[TWEAKS][SCRIPTS] Collection build.prop; init.d; etc. Now with Tewaks-Combo

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optik19918

optik19918

Senior Member
Jan 3, 2012
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I've been collecting some tweaks and scripts and seems to me it's now time to share it. While some values in terms of optimization might be different from device to device, I've found these pretty consistent throughout many.

I didn't tested all of them, and i don't assume any risk!!! Use them at you own risk!!!

Some useful tips on how to use them at the end of the post

This thread will be updated when new/better things come out

Superuser, Busybox install/update

1. Easily install Busybox (YOU NEED ROOT FIRST)
Code: 
https://play.google.com/store/apps/details?id=com.jrummy.busybox.installer&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5qcnVtbXkuYnVzeWJveC5pbnN0YWxsZXIiXQ..

2. UPDATE SuperUser (root app)
Code: 
http://goo.im/superuser/



Build.prop
(edit your /system/build.prop with a file manager with root access)

Careful for already existing settings. In this case, just change the values.

1. Force launcher into memory
Code: 
ro.HOME_APP_ADJ=1

2. Raise JPG quality to 100%
Code: 
ro.media.enc.jpeg.quality=100

3. VM Heapsize; higher the RAM, higher the hp can be
Code: 
dalvik.vm.heapsize=96m

4. Render UI with GPU
Code: 
debug.sf.hw=1

5. Decrease dialing out delay
Code: 
ro.telephony.call_ring.delay=0

6. Helps scrolling responsiveness
Code: 
windowsmgr.max_events_per_sec=150

7. Save battery
Code: 
wifi.supplicant_scan_interval=180
pm.sleep_mode=1
ro.ril.disable.power.collapse=0

8. Disable debugging notify icon on statusbar
Code: 
persist.adb.notify=0

9. Increase overall touch responsiveness
Code: 
debug.performance.tuning=1
video.accelerate.hw=1

10. Raise photo and video recording quality
Code: 
ro.media.dec.jpeg.memcap=12000000
ro.media.enc.hprof.vid.bps=12000000

11. Signal (3G) tweaks
Code: 
ro.ril.hsxpa=2
ro.ril.gprsclass=10 
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5

12. Net speed tweaks
Code: 
net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

13. Disable blackscreen issue after a call
Code: 
ro.lge.proximity.delay=25
mot.proximity.delay=25

14. Fix some application issues
Code: 
ro.kernel.android.checkjni=0

15. Phone will not wake up from hitting the volume rocker
Code: 
ro.config.hwfeature_wakeupkey=0

16. Force button lights on when screen is on
Code: 
ro.mot.buttonlight.timeout=0

17. Disable boot animation for faster boot
Code: 
debug.sf.nobootanimation=1

18. Miscellaneous flags
Code: 
ro.config.hw_menu_unlockscreen=false
persist.sys.use_dithering=0
persist.sys.purgeable_assets=1
dalvik.vm.dexopt-flags=m=y
ro.mot.eri.losalert.delay=1000

19. Specifics to some LG devices
Code: 
persist.service.pcsync.enable=0
persist.service.lgospd.enable=0
user.feature.flex=true
user.feature.lgdrm=false
user.feature.lgresource=false
user.feature.lgpoweroff=false
user.feature.ls_event=false
user.feature.ls_normal=false
user.feature.sui=false


Init.d
(needs ROM with init.d access and busybox, open empty file, insert header #!/system/bin/sh and put these there, save in /system/etc/init.d and name it something like 77tweaks)

1. strict minfree handler tweak
Code: 
echo "2048,3072,6144,15360,17920,20480" > /sys/module/lowmemorykiller/parameters/minfree

2. internet speed tweaks
Code: 
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 "5" > /proc/sys/net/ipv4/tcp_keepalive_probes;
echo "30" > /proc/sys/net/ipv4/tcp_keepalive_intvl;
echo "30" > /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;

3. vm management tweaks
Code: 
echo "4096" > /proc/sys/vm/min_free_kbytes
echo "0" > /proc/sys/vm/oom_kill_allocating_task;
echo "0" > /proc/sys/vm/panic_on_oom;
echo "0" > /proc/sys/vm/laptop_mode;
echo "0" > /proc/sys/vm/swappiness
echo "50" > /proc/sys/vm/vfs_cache_pressure
echo "90" > /proc/sys/vm/dirty_ratio
echo "70" > /proc/sys/vm/dirty_background_ratio

4. misc kernel tweaks
Code: 
echo "8" > /proc/sys/vm/page-cluster;
echo "64000" > /proc/sys/kernel/msgmni;
echo "64000" > /proc/sys/kernel/msgmax;
echo "10" > /proc/sys/fs/lease-break-time;
echo "500,512000,64,2048" > /proc/sys/kernel/sem;

5. battery tweaks
Code: 
echo "500" > /proc/sys/vm/dirty_expire_centisecs
echo "1000" > /proc/sys/vm/dirty_writeback_centisecs

6. EXT4 tweaks (greatly increase I/O)
(needs /system, /cache, /data partitions formatted to EXT4)

a) removes journalism
Code: 
tune2fs -o journal_data_writeback /block/path/to/system
tune2fs -O ^has_journal /block/path/to/system
tune2fs -o journal_data_writeback /block/path/to/cache
tune2fs -O ^has_journal /block/path/to/cache
tune2fs -o journal_data_writeback /block/path/to/data
tune2fs -O ^has_journal /block/path/to/data

b) perfect mount options
Code: 
busybox mount -o remount,noatime,noauto_da_alloc,nodiratime,barrier=0,nobh /system
busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /data
busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /cache

7. Flags blocks as non-rotational and increases cache size
Code: 
LOOP=`ls -d /sys/block/loop*`;
RAM=`ls -d /sys/block/ram*`;
MMC=`ls -d /sys/block/mmc*`;
for j in $LOOP $RAM
do
echo "0" > $j/queue/rotational;
echo "2048" > $j/queue/read_ahead_kb;
done

8. microSD card speed tweak
Code: 
echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb;

9. Defrags database files
Code: 
for i in \
`find /data -iname "*.db"`
do \
sqlite3 $i 'VACUUM;'; 
done

9. Remove logger
Code: 
rm /dev/log/main

10. Ondemand governor tweaks
Code: 
SAMPLING_RATE=$(busybox expr `cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency` \* 750 / 1000)
echo 95 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold
echo $SAMPLING_RATE > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate

11. Auto change governor and I/O Scheduler

a) I/O Scheduler (Best: MTD devices - VR; EMMC devices - SIO) - needs kernel with these
Code: 
echo "vr" > /sys/block/mmcblk0/queue/scheduler
or
echo "sio" > /sys/block/mmcblk0/queue/scheduler

b) Governor (Best: Minmax > SavagedZen > Smoothass > Smartass > Interactive) - needs kernel with these
Code: 
echo "governor-name-here" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

12. Auto-zipalign on boot
(needs zipalign bin)
Code: 
[url]http://xdaforums.com/showthread.php?t=860586[/url]

13. Loopy Smoothness tweak
Code: 
[url]http://xdaforums.com/showthread.php?t=1137554[/url]
[url]http://xdaforums.com/showthread.php?t=1205744[/url]

14. Move dalvik-cache to cache partition (if it's big enough) to free up data partition space
Code: 
CACHESIZE=$(df -k /cache | tail -n1 | tr -s ' ' | cut -d ' ' -f2)
if [ $CACHESIZE -gt 80000 ]
	then
	echo "Large cache detected, moving dalvik-cache to /cache"
	if [ ! -d /cache/dalvik-cache ]
		then
		busybox rm -rf /cache/dalvik-cache /data/dalvik-cache
		mkdir /cache/dalvik-cache /data/dalvik-cache
		fi

	busybox chown 1000:1000 /cache/dalvik-cache
	busybox chmod 0771 /cache/dalvik-cache

	# bind mount dalvik-cache so we can still boot without the sdcard
	busybox mount -o bind /cache/dalvik-cache /data/dalvik-cache
	busybox chown 1000:1000 /data/dalvik-cache
	busybox chmod 0771 /data/dalvik-cache
	else
	echo "Small cache detected, dalvik-cache will remain on /data"
fi

15. Disable normalize sleeper
Code: 
mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

16. OOM groupings and priorities tweaks - SuperCharger
Code: 
[url]http://xdaforums.com/showthread.php?t=991276[/url]


GPS.conf
(create or edit your /system/etc/gps.conf with a file manager with root access)

For improving GPS lock time and signal.

a) European NTP server (replace for america or asia in your case)
Code: 
NTP_SERVER=europe.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin

b) SE supl for A-GPS (better than Nokia's or Google's)
Code: 
SUPL_HOST=supl.sonyericsson.com
SUPL_PORT=7275


Other tweaks or guidelines

1. Patch your hosts file for blocking Ads
(please think before doing this; many developers are supported through this way)
Code: 
You can use AdFree application for this or changing manually your hosts file.

Here are some databases:
http://www.mvps.org/winhelp2002/hosts.txt
http://pgl.yoyo.org/adservers/serverlist.php?showintro=0;hostformat=hosts

2. Use CyanogenMOD's APN list file - it's one of the most complete.
Code: 
It's located in /system/etc/apns-conf.xml

3. Use UOT kitchen for basic theming on your device.
Code: 
http://uot.dakra.lt/

4. Use Google's dns servers
Code: 
Create an empty file, name it resolv.conf and put there these 2 lines:
nameserver 8.8.8.8
nameserver 8.8.4.4

Save to /system/etc/.

5. Update Superuser and su binary to latest version (3.0 beta)
Code: 
http://goo-inside.me/superuser/

6. Disable sync feature in sqlite
(author: ownhere - needs a source for your device so you can compile the /system/lib/libsqlite.so)
Code: 
Patch file here: http://xdaforums.com/showthread.php?t=903507

7. Do not use task killers.

sysctl_tweaks and sysctl.conf tweaks
added by krabappel2548 Thank him

To make them work:
1. make a new file in /system/etc/init.d, name it sysctl_tweaks
2. make a new file in /system/etc, name it sysctl.conf
3. Paste the right code in the right file ;)

1. sysctl_tweaks
Code: 
#!/system/bin/sh
# grep sysctl /etc/init.d/*
/etc/init.d/02vm:# Load /sys/etc/sysctl.conf
/etc/init.d/02vm:sysctl -p

2. sysctl.conf
Code: 
#sysctl.conf file

############################
#    Battery life tweaks   #
############################
sysctl -w vm.dirty_writeback_centisecs=3000;
sysctl -w vm.dirty_expire_centisecs=500;

############################
#      kernel tweaks       #
############################

sysctl -w kernel.sched_features=15834233;
sysctl -w kernel.msgmni=1024;
sysctl -w kernel.msgmax=64000;
sysctl -w kernel.shmmax=268435456;
sysctl -w kernel.shmall=2097152;
sysctl -w kernel.sem="500 512000 100 2048";
sysctl -w kernel.hung_task_timeout_secs=0;
sysctl -w kernel.sched_latency_ns=18000000;
sysctl -w kernel.sched_compat_yield=1;
sysctl -w kernel.sched_shares_ratelimit=256000;
sysctl -w kernel.sched_child_runs_first=0;
sysctl -w kernel.threads-max=10000;
sysctl -w kernel.panic=30;
sysctl -w kernel.panic_on_oops=1;
sysctl -w kernel.sched_features=24189;
sysctl -w kernel.sched_min_granularity_ns=1500000;
sysctl -w kernel.sched_wakeup_granularity_ns=3000000;

############################
#        CPU tweaks        #
############################

# Queue size modifications
sysctl -w net.core.optmem_max=20480;
sysctl -w net.unix.max_dgram_qlen=50;

# Net Core Settings
# Location: /proc/sys/net/core
sysctl -w net.core.wmem_max=524288;
sysctl -w net.core.rmem_max=524288;
sysctl -w net.core.rmem_default=256960;
sysctl -w net.core.wmem_default=256960;

############################
#  VM & Filesystem tweaks  #
############################
sysctl -w fs.lease-break-time=10;
sysctl -w fs.file-max=65536;
sysctl -w vm.overcommit_memory=1;
sysctl -w vm.min_free_order_shift=4;
sysctl -w vm.block_dump=0;
sysctl -w vm.oom_dump_tasks=1;
sysctl -w vm.page-cluster=3;

############################
#     Net Speed tweaks     #
############################

# UnderUtilized Networking Tweaks below as recommended by avgjoemomma (from XDA)
sysctl -w net.ipv4.tcp_congestion_control=cubic;    
   
# Hardening the TCP/IP stack to SYN attacks
sysctl -w net.ipv4.tcp_syncookies=1;
sysctl -w net.ipv4.conf.all.rp_filter=1;
sysctl -w net.ipv4.conf.default.rp_filter=1;
sysctl -w net.ipv4.tcp_synack_retries=2;
sysctl -w net.ipv4.tcp_syn_retries=2;
sysctl -w net.ipv4.tcp_max_syn_backlog=1024;
sysctl -w net.ipv4.tcp_max_tw_buckets=16384;            
sysctl -w net.ipv4.icmp_echo_ignore_all=1;              
sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1; 
sysctl -w net.ipv4.tcp_no_metrics_save=1;               
sysctl -w net.ipv4.tcp_fin_timeout=15;
sysctl -w net.ipv4.tcp_keepalive_time=1800;
sysctl -w net.ipv4.ip_forward=0;      
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1;       
sysctl -w net.ipv4.route.flush=1;
sysctl -w net.ipv4.udp_rmem_min=6144;
sysctl -w net.ipv4.udp_wmem_min=6144;
sysctl -w net.ipv4.tcp_rfc1337=1;
sysctl -w net.ipv4.ip_no_pmtu_disc=0;
sysctl -w net.ipv4.tcp_ecn=0;
sysctl -w net.ipv4.tcp_sack=1;
sysctl -w net.ipv4.tcp_fack=1;
              
# Don't accept source routing
sysctl -w net.ipv4.conf.default.accept_source_route=0 ;
sysctl -w net.ipv4.conf.all.accept_source_route=0;

# Don't accept redirects
sysctl -w net.ipv4.conf.all.accept_redirects=0;
sysctl -w net.ipv4.conf.default.accept_redirects=0;
sysctl -w net.ipv4.conf.all.secure_redirects=0;
sysctl -w net.ipv4.conf.default.secure_redirects=0;

This is another init.d tweak ;) It's a battery calibration script

3. This is my battery calibration tweak
Code: 
#!/system/bin/sh
# ========================================
# init.d script for KA Xperia SSpeed 
# made by krabappel2548
# ========================================

SLEEP=120

if [ -e /data/.battery-calibrated ] ; then
        exit 0
fi

(
while : ; do
        LEVEL=$(cat /sys/class/power_supply/battery/capacity)
        CUR=$(cat /sys/class/power_supply/battery/batt_current)
        if [ "$LEVEL" == "100" ] && [ "$CUR" == "0" ] ; then
                log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR***: calibrating..."
                rm -f /data/system/batterystats.bin
                touch /data/.battery-calibrated
                exit 0
        fi
        # log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR ***: sleeping for $SLEEP s..."
        sleep $SLEEP
done
) &

#Disable normalize sleeper
mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

#battery tweaks (sleepers)
mount -t debugfs none /sys/kernel/debug
echo NO_NEW_FAIR_SLEEPERS > /sys/kernel/debug/sched_features;
echo NO_NORMALIZED_SLEEPERS > /sys/kernel/debug/sched_features;
umount /sys/kernel/debug



Tips Combined twaks and apps
Still testing better values to add!

1. incredibile fast browsing in zoomed pages with no shutters!

♦ VM Heapsize; higher the RAM, higher the hp can be
Code: 
dalvik.vm.heapsize=96m
♦ Helps scrolling responsiveness
Code: 
windowsmgr.max_events_per_sec=250
♦ Opera Mobile Browser

2. Faster internet speed

♦ Signal (3G) tweaks
Code: 
ro.ril.hsxpa=2
ro.ril.gprsclass=10 
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5
♦ Net speed tweaks
Code: 
net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

Alright, I think this is it for now.
If you have any other tweaks or better values, you can PM me and I'll include them

thanks to
kenzo
krabappel2548
 
Last edited:
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krabappel2548

krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,444
16,111
Lommel
optik19918 said:
4. Render UI with GPU
Code: 
debug.sf.hw=1
Click to expand...
Click to collapse

This one was already added by Sony in build.prop :p

optik19918 said:
7. Save battery
Code: 
pm.sleep_mode=1
ro.ril.disable.power.collapse=0
Click to expand...
Click to collapse

I tested these a while ago and found them not effective. I even experienced less battery drain without these 2 lines :)

optik19918 said:
10. Raise photo and video recording quality
Code: 
ro.media.dec.jpeg.memcap=8000000
Click to expand...
Click to collapse

I'm not sure if these help because we have 12mp camera and not 8.

optik19918 said:
b) SE supl for A-GPS (better than Nokia's or Google's)
Code: 
SUPL_HOST=supl.sonyericsson.com
SUPL_PORT=7275
Click to expand...
Click to collapse

These are also already added by Sony ;)

btw I'll post some more tweaks here later so you can add them to first post :D
 
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optik19918

optik19918

Senior Member
Jan 3, 2012
296
227
München
krabappel2548 said:
This one was already added by Sony in build.prop :p



I tested these a while ago and found them not effective. I even experienced less battery drain without these 2 lines :)



I'm not sure if these help because we have 12mp camera and not 8.



These are also already added by Sony ;)

btw I'll post some more tweaks here later so you can add them to first post :D
Click to expand...
Click to collapse

thanks for all i'l update when i go home now i'm at work!
some values are wrong becose i have those tweaks since the time of the x10

and i left the one already added by Sony in build.prop to make them easier to understand :)

Sent from my LT26i using xda premium
 
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krabappel2548

krabappel2548

Inactive Recognized Developer
Nov 15, 2011
6,444
16,111
Lommel
Here are some more tweaks ;) Feel free to add them to the first post ;)

To make them work:
1. make a new file in /system/etc/init.d, name it sysctl_tweaks
2. make a new file in /system/etc, name it sysctl.conf
3. Paste the right code in the right file ;)

1. sysctl_tweaks
Code: 
#!/system/bin/sh
# grep sysctl /etc/init.d/*
/etc/init.d/02vm:# Load /sys/etc/sysctl.conf
/etc/init.d/02vm:sysctl -p

2. sysctl.conf
Code: 
#sysctl.conf file

############################
#    Battery life tweaks   #
############################
sysctl -w vm.dirty_writeback_centisecs=3000;
sysctl -w vm.dirty_expire_centisecs=500;

############################
#      kernel tweaks       #
############################

sysctl -w kernel.sched_features=15834233;
sysctl -w kernel.msgmni=1024;
sysctl -w kernel.msgmax=64000;
sysctl -w kernel.shmmax=268435456;
sysctl -w kernel.shmall=2097152;
sysctl -w kernel.sem="500 512000 100 2048";
sysctl -w kernel.hung_task_timeout_secs=0;
sysctl -w kernel.sched_latency_ns=18000000;
sysctl -w kernel.sched_compat_yield=1;
sysctl -w kernel.sched_shares_ratelimit=256000;
sysctl -w kernel.sched_child_runs_first=0;
sysctl -w kernel.threads-max=10000;
sysctl -w kernel.panic=30;
sysctl -w kernel.panic_on_oops=1;
sysctl -w kernel.sched_features=24189;
sysctl -w kernel.sched_min_granularity_ns=1500000;
sysctl -w kernel.sched_wakeup_granularity_ns=3000000;

############################
#        CPU tweaks        #
############################

# Queue size modifications
sysctl -w net.core.optmem_max=20480;
sysctl -w net.unix.max_dgram_qlen=50;

# Net Core Settings
# Location: /proc/sys/net/core
sysctl -w net.core.wmem_max=524288;
sysctl -w net.core.rmem_max=524288;
sysctl -w net.core.rmem_default=256960;
sysctl -w net.core.wmem_default=256960;

############################
#  VM & Filesystem tweaks  #
############################
sysctl -w fs.lease-break-time=10;
sysctl -w fs.file-max=65536;
sysctl -w vm.overcommit_memory=1;
sysctl -w vm.min_free_order_shift=4;
sysctl -w vm.block_dump=0;
sysctl -w vm.oom_dump_tasks=1;
sysctl -w vm.page-cluster=3;

############################
#     Net Speed tweaks     #
############################

# UnderUtilized Networking Tweaks below as recommended by avgjoemomma (from XDA)
sysctl -w net.ipv4.tcp_congestion_control=cubic;    
   
# Hardening the TCP/IP stack to SYN attacks
sysctl -w net.ipv4.tcp_syncookies=1;
sysctl -w net.ipv4.conf.all.rp_filter=1;
sysctl -w net.ipv4.conf.default.rp_filter=1;
sysctl -w net.ipv4.tcp_synack_retries=2;
sysctl -w net.ipv4.tcp_syn_retries=2;
sysctl -w net.ipv4.tcp_max_syn_backlog=1024;
sysctl -w net.ipv4.tcp_max_tw_buckets=16384;            
sysctl -w net.ipv4.icmp_echo_ignore_all=1;              
sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1; 
sysctl -w net.ipv4.tcp_no_metrics_save=1;               
sysctl -w net.ipv4.tcp_fin_timeout=15;
sysctl -w net.ipv4.tcp_keepalive_time=1800;
sysctl -w net.ipv4.ip_forward=0;      
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1;       
sysctl -w net.ipv4.route.flush=1;
sysctl -w net.ipv4.udp_rmem_min=6144;
sysctl -w net.ipv4.udp_wmem_min=6144;
sysctl -w net.ipv4.tcp_rfc1337=1;
sysctl -w net.ipv4.ip_no_pmtu_disc=0;
sysctl -w net.ipv4.tcp_ecn=0;
sysctl -w net.ipv4.tcp_sack=1;
sysctl -w net.ipv4.tcp_fack=1;
              
# Don't accept source routing
sysctl -w net.ipv4.conf.default.accept_source_route=0 ;
sysctl -w net.ipv4.conf.all.accept_source_route=0;

# Don't accept redirects
sysctl -w net.ipv4.conf.all.accept_redirects=0;
sysctl -w net.ipv4.conf.default.accept_redirects=0;
sysctl -w net.ipv4.conf.all.secure_redirects=0;
sysctl -w net.ipv4.conf.default.secure_redirects=0;

This is another init.d tweak ;) It's a battery calibration script

3. This is my battery calibration tweak
Code: 
#!/system/bin/sh
# ========================================
# init.d script for KA Xperia SSpeed 
# made by krabappel2548
# ========================================

SLEEP=120

if [ -e /data/.battery-calibrated ] ; then
        exit 0
fi

(
while : ; do
        LEVEL=$(cat /sys/class/power_supply/battery/capacity)
        CUR=$(cat /sys/class/power_supply/battery/batt_current)
        if [ "$LEVEL" == "100" ] && [ "$CUR" == "0" ] ; then
                log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR***: calibrating..."
                rm -f /data/system/batterystats.bin
                touch /data/.battery-calibrated
                exit 0
        fi
        # log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR ***: sleeping for $SLEEP s..."
        sleep $SLEEP
done
) &

#Disable normalize sleeper
mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

#battery tweaks (sleepers)
mount -t debugfs none /sys/kernel/debug
echo NO_NEW_FAIR_SLEEPERS > /sys/kernel/debug/sched_features;
echo NO_NORMALIZED_SLEEPERS > /sys/kernel/debug/sched_features;
umount /sys/kernel/debug
 
Last edited:
  • Like
Reactions: SonGokussj4, noob.fl, amfirbek92 and 4 others
amfirbek92

amfirbek92

Senior Member
Nov 10, 2011
677
250
31
Kalamoun - Tripoli
@Optik @Krabappel
i've just added all tweaks right now...bt i recognized my benchmark decreased :( it's now 6693 and it was 6900..im using doomkernel..maybe some tweaks or not compatible with it??
 
mikbe

mikbe

Senior Member
Jul 23, 2010
978
176
I added ro.mot.buttonlight.timeout=0 in the end of build.prop but it doesn't seem to have effect. Reboot didn't help either.

amfirbek92 said:
@Optik @Krabappel
i've just added all tweaks right now...bt i recognized my benchmark decreased :( it's now 6693 and it was 6900..im using doomkernel..maybe some tweaks or not compatible with it??
Click to expand...
Click to collapse

Stop looking at synthetic benchmark scores if your phone otherwise feels snappy.
 
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    optik19918
    optik19918
    I've been collecting some tweaks and scripts and seems to me it's now time to share it. While some values in terms of optimization might be different from device to device, I've found these pretty consistent throughout many.

    I didn't tested all of them, and i don't assume any risk!!! Use them at you own risk!!!

    Some useful tips on how to use them at the end of the post

    This thread will be updated when new/better things come out

    Superuser, Busybox install/update

    1. Easily install Busybox (YOU NEED ROOT FIRST)
    Code: 
    https://play.google.com/store/apps/details?id=com.jrummy.busybox.installer&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5qcnVtbXkuYnVzeWJveC5pbnN0YWxsZXIiXQ..

    2. UPDATE SuperUser (root app)
    Code: 
    http://goo.im/superuser/



    Build.prop
    (edit your /system/build.prop with a file manager with root access)

    Careful for already existing settings. In this case, just change the values.

    1. Force launcher into memory
    Code: 
    ro.HOME_APP_ADJ=1

    2. Raise JPG quality to 100%
    Code: 
    ro.media.enc.jpeg.quality=100

    3. VM Heapsize; higher the RAM, higher the hp can be
    Code: 
    dalvik.vm.heapsize=96m

    4. Render UI with GPU
    Code: 
    debug.sf.hw=1

    5. Decrease dialing out delay
    Code: 
    ro.telephony.call_ring.delay=0

    6. Helps scrolling responsiveness
    Code: 
    windowsmgr.max_events_per_sec=150

    7. Save battery
    Code: 
    wifi.supplicant_scan_interval=180
pm.sleep_mode=1
ro.ril.disable.power.collapse=0

    8. Disable debugging notify icon on statusbar
    Code: 
    persist.adb.notify=0

    9. Increase overall touch responsiveness
    Code: 
    debug.performance.tuning=1
video.accelerate.hw=1

    10. Raise photo and video recording quality
    Code: 
    ro.media.dec.jpeg.memcap=12000000
ro.media.enc.hprof.vid.bps=12000000

    11. Signal (3G) tweaks
    Code: 
    ro.ril.hsxpa=2
ro.ril.gprsclass=10 
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5

    12. Net speed tweaks
    Code: 
    net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

    13. Disable blackscreen issue after a call
    Code: 
    ro.lge.proximity.delay=25
mot.proximity.delay=25

    14. Fix some application issues
    Code: 
    ro.kernel.android.checkjni=0

    15. Phone will not wake up from hitting the volume rocker
    Code: 
    ro.config.hwfeature_wakeupkey=0

    16. Force button lights on when screen is on
    Code: 
    ro.mot.buttonlight.timeout=0

    17. Disable boot animation for faster boot
    Code: 
    debug.sf.nobootanimation=1

    18. Miscellaneous flags
    Code: 
    ro.config.hw_menu_unlockscreen=false
persist.sys.use_dithering=0
persist.sys.purgeable_assets=1
dalvik.vm.dexopt-flags=m=y
ro.mot.eri.losalert.delay=1000

    19. Specifics to some LG devices
    Code: 
    persist.service.pcsync.enable=0
persist.service.lgospd.enable=0
user.feature.flex=true
user.feature.lgdrm=false
user.feature.lgresource=false
user.feature.lgpoweroff=false
user.feature.ls_event=false
user.feature.ls_normal=false
user.feature.sui=false


    Init.d
    (needs ROM with init.d access and busybox, open empty file, insert header #!/system/bin/sh and put these there, save in /system/etc/init.d and name it something like 77tweaks)

    1. strict minfree handler tweak
    Code: 
    echo "2048,3072,6144,15360,17920,20480" > /sys/module/lowmemorykiller/parameters/minfree

    2. internet speed tweaks
    Code: 
    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 "5" > /proc/sys/net/ipv4/tcp_keepalive_probes;
echo "30" > /proc/sys/net/ipv4/tcp_keepalive_intvl;
echo "30" > /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;

    3. vm management tweaks
    Code: 
    echo "4096" > /proc/sys/vm/min_free_kbytes
echo "0" > /proc/sys/vm/oom_kill_allocating_task;
echo "0" > /proc/sys/vm/panic_on_oom;
echo "0" > /proc/sys/vm/laptop_mode;
echo "0" > /proc/sys/vm/swappiness
echo "50" > /proc/sys/vm/vfs_cache_pressure
echo "90" > /proc/sys/vm/dirty_ratio
echo "70" > /proc/sys/vm/dirty_background_ratio

    4. misc kernel tweaks
    Code: 
    echo "8" > /proc/sys/vm/page-cluster;
echo "64000" > /proc/sys/kernel/msgmni;
echo "64000" > /proc/sys/kernel/msgmax;
echo "10" > /proc/sys/fs/lease-break-time;
echo "500,512000,64,2048" > /proc/sys/kernel/sem;

    5. battery tweaks
    Code: 
    echo "500" > /proc/sys/vm/dirty_expire_centisecs
echo "1000" > /proc/sys/vm/dirty_writeback_centisecs

    6. EXT4 tweaks (greatly increase I/O)
    (needs /system, /cache, /data partitions formatted to EXT4)

    a) removes journalism
    Code: 
    tune2fs -o journal_data_writeback /block/path/to/system
tune2fs -O ^has_journal /block/path/to/system
tune2fs -o journal_data_writeback /block/path/to/cache
tune2fs -O ^has_journal /block/path/to/cache
tune2fs -o journal_data_writeback /block/path/to/data
tune2fs -O ^has_journal /block/path/to/data

    b) perfect mount options
    Code: 
    busybox mount -o remount,noatime,noauto_da_alloc,nodiratime,barrier=0,nobh /system
busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /data
busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /cache

    7. Flags blocks as non-rotational and increases cache size
    Code: 
    LOOP=`ls -d /sys/block/loop*`;
RAM=`ls -d /sys/block/ram*`;
MMC=`ls -d /sys/block/mmc*`;
for j in $LOOP $RAM
do
echo "0" > $j/queue/rotational;
echo "2048" > $j/queue/read_ahead_kb;
done

    8. microSD card speed tweak
    Code: 
    echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb;

    9. Defrags database files
    Code: 
    for i in \
`find /data -iname "*.db"`
do \
sqlite3 $i 'VACUUM;'; 
done

    9. Remove logger
    Code: 
    rm /dev/log/main

    10. Ondemand governor tweaks
    Code: 
    SAMPLING_RATE=$(busybox expr `cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency` \* 750 / 1000)
echo 95 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold
echo $SAMPLING_RATE > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate

    11. Auto change governor and I/O Scheduler

    a) I/O Scheduler (Best: MTD devices - VR; EMMC devices - SIO) - needs kernel with these
    Code: 
    echo "vr" > /sys/block/mmcblk0/queue/scheduler
or
echo "sio" > /sys/block/mmcblk0/queue/scheduler

    b) Governor (Best: Minmax > SavagedZen > Smoothass > Smartass > Interactive) - needs kernel with these
    Code: 
    echo "governor-name-here" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

    12. Auto-zipalign on boot
    (needs zipalign bin)
    Code: 
    [url]http://xdaforums.com/showthread.php?t=860586[/url]

    13. Loopy Smoothness tweak
    Code: 
    [url]http://xdaforums.com/showthread.php?t=1137554[/url]
[url]http://xdaforums.com/showthread.php?t=1205744[/url]

    14. Move dalvik-cache to cache partition (if it's big enough) to free up data partition space
    Code: 
    CACHESIZE=$(df -k /cache | tail -n1 | tr -s ' ' | cut -d ' ' -f2)
if [ $CACHESIZE -gt 80000 ]
	then
	echo "Large cache detected, moving dalvik-cache to /cache"
	if [ ! -d /cache/dalvik-cache ]
		then
		busybox rm -rf /cache/dalvik-cache /data/dalvik-cache
		mkdir /cache/dalvik-cache /data/dalvik-cache
		fi

	busybox chown 1000:1000 /cache/dalvik-cache
	busybox chmod 0771 /cache/dalvik-cache

	# bind mount dalvik-cache so we can still boot without the sdcard
	busybox mount -o bind /cache/dalvik-cache /data/dalvik-cache
	busybox chown 1000:1000 /data/dalvik-cache
	busybox chmod 0771 /data/dalvik-cache
	else
	echo "Small cache detected, dalvik-cache will remain on /data"
fi

    15. Disable normalize sleeper
    Code: 
    mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

    16. OOM groupings and priorities tweaks - SuperCharger
    Code: 
    [url]http://xdaforums.com/showthread.php?t=991276[/url]


    GPS.conf
    (create or edit your /system/etc/gps.conf with a file manager with root access)

    For improving GPS lock time and signal.

    a) European NTP server (replace for america or asia in your case)
    Code: 
    NTP_SERVER=europe.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin

    b) SE supl for A-GPS (better than Nokia's or Google's)
    Code: 
    SUPL_HOST=supl.sonyericsson.com
SUPL_PORT=7275


    Other tweaks or guidelines

    1. Patch your hosts file for blocking Ads
    (please think before doing this; many developers are supported through this way)
    Code: 
    You can use AdFree application for this or changing manually your hosts file.

Here are some databases:
http://www.mvps.org/winhelp2002/hosts.txt
http://pgl.yoyo.org/adservers/serverlist.php?showintro=0;hostformat=hosts

    2. Use CyanogenMOD's APN list file - it's one of the most complete.
    Code: 
    It's located in /system/etc/apns-conf.xml

    3. Use UOT kitchen for basic theming on your device.
    Code: 
    http://uot.dakra.lt/

    4. Use Google's dns servers
    Code: 
    Create an empty file, name it resolv.conf and put there these 2 lines:
nameserver 8.8.8.8
nameserver 8.8.4.4

Save to /system/etc/.

    5. Update Superuser and su binary to latest version (3.0 beta)
    Code: 
    http://goo-inside.me/superuser/

    6. Disable sync feature in sqlite
    (author: ownhere - needs a source for your device so you can compile the /system/lib/libsqlite.so)
    Code: 
    Patch file here: http://xdaforums.com/showthread.php?t=903507

    7. Do not use task killers.

    sysctl_tweaks and sysctl.conf tweaks
    added by krabappel2548 Thank him

    To make them work:
    1. make a new file in /system/etc/init.d, name it sysctl_tweaks
    2. make a new file in /system/etc, name it sysctl.conf
    3. Paste the right code in the right file ;)

    1. sysctl_tweaks
    Code: 
    #!/system/bin/sh
# grep sysctl /etc/init.d/*
/etc/init.d/02vm:# Load /sys/etc/sysctl.conf
/etc/init.d/02vm:sysctl -p

    2. sysctl.conf
    Code: 
    #sysctl.conf file

############################
#    Battery life tweaks   #
############################
sysctl -w vm.dirty_writeback_centisecs=3000;
sysctl -w vm.dirty_expire_centisecs=500;

############################
#      kernel tweaks       #
############################

sysctl -w kernel.sched_features=15834233;
sysctl -w kernel.msgmni=1024;
sysctl -w kernel.msgmax=64000;
sysctl -w kernel.shmmax=268435456;
sysctl -w kernel.shmall=2097152;
sysctl -w kernel.sem="500 512000 100 2048";
sysctl -w kernel.hung_task_timeout_secs=0;
sysctl -w kernel.sched_latency_ns=18000000;
sysctl -w kernel.sched_compat_yield=1;
sysctl -w kernel.sched_shares_ratelimit=256000;
sysctl -w kernel.sched_child_runs_first=0;
sysctl -w kernel.threads-max=10000;
sysctl -w kernel.panic=30;
sysctl -w kernel.panic_on_oops=1;
sysctl -w kernel.sched_features=24189;
sysctl -w kernel.sched_min_granularity_ns=1500000;
sysctl -w kernel.sched_wakeup_granularity_ns=3000000;

############################
#        CPU tweaks        #
############################

# Queue size modifications
sysctl -w net.core.optmem_max=20480;
sysctl -w net.unix.max_dgram_qlen=50;

# Net Core Settings
# Location: /proc/sys/net/core
sysctl -w net.core.wmem_max=524288;
sysctl -w net.core.rmem_max=524288;
sysctl -w net.core.rmem_default=256960;
sysctl -w net.core.wmem_default=256960;

############################
#  VM & Filesystem tweaks  #
############################
sysctl -w fs.lease-break-time=10;
sysctl -w fs.file-max=65536;
sysctl -w vm.overcommit_memory=1;
sysctl -w vm.min_free_order_shift=4;
sysctl -w vm.block_dump=0;
sysctl -w vm.oom_dump_tasks=1;
sysctl -w vm.page-cluster=3;

############################
#     Net Speed tweaks     #
############################

# UnderUtilized Networking Tweaks below as recommended by avgjoemomma (from XDA)
sysctl -w net.ipv4.tcp_congestion_control=cubic;    
   
# Hardening the TCP/IP stack to SYN attacks
sysctl -w net.ipv4.tcp_syncookies=1;
sysctl -w net.ipv4.conf.all.rp_filter=1;
sysctl -w net.ipv4.conf.default.rp_filter=1;
sysctl -w net.ipv4.tcp_synack_retries=2;
sysctl -w net.ipv4.tcp_syn_retries=2;
sysctl -w net.ipv4.tcp_max_syn_backlog=1024;
sysctl -w net.ipv4.tcp_max_tw_buckets=16384;            
sysctl -w net.ipv4.icmp_echo_ignore_all=1;              
sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1; 
sysctl -w net.ipv4.tcp_no_metrics_save=1;               
sysctl -w net.ipv4.tcp_fin_timeout=15;
sysctl -w net.ipv4.tcp_keepalive_time=1800;
sysctl -w net.ipv4.ip_forward=0;      
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1;       
sysctl -w net.ipv4.route.flush=1;
sysctl -w net.ipv4.udp_rmem_min=6144;
sysctl -w net.ipv4.udp_wmem_min=6144;
sysctl -w net.ipv4.tcp_rfc1337=1;
sysctl -w net.ipv4.ip_no_pmtu_disc=0;
sysctl -w net.ipv4.tcp_ecn=0;
sysctl -w net.ipv4.tcp_sack=1;
sysctl -w net.ipv4.tcp_fack=1;
              
# Don't accept source routing
sysctl -w net.ipv4.conf.default.accept_source_route=0 ;
sysctl -w net.ipv4.conf.all.accept_source_route=0;

# Don't accept redirects
sysctl -w net.ipv4.conf.all.accept_redirects=0;
sysctl -w net.ipv4.conf.default.accept_redirects=0;
sysctl -w net.ipv4.conf.all.secure_redirects=0;
sysctl -w net.ipv4.conf.default.secure_redirects=0;

    This is another init.d tweak ;) It's a battery calibration script

    3. This is my battery calibration tweak
    Code: 
    #!/system/bin/sh
# ========================================
# init.d script for KA Xperia SSpeed 
# made by krabappel2548
# ========================================

SLEEP=120

if [ -e /data/.battery-calibrated ] ; then
        exit 0
fi

(
while : ; do
        LEVEL=$(cat /sys/class/power_supply/battery/capacity)
        CUR=$(cat /sys/class/power_supply/battery/batt_current)
        if [ "$LEVEL" == "100" ] && [ "$CUR" == "0" ] ; then
                log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR***: calibrating..."
                rm -f /data/system/batterystats.bin
                touch /data/.battery-calibrated
                exit 0
        fi
        # log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR ***: sleeping for $SLEEP s..."
        sleep $SLEEP
done
) &

#Disable normalize sleeper
mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

#battery tweaks (sleepers)
mount -t debugfs none /sys/kernel/debug
echo NO_NEW_FAIR_SLEEPERS > /sys/kernel/debug/sched_features;
echo NO_NORMALIZED_SLEEPERS > /sys/kernel/debug/sched_features;
umount /sys/kernel/debug



    Tips Combined twaks and apps
    Still testing better values to add!

    1. incredibile fast browsing in zoomed pages with no shutters!

    ♦ VM Heapsize; higher the RAM, higher the hp can be
    Code: 
    dalvik.vm.heapsize=96m
    ♦ Helps scrolling responsiveness
    Code: 
    windowsmgr.max_events_per_sec=250
    ♦ Opera Mobile Browser

    2. Faster internet speed

    ♦ Signal (3G) tweaks
    Code: 
    ro.ril.hsxpa=2
ro.ril.gprsclass=10 
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5
    ♦ Net speed tweaks
    Code: 
    net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

    Alright, I think this is it for now.
    If you have any other tweaks or better values, you can PM me and I'll include them

    thanks to
    kenzo
    krabappel2548
    View
    7
    krabappel2548
    krabappel2548
    Here are some more tweaks ;) Feel free to add them to the first post ;)

    To make them work:
    1. make a new file in /system/etc/init.d, name it sysctl_tweaks
    2. make a new file in /system/etc, name it sysctl.conf
    3. Paste the right code in the right file ;)

    1. sysctl_tweaks
    Code: 
    #!/system/bin/sh
# grep sysctl /etc/init.d/*
/etc/init.d/02vm:# Load /sys/etc/sysctl.conf
/etc/init.d/02vm:sysctl -p

    2. sysctl.conf
    Code: 
    #sysctl.conf file

############################
#    Battery life tweaks   #
############################
sysctl -w vm.dirty_writeback_centisecs=3000;
sysctl -w vm.dirty_expire_centisecs=500;

############################
#      kernel tweaks       #
############################

sysctl -w kernel.sched_features=15834233;
sysctl -w kernel.msgmni=1024;
sysctl -w kernel.msgmax=64000;
sysctl -w kernel.shmmax=268435456;
sysctl -w kernel.shmall=2097152;
sysctl -w kernel.sem="500 512000 100 2048";
sysctl -w kernel.hung_task_timeout_secs=0;
sysctl -w kernel.sched_latency_ns=18000000;
sysctl -w kernel.sched_compat_yield=1;
sysctl -w kernel.sched_shares_ratelimit=256000;
sysctl -w kernel.sched_child_runs_first=0;
sysctl -w kernel.threads-max=10000;
sysctl -w kernel.panic=30;
sysctl -w kernel.panic_on_oops=1;
sysctl -w kernel.sched_features=24189;
sysctl -w kernel.sched_min_granularity_ns=1500000;
sysctl -w kernel.sched_wakeup_granularity_ns=3000000;

############################
#        CPU tweaks        #
############################

# Queue size modifications
sysctl -w net.core.optmem_max=20480;
sysctl -w net.unix.max_dgram_qlen=50;

# Net Core Settings
# Location: /proc/sys/net/core
sysctl -w net.core.wmem_max=524288;
sysctl -w net.core.rmem_max=524288;
sysctl -w net.core.rmem_default=256960;
sysctl -w net.core.wmem_default=256960;

############################
#  VM & Filesystem tweaks  #
############################
sysctl -w fs.lease-break-time=10;
sysctl -w fs.file-max=65536;
sysctl -w vm.overcommit_memory=1;
sysctl -w vm.min_free_order_shift=4;
sysctl -w vm.block_dump=0;
sysctl -w vm.oom_dump_tasks=1;
sysctl -w vm.page-cluster=3;

############################
#     Net Speed tweaks     #
############################

# UnderUtilized Networking Tweaks below as recommended by avgjoemomma (from XDA)
sysctl -w net.ipv4.tcp_congestion_control=cubic;    
   
# Hardening the TCP/IP stack to SYN attacks
sysctl -w net.ipv4.tcp_syncookies=1;
sysctl -w net.ipv4.conf.all.rp_filter=1;
sysctl -w net.ipv4.conf.default.rp_filter=1;
sysctl -w net.ipv4.tcp_synack_retries=2;
sysctl -w net.ipv4.tcp_syn_retries=2;
sysctl -w net.ipv4.tcp_max_syn_backlog=1024;
sysctl -w net.ipv4.tcp_max_tw_buckets=16384;            
sysctl -w net.ipv4.icmp_echo_ignore_all=1;              
sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1; 
sysctl -w net.ipv4.tcp_no_metrics_save=1;               
sysctl -w net.ipv4.tcp_fin_timeout=15;
sysctl -w net.ipv4.tcp_keepalive_time=1800;
sysctl -w net.ipv4.ip_forward=0;      
sysctl -w net.ipv4.tcp_moderate_rcvbuf=1;       
sysctl -w net.ipv4.route.flush=1;
sysctl -w net.ipv4.udp_rmem_min=6144;
sysctl -w net.ipv4.udp_wmem_min=6144;
sysctl -w net.ipv4.tcp_rfc1337=1;
sysctl -w net.ipv4.ip_no_pmtu_disc=0;
sysctl -w net.ipv4.tcp_ecn=0;
sysctl -w net.ipv4.tcp_sack=1;
sysctl -w net.ipv4.tcp_fack=1;
              
# Don't accept source routing
sysctl -w net.ipv4.conf.default.accept_source_route=0 ;
sysctl -w net.ipv4.conf.all.accept_source_route=0;

# Don't accept redirects
sysctl -w net.ipv4.conf.all.accept_redirects=0;
sysctl -w net.ipv4.conf.default.accept_redirects=0;
sysctl -w net.ipv4.conf.all.secure_redirects=0;
sysctl -w net.ipv4.conf.default.secure_redirects=0;

    This is another init.d tweak ;) It's a battery calibration script

    3. This is my battery calibration tweak
    Code: 
    #!/system/bin/sh
# ========================================
# init.d script for KA Xperia SSpeed 
# made by krabappel2548
# ========================================

SLEEP=120

if [ -e /data/.battery-calibrated ] ; then
        exit 0
fi

(
while : ; do
        LEVEL=$(cat /sys/class/power_supply/battery/capacity)
        CUR=$(cat /sys/class/power_supply/battery/batt_current)
        if [ "$LEVEL" == "100" ] && [ "$CUR" == "0" ] ; then
                log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR***: calibrating..."
                rm -f /data/system/batterystats.bin
                touch /data/.battery-calibrated
                exit 0
        fi
        # log -p i -t battery-calibration "*** LEVEL: $LEVEL CUR: $CUR ***: sleeping for $SLEEP s..."
        sleep $SLEEP
done
) &

#Disable normalize sleeper
mount -t debugfs none /sys/kernel/debug
echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

#battery tweaks (sleepers)
mount -t debugfs none /sys/kernel/debug
echo NO_NEW_FAIR_SLEEPERS > /sys/kernel/debug/sched_features;
echo NO_NORMALIZED_SLEEPERS > /sys/kernel/debug/sched_features;
umount /sys/kernel/debug
    View
    4
    krabappel2548
    krabappel2548
    optik19918 said:
    4. Render UI with GPU
    Code: 
    debug.sf.hw=1
    Click to expand...
    Click to collapse

    This one was already added by Sony in build.prop :p

    optik19918 said:
    7. Save battery
    Code: 
    pm.sleep_mode=1
ro.ril.disable.power.collapse=0
    Click to expand...
    Click to collapse

    I tested these a while ago and found them not effective. I even experienced less battery drain without these 2 lines :)

    optik19918 said:
    10. Raise photo and video recording quality
    Code: 
    ro.media.dec.jpeg.memcap=8000000
    Click to expand...
    Click to collapse

    I'm not sure if these help because we have 12mp camera and not 8.

    optik19918 said:
    b) SE supl for A-GPS (better than Nokia's or Google's)
    Code: 
    SUPL_HOST=supl.sonyericsson.com
SUPL_PORT=7275
    Click to expand...
    Click to collapse

    These are also already added by Sony ;)

    btw I'll post some more tweaks here later so you can add them to first post :D
    View
    3
    optik19918
    optik19918
    added Tweaks Combination to make it easier to understand for new people
    View
    2
    W
    WebMuth
    mpttrung said:
    May I put those scripts everywhere I can in build.prop ?
    Click to expand...
    Click to collapse

    nope add them at the end of the page and leave a free row between them to avoid problems
    View

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