kP2PADM: An In-Kernel Architecture of P2P Management Gateway

Managing increasing traffic from Instant Messengers and P2P applications is becoming more important nowadays. We present an inkernel architecture of management gateway, namely kP2PADM, built upon open-source packages with several modifications and design techniques. First, the in-kernel design streamlines the data path through the gateway. Second, the dual-queue buffer eliminates head-of-line blocking for multiple connections. Third, a connection cache reduces useless reconnection attempts from the peers. Fourth, a fast-pass mechanism avoids slowing down the TCP transmission. The in-kernel design approximately doubles the throughput of the design in the user space. The internal benchmarks also analyze the impact of each function on performance. key words: P2P/IM management, gateway, in-kernel implementation