pe-devices/device_xiaomi_sm6250-common
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sm6250-common: Configure zRAM using fstab

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* "32-bit overflow" CAF mentioned in the function wrapper inside post-boot
  script sounds very bs, since if it's 64-bit it won't be affected anyways

* We do the setup using fstab instead to allow setting up more flags such
  as setting up backing device and compression streams; as such kanged from
  Pixels

* zRAM size = 50% physical memory size to satisfy what CAF really wants

* Use LZ4 compression even for regular devices

Signed-off-by: Albert I <kras@raphielgang.org>
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>
Change-Id: Ia6efb3d28e56fb026d9b28fc6633b2eac77dfa47
This commit is contained in:
Albert I 2021-06-30 22:18:34 +08:00 committed by Alexander Winkowski
parent 0d8f538cbf
commit b09005f206
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GPG Key ID: 72762A66704CDE44
2 changed files with 13 additions and 1 deletions
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2
rootdir/etc/fstab.qcom
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@ -49,4 +49,4 @@ vendor /vendor
# The update_engine code looks for this entry in order to determine the boot device address
# and fails if it does not find it.
/dev/block/bootdevice/by-name/misc /misc emmc defaults defaults
/dev/block/zram0 none swap defaults zramsize=1073741824
/dev/block/zram0 none swap defaults zramsize=50%,zram_backingdev_size=512M

12
rootdir/etc/init.target.rc
View File

@ -155,5 +155,17 @@ on charger
chmod 0666 /sys/class/backlight/panel0-backlight/brightness
start vendor.power_off_alarm
on property:sys.boot_completed=1
# Read only one page at a time
write /proc/sys/vm/page-cluster 0
# Swap more aggressively
write /proc/sys/vm/swappiness 100
# Set zRAM compression algorithm to LZ4
write /sys/block/zram0/comp_algorithm lz4
# Enable zRAM data deduplication feature
write /sys/block/zram0/use_dedup 1
# Mount swap partitions specified in fstab
swapon_all /vendor/etc/fstab.qcom
on property:ro.boot.multisim_config=*
setprop persist.radio.multisim.config ${ro.boot.multisim_config}