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platform_system_core
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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
This commit is contained in:
Dianne Hackborn 2010-06-10 17:52:37 -07:00
parent 0659dd5625
commit 8b0ec20d6f
2 changed files with 38 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
rootdir/init.lowmem.rc Normal file
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@ -0,0 +1,19 @@
# 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

35
rootdir/init.rc
View File

@ -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