基于单根I/O虚拟化的密码设备中断频率优化方法

Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-06-19 Cooperative journals: 《计算机应用研究》

李帅 孙磊 郭松辉

Abstract： Aiming at the problem that the interrupt frequency in the virtual environment is too large to affect the cryptographic computing performance of the encryption device, this paper proposed a performance optimization method to reduce the interrupt frequency. Firstly, the method established the interrupt frequency control model and verified the rationality and correctness of the model through experiments. Then, based on a single root I/O virtualization, adding a speed monitoring module at the virtual function driving layer to monitor the change of the encryption speed in real time, and when the module detected that the encryption speed reduced, it automatically adjusted the upper limit of the virtual function interruption frequency to reduce the interruption frequency. The process reduced excessive I/O transfer consumption. The experimental results show that the adjustment of the upper limit of the interrupt frequency significantly improves the encryption speed of the I/O intensive encryption process.

 Hits 1842  Downloads 1065  Comment