Re: [Xen-users] swap size on dom0

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

Tomoki Taniguchi wrote:
> I have installed Xen on top of an Ubuntu Feisty Server Edition.
> The system has 4Gig of RAM.  Feisty by default sets up a
>  swap partition 2x~3x times the size of the RAM,
> which in this case ended up being nearly 10G.
>
> Is this much swap space necessary for running dom0?
>   
Nahhh. A bit of swap is always good, because Linux keeps the RAM 
occupied almost to its limit with various things "just in case", and a 
sudden demand for RAM can overwhelm that before it can be paged out and 
freed up for other use (such as starting my OpenOffice when somebody's 
busy compiling Xen and running a serious MySQL database under heavy 
load). And it's a lot cheaper than buying a few gig of RAM for those 
rare occasions.
But 10 Gig of RAM on a 4 Gig machine seems.... fairly excessive.

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