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Re: [Xen-users] Memory consumption of xend on x86_64

  • To: Sreeharsha Totakura <sreeharsha.totakura@xxxxxxx>
  • From: Rob Aronson <riaronson@xxxxxxxxx>
  • Date: Sun, 2 Aug 2009 20:15:43 -0700
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Sun, 02 Aug 2009 20:16:48 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

I think you can l limit the amount of ram consumed by dom0 on 64 bit hosts by modifying the kernel initialization statement in grub or lilo. just add the line dom0_mem=512M or something similar. You can also change the memory after initialization by running xm mem-set 0 512M and it should change dom0


On Thu, Jul 30, 2009 at 4:40 AM, Sreeharsha Totakura <sreeharsha.totakura@xxxxxxx> wrote:


On one of our servers which has 6GB RAM (dom0 RAM: 3GB), the xend service
is taking about 46% of the memory. Is this normal? We use xen on other
servers (8GB, 6GB RAM) too and in them xend is taking about 3% of the

This particular server if of x86_64 architecture where as the rest are of
i386. Is that the reason for xend taking so much RAM?

Sree Harsha Totakura
Member, Open Source Platform - TEG
Tata Consultancy Services
Ph:- +91-22-67782038
Mailto: sreeharsha.totakura@xxxxxxx
Website: http://www.tcs.com
Experience certainty.   IT Services
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