Hi
(Forgive me if this topic has been discussed before. I didn't find it in the archives) In tcp_input(), when a packet is received on an established socket the code re-arms the keep-alive timer, for each packet. Here: https://svnweb.freebsd.org/base/release/10.0.0/sys/netinet/tcp_input.c?revision=260789&view=markup#l1518 Isn't this a waste to do this for each packet? The setting of the timer when the connection becomes established should suffice if there was a small change in tcp_timer_keep(). If tcp_timer_keep() would first checks if tp->t_rcvtime is recent (newer than the TT_KEEPIDLE time), and would just re-arm the timer to go off later, then we would keep the same functionality. I can't think of any downsides to this idea. Any good reason why this hasn't been done before? Thanks, David Bar dbar at gmail dot com _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
