Testing response times to time.android.com from around the globe reveals
in ms:-
Europe <30
Middle East <68
North America <150
Johannesburg 183
Buenos Aires 220
Tokyo 226
Sydney 276
Hong Kong 285
Brisbane 295
Mumbai 349
Beijing 4691
Shanghai 4906
Russia n/a
Whilst time.android.com is NOT used for GPS NTP, North American time servers
are, by specifying north-america.pool.ntp.org as default in the framework,
to align with pixel devices. I am assuming similar response times to these
servers from around the world.
Great for North America and it appears Europe but it does not address the
global issue. Also, the pool.ntp.org project forbids both hardware and
software vendors from using these default zone names.
http://www.pool.ntp.org/en/vendors.html
It makes sense, therefore, to leverage the ntp.org's existing 'android' vendor
name to make the default ntp server for GPS purposes:
1.android.pool.ntp.org this will return a random but accurate NTP server in
close geopraphic proximity to the device.
Testing on my own build in the UK seems to improve hot and cold TTFF
considerably.
Change-Id: I144af45757efa35b32daf034eece6e046d2bde79
This repository contains device configuration for Xiaomi-SDM660 devices
Basic
Spec Sheet
CPU
Quad-core 1.84 GHz Qualcomm Kryo 260 LP
CPU
Quad-core 2.20 GHz Qualcomm Kryo 260 HP
Chipset
Qualcomm Snapdragon 660, SDM660
GPU
Adreno 512
ROM
32/64/128GB
RAM
3/4/6GB
Android
8.1.0
Notes:
Depends on: android_packages_resources_devicesettings from LineageOS
Depends on: LA.QSSI.11.0.r1-09100-qssi.0 tag for vendor_codeaurora_telephony
Depends on: LA.UM.9.6.2.r1-03600-89xx.0 tag for GPS and WFD
Currently Supported Devices:
clover (MI PAD 4 /4 Plus)
jason (Redmi Note 3)
jasmine_sprout (MI A2)
lavender (Redmi Note 7)
platina (Mi 8 Lite)
tulip (Redmi Note 6 Pro)
wayne (MI 6X)
whyred (Redmi Note 5)
Copyright
#
# Copyright (C) 2018 The LineageOS Project
# Copyright (C) 2018-2021 Xiaomi-SDM660 Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
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