Re: [Xen-users] mem settings for dom0

[Zhiqiang Ma <cnfnxk@xxxxxxxxx>]

On Wed, Dec 1, 2010 at 9:45 PM, Mike Sievers <saturngeist@xxxxxxxxxxxxxx> wrote:
> Hi List,
>
> I have just two basic questions:
>
> 1) should I set for example dom0_mem=2048M at grub?

I always do this in our cluster:
http://fclose.com/b/2258/managing-xen-dom0s-cpu-and-memory/ . And I
also set the minimum memory size to it. And I disable dom0 memory
ballooning.

I have experience sshd crashes when ballooning out dom0's memory.
That's a nightmare, which means I must go and find out the machine and
configure is.

Another reason is that we allow some other users create/shutdown DomUs
by themselves. These user may not familiar with the machines. Dom0 may
be left too little memory and becomes quite slow.

By doing this, dom0 can use less memory to store memory metadata.

Thanks.
Eric

> 2) should I set xm mem-max 0 4000 ?
>
> irsh # dominfo 0
> Id:             0
> Name:           Domain-0
> UUID:           00000000-0000-0000-0000-000000000000
> OS Type:        linux
> State:          running
> CPU(s):         8
> CPU time:       115.3s
> Max memory:     4096000 kB
> Used memory:    2075136 kB
> Autostart:      disable
>
> ??
>
> Best regards,
> Mike
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>



-- 
http://fclose.com/zma/
Blog: http://fclose.com/b/

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users