From 72981213e3b0129dcc5293e13be5378223669119 Mon Sep 17 00:00:00 2001
From: andip71 <andreasp@gmx.de>
Date: Mon, 1 Aug 2016 11:13:06 +0200
Subject: [PATCH] tcp_output: set initial TCP window size to 64K (speed
 improvement)

Signed-off-by: engstk <eng.stk@sapo.pt>
Signed-off-by: Joe Maples <joe@frap129.org>
---
 net/ipv4/tcp_output.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e65c211d3f4b..afa65b099008 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -259,6 +259,9 @@ void tcp_select_initial_window(int __space, __u32 mss,
 		*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
 	}
 
+	/* Lock the initial TCP window size to 64K*/
+	*rcv_wnd = 64240;
+
 	/* Set the clamp no higher than max representable value */
 	(*window_clamp) = min(65535U << (*rcv_wscale), *window_clamp);
 }