The authors would like to thank the NANOS project, the CEPBA-UPC team, and the I/O group, for performing the testing of the tools, as well as for their valuable feedback. Specially Xavier Martorell with its CPU manager, and Jordi Caubet with MPTrace. We also thank the GSOMK people for encouraging this research, and the CEPBA-UPC staff for its help during the evaluation.
Finally, we would also like to thank the anonymous referees for their insightful comments, as well as the USENIX shepherd Liuba Shrira for its help during the revision of the paper.