1 # 2 # Copyright (C) 2017 The Android Open Source Project 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 # 16 17 # Sets Android Go recommended default values for propreties. 18 19 # Set lowram options 20 ro.lmk.critical_upgrade=true 21 ro.lmk.upgrade_pressure=40 22 ro.lmk.downgrade_pressure=60 23 ro.lmk.kill_heaviest_task=false 24 ro.statsd.enable=true 25 26 # set threshold to filter unused apps 27 pm.dexopt.downgrade_after_inactive_days=10 28 29 # set the compiler filter for shared apks to quicken. 30 # Rationale: speed has a lot of dex code expansion, it uses more ram and space 31 # compared to quicken. Using quicken for shared APKs on Go devices may save RAM. 32 # Note that this is a trade-off: here we trade clean pages for dirty pages, 33 # extra cpu and battery. That's because the quicken files will be jit-ed in all 34 # the processes that load of shared apk and the code cache is not shared. 35 # Some notable apps that will be affected by this are gms and chrome. 36 # b/65591595. 37 pm.dexopt.shared=quicken 38 39 # Default heap sizes. Allow up to 256m for large heaps to make sure a single app 40 # doesn't take all of the RAM. 41 dalvik.vm.heapgrowthlimit=128m 42 dalvik.vm.heapsize=256m 43