2010 IEEE Second International Conference on Cloud Computing Technology and Science (2010)
Indianapolis, Indiana USA
Nov. 30, 2010 to Dec. 3, 2010
In cloud computing environment, virtual machine technology is used as a means of flexibly assigning workloads to real machines based on the workloads' static profiles. Though this technology aims at flexible and dynamic resource sharing, memory is underutilized in cloud environments. We propose a virtual swap management mechanism (VSMM) that enables flexible and dynamic memory sharing via a local area network. The VSMM can virtualize swap devices seen by a guest operating system (OS), and transparently switch underlying physical devices to that OS. In this paper, we explain the VSMM architecture and provide details on our prototype implementation using the Xen open source hyper visor, open source iSCSI implementations, and logical volume management. Through various experiments, we demonstrate that VSMM can contribute to improving process performance and maximally utilizing the equipped memory in cloud environments.
Virtual Swap, Cloud Computing, memory sharing, iSCSI, LVM, ramfs
E. Kawai, T. Okuda and S. Yamaguchi, "A Mechanism of Flexible Memory Exchange in Cloud Computing Environments," 2010 IEEE Second International Conference on Cloud Computing Technology and Science(CLOUDCOM), Indianapolis, Indiana USA, 2010, pp. 75-80.