Hello everyone, I get connection time by running httperf tool. I noticed that if web server load is very high, the connection time on client machine which runs httperf will become great. If only one connection one http request, connection time will be just 600 microseconds on lan, due to RTT is around 200 microseconds. Big load on server, connection time grow to 60 milliseconds. That is huge difference, 100 times bigger. I guess client connection time = network RTT + server TCP stack process time + client TCP stack process time. By reading book <Unix network programming Networking APIs: Socket and XTI>, on Page 39 Figure 2.5 packet exchange for TCP connection, my understanding is that work is done inside TCP stack. I guess receive packets is handled inside NIC interrupt.If done in interrupt, how this will be effect by web server load? As interrupt is real time? How to lower client connection time? Thank you for your time to read my request. TIA Leigh - : 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
