From cea56bb34766f899aebe5176e115da07f1ac56bc Mon Sep 17 00:00:00 2001
From: Jack Yu <jackyu@google.com>
Date: Wed, 12 Jan 2022 15:21:56 -0800
Subject: Added default TCP buffer size for Pixels

Bug: 213596972
Test: Manual
Change-Id: Ie7b3ba3714c9d121e95b8eb62c4b02649d7e80e2
---
 overlay/frameworks/base/core/res/res/values/config.xml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'overlay')

diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 5e2361e..b8966b4 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -279,4 +279,19 @@
           manually by the user. Off by default, since the expected haptic feedback may not be
           available on some devices. -->
     <bool name="config_enableHapticTextHandle">true</bool>
+
+    <!-- Configure tcp buffer sizes in the form:
+         rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
+         If this is configured as an empty string, the system default will be applied.
+
+         For now this config is used by mobile data only. In the future it should be
+         used by Wi-Fi as well.
+
+         Note that starting from Android 13, the TCP buffer size is fixed after boot up, and should
+         never be changed based on carriers or the network types. The value should be configured
+         appropriately based on the device's memory and performance. It is recommended to use lower
+         values if the device has low memory or doesn't support high-speed network such like LTE,
+         NR, or Wifi.
+    -->
+    <string name="config_tcp_buffers" translatable="false">2097152,6291456,16777216,512000,2097152,8388608</string>
 </resources>
-- 
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