[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-users] GRUB boot parameters: dom0_mem

  • To: xen-users@xxxxxxxxxxxxx
  • From: Alexandre Kouznetsov <alk@xxxxxxxxxx>
  • Date: Thu, 21 Jun 2012 00:09:05 -0500
  • Delivery-date: Thu, 21 Jun 2012 05:09:59 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

El 20/06/2012 11:33 p.m., Eric escribió:
Is there a minimum amount of vRAM that can/should be allocated to Dom0
(using the dom0_mem boot parameter) considering that I only want to host
one or two VM's?
The minimum amount or RAM I have given to Dom0 (Debian Etch? really small footprint) in Xen 3.0 times was 256M. The system was quite usable. Then raised it to 384MB, it allowed me to consider "let's say the hypervisor itself and Dom0 are consuming .5Gb of RAM, the rest can be dedicated to VMs".

Today I give Dom0 768MB of RAM, but the people in internets usually suggests to give it at least 2GB.

For reference, a typical RAM consumption for a just booted PV guest with 64-bit Debian Squeeze system, minimal installation (naked system with sshd) is around 100-120MB. Boots in less then 10 seconds.

Xen-users mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.