[Gllug] Xen - bit of a ramble

[Matthew Cooke]

>Bursting of RAM would be really handy.. Say my server has 4GiB RAM and 4
>domUs each with 500MiB, that's only ~2GiB so it would be desirable
>to allow a domU that needed it to use more than 500MiB -- the RAM is
>sitting wasted otherwise.  If I loaded another domU and there wasn't
>enough RAM left for its committed amount then some should be taken
>from another domU that is overcommitted, and replaced with swap.

In theory i agree with you, although in practice when this is possible like 
it is with virtuozzo it normally means commercial hosted packages are 
oversold, resulting in poor performance.

Matt.


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