1# Copyright (C) 2021 The Android Open-Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15on init
16    # memory reserve tuning
17    write /proc/sys/vm/watermark_boost_factor 0
18    write /proc/sys/vm/min_free_kbytes 27386
19    write /proc/sys/vm/lowmem_reserve_ratio "0 0 0"
20    # khugepaged tuning
21    write /sys/kernel/mm/transparent_hugepage/khugepaged/scan_sleep_millisecs 60000
22
23on property:persist.vendor.zram.size=*
24    setprop vendor.zram.size ${persist.vendor.zram.size}
25
26on property:sys.boot_completed=1
27    swapon_all /vendor/etc/fstab.zram.${vendor.zram.size}
28
29on property:sys.boot_completed=1
30    chmod 444 /sys/kernel/debug/page_owner
31