Re: [Xen-devel] PV Memory allocated difference in kernel 2.6.18 and 3.2

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2014-05-27 at 00:48 +0530, mad Engineer wrote:
> Thanks Ian,
> 
> i think i started noticing the difference on centos 5.7(2.6.18) and
> Ubuntu 12.04 (3.2.0-48) thats why i posted that.
> 
> 
> Now as per you suggestion i created ubuntu 10.04 which is
> 2.6.32-60-generic

I suggested you try a 3.2 based SusE forward port kernel, of which
Ubuntu's 2.6.32 is neither. I'm afraid you are comparing apples to
oranges still.

> so now the comparison is between 2.6.18 and 2.6.32 but on different
> distros,not sure whether i can compare both.

> 
> Centos 5.7 is showing Zero wastage of RAM but ubuntu shows a slight
> difference. of ~19MB,where as ubuntu 12.04 shows a difference of ~23
> Mb.

How are you defining wastage here?

Ian.



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