Commit 86152436 authored by Peter Lieven's avatar Peter Lieven Committed by Gerd Hoffmann

ui/vnc: set TCP_NODELAY

we currently have the Nagle algorithm enabled for all outgoing VNC updates.
This may delay sensitive updates as mouse movements or typing in the console.
As we currently prepare all data in a buffer and then send as much as we can
disabling the Nagle algorithm should not cause big trouble. Well established
VNC servers like TightVNC set TCP_NODELAY as well.
A regular framebuffer update request generates exactly one framebuffer update
which should be pushed out as fast as possible.
Signed-off-by: default avatarPeter Lieven <>
Signed-off-by: default avatarGerd Hoffmann <>
parent e4d50d47
......@@ -2914,6 +2914,7 @@ static void vnc_listen_read(void *opaque, bool websocket)
if (csock != -1) {
vnc_connect(vs, csock, false, websocket);
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