tcp_output: set initial TCP window size to 64K (speed improvement)

Signed-off-by: engstk <[email protected]> Signed-off-by: Joe Maples <[email protected]>
radcolor · Dec 10, 2019 · 7298121 · 7298121
1 parent 7d15c9e
commit 7298121
Showing 1 changed file with 3 additions and 0 deletions.
diff --git 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);
 }