Tuesday, February 19, 2008

Xen: reclaiming dom0 memory

I've always experienced that starting and stopping several virtual hosts in a xen environment, memory is not always given back entirely to the dom0 domain. In the long run, this can lead to your dom0 bailing out of memory. Luckily, there's a trick

xm mem-set 0 1024

Sets back your dom0 memory to 1 Gb.

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