?
> >
> >
> > Best regard.
> >
> >
> > 2013/7/8 Salvatore Sciacco <sciacco@iperweb.com>
> >
> >> There is a global setting parameter afaik...
> >> Il giorno 08/lug/2013 11:45, "Tao Lin" <linbaiye@gmail.com> ha scritto:
> >>
> >>> Hi,there:
> >>>    Does cloudstack support memory-overcommitting so that memory
> resource
> >>> can be scheduled among VMs using the balloon device of the KVM? And how
> >>> cloudstack handle this?
> >>>
> >>>
> >>> Best regards.
> >>>
> >>
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message