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Commit 8b0ec20d authored by Dianne Hackborn's avatar Dianne Hackborn
Browse files

Update OOM adj levels. 

This introduces some new buckets that will be used by the activity
manager, and adjusts the default levels to match what we had been
setting for Droid.

It turns out Passion has been using the old levels, which makes no
sense for how much memory it has.  Also it is a problem with these
definitions spreading to other projects for different devices, so
I am going to update the defaults to be appropriate for our newer
devices, and put here a file to tune them down for something like
the sapphire.

Change-Id: Ia4f33c4c3b94aeb3656f60b9222072a1d11e9e68
parent 0659dd56

rootdir/init.lowmem.rc

0 → 100644
+19 −0
Original line number Diff line number Diff line 
# 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

rootdir/init.rc

+19 −16
Original line number Diff line number Diff line
@@ -179,32 +179,35 @@ on boot 
# killed by the kernel.  These are used in ActivityManagerService.

    setprop ro.FOREGROUND_APP_ADJ 0

    setprop ro.VISIBLE_APP_ADJ 1

    setprop ro.SECONDARY_SERVER_ADJ 2

    setprop ro.BACKUP_APP_ADJ 2

    setprop ro.HOME_APP_ADJ 4

    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.CONTENT_PROVIDER_ADJ 14

    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).

    setprop ro.FOREGROUND_APP_MEM 1536

    setprop ro.VISIBLE_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.CONTENT_PROVIDER_MEM 5632

    setprop ro.EMPTY_APP_MEM 6144

    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 HOME_APP at the

# same memory level as services.

    write /sys/module/lowmemorykiller/parameters/adj 0,1,2,7,14,15

# 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



    write /proc/sys/vm/overcommit_memory 1

    write /proc/sys/vm/min_free_order_shift 4

    write /sys/module/lowmemorykiller/parameters/minfree 1536,2048,4096,5120,5632,6144

    write /sys/module/lowmemorykiller/parameters/minfree 2048,3072,4096,6144,7168,8192



    # Set init its forked children's oom_adj.

    write /proc/1/oom_adj -16