CAJ | 학술논문

在 openstack 云环境下通过对网卡 I/O、处理器、内存和磁盘 I/O 几个方面进行对比分析，比较了KVM 虚拟机和物理机的性能差距。最后根据分析结果得出了 KVM 虚拟机更适合于网络 I/O、内存和处理器密集型任务，而不适合磁盘 I/O 密集型任务的结论，并发现随着虚拟机数量的增加网卡 I/O 和磁盘 I/O 的性能呈直线下降。
재 openstack 운배경하통과대망잡 I/O、처리기、내존화자반 I/O 궤개방면진행대비분석，비교료KVM 허의궤화물리궤적성능차거。최후근거분석결과득출료 KVM 허의궤경괄합우망락 I/O、내존화처리기밀집형임무，이불괄합자반 I/O 밀집형임무적결론，병발현수착허의궤수량적증가망잡 I/O 화자반 I/O 적성능정직선하강。
In this paper, the openstack cloud environment according to the analysis of the network I/O, CPU, memory and disk I/O aspects compares the performance gap between the KVM virtual machine and the physical machine. Finally , according to the results of the KVM virtual machine is more suitable for network I/O, memory and CPU intensive tasks, but not for disk I/O intensive tasks conclusion. And found that with the increasing number of virtual machine network I/O and disk I/O performance decreased linearly.