RE: [Xen-users] Re: Large server, Xen limitations

["Robert Dunkley" <Robert@xxxxxxxxx>]

This assumes you use memory ballooning and moving memory allocations,
the problem does not occur with fix ram allocations although you need
quite alot of RAM to run fixed.

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Stefan de
Konink
Sent: 12 January 2009 16:42
To: aleksandar@xxxxxxxxxxxxx
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Re: Large server, Xen limitations

Aleksandar Ivanisevic wrote:
> Stefan de Konink wrote:
>> Aleksandar Ivanisevic wrote:
>>> Steve Thompson <smt@xxxxxxxxxxxx> writes:
>>>
>>>> - With a large number of guests, you have to be more careful with
>>>> their start/stop/start order to avoid the 'out of memory' error.
>>>
>>> Can you elaborate on this?
>>> I have a 8Gb server running a dozen or so VMs with combined memory
>>> usage (as reported by xm list) never over 6Gb and been getting
strange
>>> intermittent out of memory errors.
>>
>> Are you doing any operations on XenD? Or are you keeping your fingers

>> of the box?
> 
> This is a dedicated xen server. Practically nothing except xm  doesnt 
> get executed there.

That is exactly the issue I'm talking about. How often do you
save/migrate?


Stefan

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