Anh-Quynh Nguyen Kuniyasu Suzaki Xenprobus, a Lightweight User-Space Probing Framework for Xen Virtual Machine. 15-28 2007 conf/usenix/2007 USENIX Annual Technical Conference http://www.usenix.org/events/usenix07/tech/quynh.html db/conf/usenix/usenix2007.html#NguyenS07