Hello, I need to implement a system which acts somewhat like a router, i.e. it grabs udp packets from the internet, processess them and then sends them on an ethernet via broadcast. Following the indications I got on a linux-kernel list thread, I did the packet recieving stuff using a mmaped packet socket. >From what I understand, that is a recieve-only interface, so it seems that I'm stuck with old sendto() for putting the packets back on the wire. I'd like to know if sendto() can do 20000 (small) packets/second on a fast MP machine (dual or maybe quad) which doesn't do much besides this routing process. If it can't, please tell me if there's any feasible way of implementing a kind of buffer, i.e. keeping recieved packets in a local buffer and sending them alltoghether when the buffer fills or after a timer expires (I'm thinking DMA to the NIC or something simmilar, as the buffer will contain the complete packets, with all the required packets). Thanks, Mihnea PS: feasible == not spending 1 month development time for a 1 microsecond/packet improvement. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
