From d2e4bdc8704b0e711c5046a430bfd1681b0bd5a9 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Tue, 28 Nov 2006 14:37:38 -0800
Subject: [PATCH] [TCP] Vegas: Increase default alpha to 2 and beta to 4.

This helps Vegas cope better with delayed ACKs, see
analysis at:

http://www.cs.caltech.edu/%7Eweixl/technical/ns2linux/known_linux/index.html#vegas

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_vegas.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index a3b7aa015a2f..ddc4bcc5785e 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -42,8 +42,8 @@
  * with V_PARAM_SHIFT bits to the right of the binary point.
  */
 #define V_PARAM_SHIFT 1
-static int alpha = 1<<V_PARAM_SHIFT;
-static int beta  = 3<<V_PARAM_SHIFT;
+static int alpha = 2<<V_PARAM_SHIFT;
+static int beta  = 4<<V_PARAM_SHIFT;
 static int gamma = 1<<V_PARAM_SHIFT;
 
 module_param(alpha, int, 0644);
-- 
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