marlin: tune zram performance
-Switch to LZ4 for better overall performance
-Set max_comp_streams to num of cores since upstream also moves this to
percpu.
-Set page-cluster to 0 as the incremental cost of reading 1 page at a
time is negligible for zram
Bug: 38249616
Test: boot and run zram-perf showing better performance
Change-Id: I924a2f6523735196cac15e6c7b5a1ed4cfd9e3c3
diff --git a/fstab.aosp_svelte b/fstab.aosp_svelte
index 8b81605..2e37711 100755
--- a/fstab.aosp_svelte
+++ b/fstab.aosp_svelte
@@ -10,6 +10,6 @@
/dev/block/platform/soc/624000.ufshc/by-name/vendor /vendor ext4 ro,barrier=1 wait,slotselect
/dev/block/platform/soc/624000.ufshc/by-name/modem /firmware/radio vfat ro,shortname=lower,uid=1000,gid=0,dmask=227,fmask=337,context=u:object_r:firmware_file:s0 wait,slotselect
/dev/block/platform/soc/624000.ufshc/by-name/userdata /data ext4 noatime,nosuid,nodev,barrier=1,noauto_da_alloc latemount,wait,check,formattable,fileencryption=ice
-/dev/block/zram0 none swap defaults zramsize=536870912
+/dev/block/zram0 none swap defaults zramsize=536870912,max_comp_streams=4
/dev/block/platform/soc/624000.ufshc/by-name/misc /misc emmc defaults defaults
/devices/*/xhci-hcd.0.auto/usb* auto vfat defaults voldmanaged=usb:auto
diff --git a/fstab.common b/fstab.common
index 0c1111f..e3283dc 100755
--- a/fstab.common
+++ b/fstab.common
@@ -9,6 +9,6 @@
/dev/block/platform/soc/624000.ufshc/by-name/system / ext4 ro,barrier=1 wait,slotselect,verify
/dev/block/platform/soc/624000.ufshc/by-name/modem /firmware/radio vfat ro,shortname=lower,uid=1000,gid=0,dmask=227,fmask=337,context=u:object_r:firmware_file:s0 wait,slotselect
/dev/block/platform/soc/624000.ufshc/by-name/userdata /data ext4 noatime,nosuid,nodev,barrier=1,noauto_da_alloc latemount,wait,check,formattable,fileencryption=ice,quota
-/dev/block/zram0 none swap defaults zramsize=536870912
+/dev/block/zram0 none swap defaults zramsize=536870912,max_comp_streams=4
/dev/block/platform/soc/624000.ufshc/by-name/misc /misc emmc defaults defaults
/devices/*/xhci-hcd.0.auto/usb* auto vfat defaults voldmanaged=usb:auto
diff --git a/init.common.rc b/init.common.rc
index d438325..b99e875 100644
--- a/init.common.rc
+++ b/init.common.rc
@@ -80,6 +80,10 @@
mkdir /dev/socket/pdx/system/vr/pose 0775 system system
mkdir /dev/socket/pdx/system/vr/sensors 0775 system system
+ # ZRAM setup
+ write /sys/block/zram0/comp_algorithm lz4
+ write /proc/sys/vm/page-cluster 0
+
on fs
wait /dev/block/platform/soc/${ro.boot.bootdevice}
symlink /dev/block/platform/soc/${ro.boot.bootdevice} /dev/block/bootdevice
