[Xen-devel] Question about PoD and Transcendent Memory for HVM

[Kai Luo <luokain@xxxxxxxxx>]

Hi:

      I am working at the source code of Xen 4.1.3 and have two questions that confused me.

      I remembered a mail of XCP-mail-list which said when a hvm is created,xen allocate all memory it requests,which can guarantee the stability and Qos or something.However,when I come into the part of memory source code,I tind the existance of PoD,which can adjust memory dynamically,so I want to make sure whether the mechanism of memory management between XCP and Xen is differrent,Xen can adjust the memory size of HVM dynamically instead of a fixed memory size,am I right?

      I know the Transcendent Memory is a better techniche of memory reuse,is it used in xen for HVM now?

      Thank you for your answering!

Jeap

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