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Commit f65df964 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

init.rc: tune F2FS to be aligned to system settings 



Android sets /proc/sys/vm/dirty_expire_centisecs to 200, so f2fs
doesn't need to do checkpoint in 60 seconds.

Bug: 127511432
Change-Id: I2ba0623053d4480b82003eb1cca85ff03c61fc0f
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@google.com>
parent e6413fcd

rootdir/init.rc

+6 −0
Original line number Original line Diff line number Diff line
@@ -648,6 +648,12 @@ on boot 
    write /proc/sys/vm/dirty_expire_centisecs 200

    write /proc/sys/vm/dirty_expire_centisecs 200

    write /proc/sys/vm/dirty_background_ratio  5

    write /proc/sys/vm/dirty_background_ratio  5





    # F2FS tuning. Set cp_interval larger than dirty_expire_centisecs

    # to avoid power consumption when system becomes mostly idle. Be careful

    # to make it too large, since it may bring userdata loss, if they

    # are not aware of using fsync()/sync() to prepare sudden power-cut.

    write /sys/fs/f2fs/${dev.mnt.blk.data}/cp_interval 200



    # Permissions for System Server and daemons.

    # Permissions for System Server and daemons.

    chown radio system /sys/android_power/state

    chown radio system /sys/android_power/state

    chown radio system /sys/android_power/request_state

    chown radio system /sys/android_power/request_state