Re: [Xen-devel] XL low memory

["Dominic Russell" <GTA_doum@xxxxxxxxxxx>]

Hello,

 

My understanding of this parameter, is that it sets the starting amount of memory, and the maximum authorized.  The memory could be ballooned down anyway!  Is that the case?

I want to keep the balloon feature for now, because there is only two gigs of RAM on this computer...

 

Thanks,
Dominic

 

From: Ben Guthro

Sent: Wednesday, May 29, 2013 9:00 AM

To: Dominic Russell

Cc: xen-devel@xxxxxxxxxxxxxxxxxxx

Subject: Re: [Xen-devel] XL low memory

 

On Wed, May 29, 2013 at 1:22 AM, Dominic Russell <GTA_doum@xxxxxxxxxxx> wrote:
> Hello,
>
> With xl toolstack, is it possible to declare a low memory parameters, like
> we could with xend in the xend-config.sxp file, with the (dom0-min-mem)
> parameter?
>
> I did try to google this, but could only find information about the
> xend-config file, which xl does not read.
> I have a Dell server, on which I tested that the minimum it can go before
> crashing the kernel is 224mb, but the current minimum set in
> libxl_internal.h is only 128mb!  By the mean time, I changed the constant
> and recompiled 4.2.2.  To have a parameter would be easier :).

Hi,

You can do this with Xen command line parameters, at boot time.
See the first section of the following wiki page for reference:

http://wiki.xen.org/wiki/Xen_Best_Practices

Ben

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