[CentOS] Centos 5.2 and Xen

Ned Slider ned at unixmail.co.uk
Wed Jun 11 22:42:24 UTC 2008

Lanny Marcus wrote:

> Ned: I was very interested to read that you've run VMWare Server on
> systems with only 512 MB of RAM.   I haven't tried it, because the box
> I can use only has 512 MB of RAM.

Yes, assuming you give 256MB to a single VM guest and allow the CentOS 
host 256MB, you'll get about the level of performance that you'd expect 
for systems with that little RAM. They will run, but they won't be 
lightning quick so you will need to think about running services 
carefully and minimize memory usage where you can to prevent swapping.

1GB split between the host and gust would probably be a better sensible 
minimum given the current price of RAM, and for a new dual or quad core 
system I wouldn't really consider installing less than 4 GB given the 
current pricing.

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