shark_tweaks

#!/sbin/busybox sh
#
# script optimi_remount.sh
#

# Remount noatime
  for k in $(/sbin/busybox mount | /sbin/busybox grep relatime | /sbin/busybox cut -d " " -f3)
  do
        sync
        /sbin/busybox mount -o remount,noatime $k
  done

# Remount opt EXT4
  for k in $(/sbin/busybox mount | /sbin/busybox grep ext4 | /sbin/busybox cut -d " " -f3)
  do
        sync
        /sbin/busybox mount -o remount,commit=15 $k
  done

#!/sbin/busybox sh
#
# Tweaks
#

# Miscellaneous tweaks
echo "16284" > /proc/sys/vm/min_free_kbytes
echo "1000" > /proc/sys/vm/dirty_writeback_centisecs
echo "500" > /proc/sys/vm/dirty_expire_centisecs
echo "0" > /proc/sys/vm/oom_kill_allocating_task
echo "0" > /proc/sys/vm/swappiness
sync
echo "3" > /proc/sys/vm/drop_caches

echo "8" > /proc/sys/vm/page-cluster
echo "10" > /proc/sys/fs/lease-break-time
echo "2048" > /proc/sys/kernel/msgmni
echo "64000" > /proc/sys/kernel/msgmax
echo "500 512000 64 2048" > /proc/sys/kernel/sem

echo "2" > /sys/devices/system/cpu/sched_mc_power_savings
echo "0" > /proc/sys/kernel/randomize_va_space
echo "3" > /sys/module/cpuidle_exynos4/parameters/enable_mask

# IPv6 privacy tweak
echo "2" > /proc/sys/net/ipv6/conf/all/use_tempaddr

# TCP tweaks
echo "0" > /proc/sys/net/ipv4/tcp_timestamps;
echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse;
echo "1" > /proc/sys/net/ipv4/tcp_sack;
echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle;
echo "1" > /proc/sys/net/ipv4/tcp_window_scaling;
echo "2" > /proc/sys/net/ipv4/tcp_syn_retries;
echo "2" > /proc/sys/net/ipv4/tcp_synack_retries;
echo "5" > /proc/sys/net/ipv4/tcp_keepalive_probes;
echo "10" > /proc/sys/net/ipv4/tcp_keepalive_intvl;
echo "10" > /proc/sys/net/ipv4/tcp_fin_timeout;
echo "404480" > /proc/sys/net/core/wmem_max;
echo "404480" > /proc/sys/net/core/rmem_max;
echo "256960" > /proc/sys/net/core/rmem_default;
echo "256960" > /proc/sys/net/core/wmem_default;
echo "4096 16384 404480" > /proc/sys/net/ipv4/tcp_wmem;
echo "4096 87380 404480" > /proc/sys/net/ipv4/tcp_rmem;

for i in $(/sbin/busybox find /sys/block/mmc*)
do
echo "0" > $i/queue/add_random
echo "0" > $i/queue/rotational
echo "8192" > $i/queue/nr_requests
echo "0" > $i/queue/iostats
echo "1" > $i/queue/iosched/back_seek_penalty
echo "2" > $i/queue/iosched/slice_idle
done

# Turn off debugging for certain modules
echo "0" > /sys/module/wakelock/parameters/debug_mask
echo "0" > /sys/module/userwakelock/parameters/debug_mask
echo "0" > /sys/module/earlysuspend/parameters/debug_mask
echo "0" > /sys/module/alarm/parameters/debug_mask
echo "0" > /sys/module/alarm_dev/parameters/debug_mask
echo "0" > /sys/module/binder/parameters/debug_mask
echo "0" > /sys/module/lowmemorykiller/parameters/debug_level
echo "0" > /sys/module/mali/parameters/mali_debug_level
echo "0" > /sys/module/ump/parameters/ump_debug_level

# Zero dumpstate files
/sbin/busybox cat /dev/null > /data/log/dumpstate_app_error.txt.gz.tmp
/sbin/busybox cat /dev/null > /data/log/dumpstate_app_native.txt.gz.tmp
/sbin/busybox cat /dev/null > /data/log/dumpstate_sys_watchdog.txt.gz.tmp
/sbin/busybox cat /dev/null > /data/log/dumpstate_app_anr.txt.gz.tmp
/sbin/busybox cat /dev/null > /data/log/dumpstate_app_error.txt.gz

# Change permissions to read-only for key dumpstate files
/sbin/busybox chmod 400 /data/log/dumpstate_app_error.txt.gz.tmp
/sbin/busybox chmod 400 /data/log/dumpstate_app_native.txt.gz.tmp
/sbin/busybox chmod 400 /data/log/dumpstate_sys_watchdog.txt.gz.tmp
/sbin/busybox chmod 400 /data/log/dumpstate_app_anr.txt.gz.tmp
/sbin/busybox chmod 400 /data/log/dumpstate_app_error.txt.gz

#!sh
#
# Tweaks Build
#

setprop net.dns1 8.8.8.8
setprop net.dns2 8.8.4.4

setprop ro.kernel.android.checkjni 0

setprop debug.performance.tuning 1
setprop video.accelerate.hw 1

setprop ro.media.enc.jpeg.quality 100
setprop ro.media.dec.jpeg.memcap 8000000
setprop ro.media.enc.hprof.vid.bps 8000000
setprop ro.media.dec.aud.wma.enabled 1
setprop ro.media.dec.vid.wmv.enabled 1
setprop ro.media.cam.preview.fps 0
setprop ro.media.codec_priority_for_thumb so

setprop ro.telephony.call_ring.delay 0

setprop wifi.supplicant_scan_interval 300
setprop ro.ril.disable.power.collapse 1
setprop pm.sleep_mode 1