On Wednesday 2011-12-14 11:46, raviraj joshi wrote: >On Wed, Dec 14, 2011 at 12:06 AM, David Miller wrote: >> >>>We have decided to use PF_RING(a kernel module to capture packets) >>>for the same due to the number of advantages. >> >>What "advantages"? The AF_PACKET socket layer already upstream in >>the kernel supports every relevant performance feature PF_RING >>does, and then some. > >I refered to the document on "A Measurement Study of Packet >Reception using Linux"[1] which said pf_ring maintains a ring >buffer, so we dont have to issue a receive system call for each >packet in contrast to AF_PACKET which issues a system call for each >packet(pls correct me if i am wrong). AF_PACKET has had mmap support for a loooong time. The initial code traces back to 2.3.15pre3 (1999-Aug-23). So much for $academia. >[1] >http://www.cs.wustl.edu/~jain/cse567-11/ftp/pkt_recp/index.html -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
