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[ale] VMware Server 2.0 resource usage calculations.
Here's hoping VMWare"does the right thing" as outlined in the  LWN
This has potential impact on OpenSSI as well
On Fri, Dec 12, 2008 at 12:19 PM, Brian Pitts <brian at polibyte.com> wrote:
> On Fri, 2008-12-12 at 09:30 -0500, Ed Landa wrote:
> > > I just installed a CentOS 5.2 guest today and did updates. VMware is
> > > telling me that the guest is using 25MB. Free on the guest tells me
> > > a totally different story.
> > IIRC, vmware actually consolidates identical pages across multiple
> > virtual machines. So, if you have an identical libc paged in on 3
> > machines, it only stores one copy in memory and references it from each
> > of the VMs. There is a stat to account for this, but I've forgotten the
> > term.
> Some developers were adding this capability more generically to the
> kernel , but it appears VMware has patented the idea. 
>  http://lwn.net/Articles/306704/
>  http://lwn.net/Articles/309155/
> Ale mailing list
> Ale at ale.org
James P. Kinney III
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