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Re: [Xen-users] memory allocation

To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Subject: Re: [Xen-users] memory allocation
From: Paras pradhan <pradhanparas@xxxxxxxxx>
Date: Wed, 4 Feb 2009 14:27:41 -0600
Cc: Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
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On Wed, Feb 4, 2009 at 6:17 AM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
> On Tue, Feb 3, 2009 at 12:44 AM, Paras pradhan <pradhanparas@xxxxxxxxx> wrote:
>> Its showing 345MB instead of 8GB.
> When domU starts it "takes away" memory from dom0. Meaning whenever
> (and after) any domU runs, dom0 will be left with less than total
> physical RAM. In your case, dom0 is left with only 345MB.
> Sometimes it's more desirable to limit dom0s memory from start and
> prevent it from changing. This is done using some settings on
> xend-config.sxp and kernel parameter.
>> xm info o/p:
>> total_memory           : 8165
>> free_memory            : 3583
> In your case :
> (1) What does "xm list" show?
> (2) What is the value of "dom0-min-mem" on /etc/xen/xend-config.sxp?
> (3) Have you ever start domUs which (together) takes up about 4.5 GB memory?
>> What do i need to do to make memory available to my host system from dom0?
> In your current state,
> xm mem-set 0 3G

This works.. But why the free memory at dom0 is not automatically
available to host.

> will tell dom0 to use available memory (as shown from xm info) up to
> 3G total. Try running "xm list" and "xm info" afterwards.
> Regards,
> Fajar


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