Messages in this thread | | | Date | Fri, 10 Mar 2006 02:38:11 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: TSO and IPoIB performance degradation |
| |
Quoting r. Michael S. Tsirkin <mst@mellanox.co.il>: > Or does __tcp_ack_snd_check delay until we have at least two full sized > segments?
What I'm trying to say, since RFC 2525, 2.13 talks about "every second full-sized segment", so following the code from __tcp_ack_snd_check, why does it do
/* More than one full frame received... */ if (((tp->rcv_nxt - tp->rcv_wup) > inet_csk(sk)->icsk_ack.rcv_mss
rather than
/* At least two full frames received... */ if (((tp->rcv_nxt - tp->rcv_wup) >= 2 * inet_csk(sk)->icsk_ack.rcv_mss
-- Michael S. Tsirkin Staff Engineer, Mellanox Technologies - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |