A portable design of zero-copy packet capture technique based on PF_DMA
Hu Jing · Electronic Design Engineering · 2013
Zero-Copy technique has been widely used in packed-capture,it can increase network packet capture performance and decrease the consumption of system resource.This paper proposes an improved Zero-Copy method based on PF_DMA which is implemented by hook Linux kernel functions.This method avoids the modifications of the code of Linux kernel and NIC drivers.Experimental results show that this method keeps high efficient in packet capture and can be ported easily compared to PF_DMA.