Commit 14869c38 authored Aug 23, 2005 by Dmitry Yusupov Committed by David S. Miller Aug 23, 2005

[TCP]: Do TSO deferral even if tail SKB can go out now.



If the tail SKB fits into the window, it is still
benefitical to defer until the goal percentage of
the window is available.  This give the application
time to feed more data into the send queue and thus
results in larger TSO frames going out.

Patch from Dmitry Yusupov <dima@neterion.com>.

Signed-off-by: David S. Miller <davem@davemloft.net>

parent f6fdd7d9

net/ipv4/tcp_output.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -925,10 +925,6 @@ static int tcp_tso_should_defer(struct sock sk, struct tcp_sock tp, struct sk_

		limit = min(send_win, cong_win);

		/* If sk_send_head can be sent fully now, just do it. */
		if (skb->len <= limit)
		return 0;

		if (sysctl_tcp_tso_win_divisor) {
		u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);

Admin message