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From 7d51cb6760b760768aeb91dd81f10443d094bd6c Mon Sep 17 00:00:00 2001
From: Oleksandr Shneyder <o.schneyder@phoca-gmbh.de>
Date: Thu, 29 Jun 2017 10:08:56 +0200
Subject: [PATCH] nxcomp: Set TokenSize to 1536 for link type ADSL and WAN.
Improving non-xrender based browser scrolling behaviour when link type is
set to ADSL or WAN.
In the 40-ies (talking about release version numbers), Firefox started
using the Skia library [1] for client-side rendering of browser content.
With current versions of Firefox you can switch between libXrender based
rendering (esp. of Fonts) and Skia based rendering:
gfx.xrender.enabled = true|false
Some time around Firefox 52, the default for the gfx.xrender.enabled
setting got changed by Firefox upstream from true to false. So nowadays,
Firefox uses Skia by default.
However, it turns out that Skia scales really badly on remote X11
connections. Scrolling of long web pages becomes really jolty.
Something similar could be observed earlier already when using
Chrome or Chromium (which also has been using Skia for some time
now).
This change in nxcomp works around those issues and greatly
improves scrolling and general browser experience on medium
throughput networks (like cable modem, ADSL, HDSPA, slow LTE).
[1] https://en.wikipedia.org/wiki/Skia_Graphics_Engine
Fixes ArcticaProject/nx-libs#443.
Backported from Arctica GH 3.6.x branch.
v2: backport to nx-libs 3.5.0.x (Mihai Moldovan)
---
nxcomp/Loop.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/nxcomp/Loop.cpp
+++ b/nxcomp/Loop.cpp
@@ -13017,7 +13017,7 @@ int SetLinkAdsl()
control -> LinkMode = LINK_TYPE_ADSL;
- control -> TokenSize = 512;
+ control -> TokenSize = 1536;
control -> TokenLimit = 24;
control -> SplitMode = 1;
@@ -13047,7 +13047,7 @@ int SetLinkWan()
control -> LinkMode = LINK_TYPE_WAN;
- control -> TokenSize = 768;
+ control -> TokenSize = 1536;
control -> TokenLimit = 24;
control -> SplitMode = 1;
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