Mailing List Archive

Xen and Memory
Hello all,

I am new to this list and have a couple of questions,
that I did not find any answers in FAQ or docs:

1) I need to configure dom0 memory, but do not know
how to quantify it. Do I need to put all memory
to dom0? Mathematically speaking,

Mem(dom0) > Mem(dom1..domN) or
Mem(total) > Mem(dom0..domN)

2) How about swap space? Do you use nfs exported dir
from dom0 and install files in it for each domain
to swap? Or else?

3) In order to have UML running faster, I use /tmp
mounted on memory as a tmpfs with 2GB, and uml
guests are using that for swap files. Will this
approach make Xen any faster yet?

Many thanks!
--
Bye,
Fernando Maciel Souto Maior
fernando@araujo.com.br
http://www.araujo.com.br
+55+31 3270-5886
LPIC/1 # 31908

AVISO-------------------------------------------------------------
Esta mensagem pode conter informacao confidencial ou privilegiada.
Se voce nao for o destinatario ou a pessoa autorizada a receber
esta mensagem, nao pode usar, copiar ou divulgar as informacoes
nela contidas ou tomar qualquer acao baseada nessas informacoes.
Se voce recebeu esta mensagem por engano, favor avisar o remetente
imediatamente, respondendo o e-mail e em seguida apagando-o.
Obrigado pela cooperacao.

DISCLAIMER--------------------------------------------------------
This message may contain confidential and/or privileged information.
If you are not the addressee or authorized to receive this for the
addressee, you must not use, copy, disclose or take any action based
on any information herein. If you have received this message in
error, please advise the sender immediately by replying to this
e-mail and delete this message. Thank you for your cooperation.

------------------------------------------------------------------
This email was sent using SquirrelMail - http://squirrelmail.org

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
RE: Xen and Memory [ In reply to ]
> I am new to this list and have a couple of questions, that I
> did not find any answers in FAQ or docs:
>
> 1) I need to configure dom0 memory, but do not know
> how to quantify it. Do I need to put all memory
> to dom0? Mathematically speaking,
>
> Mem(dom0) > Mem(dom1..domN) or
> Mem(total) > Mem(dom0..domN)

The latter.

> 2) How about swap space? Do you use nfs exported dir
> from dom0 and install files in it for each domain
> to swap? Or else?

The normal practice is to give each guest its own dom0 LVM volume to
swap to.

Giving it a tmpfs to swap to would help, but its not as important as
with UML.

Ian

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