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Commit 0a0e5ea5 authored by Mathieu Chartier's avatar Mathieu Chartier
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Add Android Go defaults make file 

Go devices should inherit this file to provide good default settings
for providing the best experience on Android Go devices.

Bug: 67374015
Test: make and flash

Change-Id: I55f22735c70f69309ec77e5c3055e6747546c79a
parent 90e737c6

target/product/go_defaults.mk

0 → 100644
+57 −0
Original line number Diff line number Diff line 
#

# Copyright (C) 2017 The Android Open Source 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.

#



# Sets Android Go recommended default values for propreties.



# Set lowram options

PRODUCT_PROPERTY_OVERRIDES += \

     ro.config.low_ram=true \

     ro.lmk.critical_upgrade=true \

     ro.lmk.upgrade_pressure=40



# set threshold to filter unused apps

PRODUCT_PROPERTY_OVERRIDES += \

     pm.dexopt.downgrade_after_inactive_days=10





# Speed profile services and wifi-service to reduce RAM and storage.

PRODUCT_SYSTEM_SERVER_COMPILER_FILTER := speed-profile



# Always preopt extracted APKs to prevent extracting out of the APK for gms

# modules.

PRODUCT_ALWAYS_PREOPT_EXTRACTED_APK := true



# Use a profile based boot image for this device. Note that this is currently a

# generic profile and not Android Go optimized.

PRODUCT_USE_PROFILE_FOR_BOOT_IMAGE := true

PRODUCT_DEX_PREOPT_BOOT_IMAGE_PROFILE_LOCATION := frameworks/base/config/boot-image-profile.txt



# set the compiler filter for shared apks to quicken.

# Rationale: speed has a lot of dex code expansion, it uses more ram and space

# compared to quicken. Using quicken for shared APKs on Go devices may save RAM.

# Note that this is a trade-off: here we trade clean pages for dirty pages,

# extra cpu and battery. That's because the quicken files will be jit-ed in all

# the processes that load of shared apk and the code cache is not shared.

# Some notable apps that will be affected by this are gms and chrome.

# b/65591595.

PRODUCT_PROPERTY_OVERRIDES += \

     pm.dexopt.shared=quicken



# Default heap sizes. Allow up to 256m for large heaps to make sure a single app

# doesn't take all of the RAM.

PRODUCT_PROPERTY_OVERRIDES += dalvik.vm.heapgrowthlimit=128m

PRODUCT_PROPERTY_OVERRIDES += dalvik.vm.heapsize=256m