Merge "Activity Manager now takes care of setting OOM values."

# Adjustments to the out-of-memory killer, for devices that are

# tight on memory.  These should not be used if not needed, as they

# can result in more paging.

on early-boot

    setprop ro.FOREGROUND_APP_MEM 1536

    setprop ro.VISIBLE_APP_MEM 2048

    setprop ro.PERCEPTIBLE_APP_MEM 2048

    setprop ro.HEAVY_WEIGHT_APP_MEM 2048

    setprop ro.SECONDARY_SERVER_MEM 4096

    setprop ro.BACKUP_APP_MEM 4096

    setprop ro.HOME_APP_MEM 4096

    setprop ro.HIDDEN_APP_MEM 5120

    setprop ro.EMPTY_APP_MEM 6144

on boot

    write /sys/module/lowmemorykiller/parameters/minfree 1536,2048,3072,4096,5120,6144

# set RLIMIT_NICE to allow priorities from 19 to -20

    setrlimit 13 40 40

# Define the oom_adj values for the classes of processes that can be

# killed by the kernel.  These are used in ActivityManagerService.

    setprop ro.FOREGROUND_APP_ADJ 0

    setprop ro.VISIBLE_APP_ADJ 1

    setprop ro.PERCEPTIBLE_APP_ADJ 2

    setprop ro.HEAVY_WEIGHT_APP_ADJ 3

    setprop ro.SECONDARY_SERVER_ADJ 4

    setprop ro.BACKUP_APP_ADJ 5

    setprop ro.HOME_APP_ADJ 6

    setprop ro.HIDDEN_APP_MIN_ADJ 7

    setprop ro.EMPTY_APP_ADJ 15

# Define the memory thresholds at which the above process classes will

# be killed.  These numbers are in pages (4k).

    # These are currently tuned for tablets with approx 1GB RAM.

    setprop ro.FOREGROUND_APP_MEM 8192

    setprop ro.VISIBLE_APP_MEM 10240

    setprop ro.PERCEPTIBLE_APP_MEM 12288

    setprop ro.HEAVY_WEIGHT_APP_MEM 12288

    setprop ro.SECONDARY_SERVER_MEM 14336

    setprop ro.BACKUP_APP_MEM 14336

    setprop ro.HOME_APP_MEM 14336

    setprop ro.HIDDEN_APP_MEM 16384

    setprop ro.EMPTY_APP_MEM 20480

    # Old values for phones.  Should probably be adjusted up for the next

    # phone version.

    #setprop ro.FOREGROUND_APP_MEM 2048

    #setprop ro.VISIBLE_APP_MEM 3072

    #setprop ro.PERCEPTIBLE_APP_MEM 4096

    #setprop ro.HEAVY_WEIGHT_APP_MEM 4096

    #setprop ro.SECONDARY_SERVER_MEM 6144

    #setprop ro.BACKUP_APP_MEM 6144

    #setprop ro.HOME_APP_MEM 6144

    #setprop ro.HIDDEN_APP_MEM 7168

    #setprop ro.EMPTY_APP_MEM 8192

# Write value must be consistent with the above properties.

# Note that the driver only supports 6 slots, so we have combined some of

# the classes into the same memory level; the associated processes of higher

# classes will still be killed first.

    write /sys/module/lowmemorykiller/parameters/adj 0,1,2,4,7,15

# Memory management.  Basic kernel parameters, and allow the high

# level system server to be able to adjust the kernel OOM driver

# paramters to match how it is managing things.

    write /proc/sys/vm/overcommit_memory 1

    write /proc/sys/vm/min_free_order_shift 4

    write /sys/module/lowmemorykiller/parameters/minfree 8192,10240,12288,14336,16384,20480

    chown root system /sys/module/lowmemorykiller/parameters/adj

    chmod 0664 /sys/module/lowmemorykiller/parameters/adj

    chown root system /sys/module/lowmemorykiller/parameters/minfree

    chmod 0664 /sys/module/lowmemorykiller/parameters/minfree

    # Set init its forked children's oom_adj.

    # Set init and its forked children's oom_adj.

    write /proc/1/oom_adj -16

    # Tweak background writeout