Taegyu Hwang
Dongwan Shin
ABSTRACT
Credit scheduler, an original Xen virtual machine scheduler, uses a boost mechanism to improve responsiveness. However, the original boost mechanism is applied only to inactive virtual machines. Because of this, if virtual machine scheduling delay time increases, the I/O performance of an active virtual machine dramatically decreases. However, when the boost mechanism of a previous credit scheduler is applied to an active virtual machine, the allocation equality can become unbalanced. This research study proposes a boost mechanism that can be applied to an active virtual machine. Evaluation of the results showed that, when compared to the previous credit scheduler, the proposed method both did not upset the fairness of the CPU allocation between the virtual machines and improved the I/O performance.
- Chisnall David, The definitive guide to the xen hypervisor. Pearson Education, 2008 Google Scholar
Digital Library
- Hwanju Kim, Hyeontaek Lim, Jinkyu Jeong, Heeseung Jo amd Joowon Lee, "Task-aware virtual machine scheduling for I/O performance," The 2009 ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments, 2009 Google ScholarDigital Library
- Ryan Hnarakis, In Perfect Xen, "A Performance Study of the Emerging Xen Scheduler", Ph. D, Dissertation, the Faculty of California Polytechnic State University San Luis Obispo, 2013Google Scholar
- Diego Ongaro, Alan L. Cox and Scott Rixner, "Scheduling I/O in virtual machine monitors," The 2008 ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environments, 2008 Google ScholarDigital Library
Index Terms
- Virtual machine scheduling based on task characteristic
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