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

HRTKernel · Feb 27, 2020 · 6e5077b · 6e5077b
1 parent bfde7c5
commit 6e5077b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
@@ -271,6 +271,10 @@ void tcp_select_initial_window(int __space, __u32 mss,
 			init_rcv_wnd = tcp_default_init_rwnd(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_t(__u32, U16_MAX << (*rcv_wscale), *window_clamp);