[Galaxy S 4 Developer Discussion [Developers-Only]] broodplank1337:
The proprietary libs of Samsung / Qcom are really chatty, in fact way too chatty in my opinion.

I have edited 3 proprietary libs that were the most annoying. Method of replacing those lines with null:

1. strings 'binaryname'

2. copy string you want to remove

3. in hex editor (ghex, bless or wxd or so), control + f, search for string

4. replace with zeros

5. save

Should work on all s4 devices.

mpdecision (make poor decision) (/system/bin)

likes to spam unneeded up/down state changes, when phone is idle for example

What is hexed out:

- 6E 75 6D 20 6F 6E 6C 69 6E 65 20 63 6F 72 65 73 3A 20 25 64 20 72 65 71 64 20 3A 20 25 64 20 61 76 61 69 6C 61 62 6C 65 20 3A 20 25 64 20 72 71 5F 64 65 70 74 68 3A 25 66

- 6E 75 6D 20 6F 6E 6C 69 6E 65 20 63 6F 72 65 73 3A 20 25 64 20 72 65 71 64 20 3A 20 25 64 20 61 76 61 69 6C 61 62 6C 65 20 3A 20 25 64 20 72 71 5F 64 65 70 74 68 3A 25 66 20 68 6F 74 70 6C 75 67 5F 61 76 67 5F 6C 6F 61 64 5F 64 77 3A 20 25 64 0A 00 44 4F 57 4E 20 63 70 75 3A 25 64

- 55 50 20 63 70 75 3A 25 64 20 63 6F 72 65 5F 69 64 78 3A 25 64 20 4E 77 3A 25 66 20 54 77 3A 25 64 20 74 6F 74 61 6C 5F 74 69 6D 65 5F 75 70 3A 25 66

- 63 70 75 25 64 3A 20 63 6F 72 65 5F 69 64 78 3A 20 25 64 20 75 70 74 69 6D 65 3A 20 25 66 20 64 6F 77 6E 74 69 6D 65 20 25 66

- 63 70 75 25 64 3A 20 63 6F 72 65 5F 69 64 78 3A 20 25 64 20 4E 77 3A 20 25 66 2C 20 54 77 20 3A 25 64 2C 20 4E 73 3A 20 25 66 2C 20 54 73 3A 20 25 64 2C 20 75 74 69 6C 5F 68 69 67 68 5F 61 6E 64 3A 25 64

- 63 70 75 73 5F 75 70 3A 20 25 64 20 63 70 75 73 5F 64 6F 77 6E 3A 20 25 64 20 74 68 65 72 6D 61 6C 5F 6D 61 73 6B 3A 20 30 78 25 78

- 20 63 6F 72 65 5F 69 64 78 3A 25 64 20 4E 73 3A 25 66 20 54 73 3A 25 64 20 74 6F 74 61 6C 5F 74 69 6D 65 5F 64 6F 77 6E 3A 25 66 0A 00 75 74 69 6C 5F 6C 6F 77 5F 61 6E 64 3A 20 25 64 2C 20 75 74 69 6C 5F 6C 6F 77 5F 6F 72 3A 25 64 0A 00 55 50 20 63 70 75 3A 25 64 20 63 6F 72 65 5F 69 64 78 3A 25 64 20 4E 77 3A 25 66 20 54 77 3A 25 64 20 74 6F 74 61 6C 5F 74 69 6D 65 5F 75 70 3A 25 66 0A 00 75 74 69 6C 5F 68 69 67 68 5F 61 6E 64 3A 20 25 64 2C 20 75 74 69 6C 5F 68 69 67 68 5F 6F 72 3A 20 25 64

sed -i 's/0x6E756D206F6E6C696E6520636F7265733A2025642072657164203A20256420617661696C61626C65203A2025642072715F64657074683A2566//g' mpdecision
sed -i 's/0x6E756D206F6E6C696E6520636F7265733A2025642072657164203A20256420617661696C61626C65203A2025642072715F64657074683A256620686F74706C75675F6176675F6C6F61645F64773A2025640A00444F574E206370753A2564//g' mpdecision
sed -i 's/0x5550206370753A256420636F72655F6964783A2564204E773A25662054773A256420746F74616C5F74696D655F75703A2566//g' mpdecision
sed -i 's/0x63707525643A20636F72655F6964783A20256420757074696D653A20256620646F776E74696D65202566//g' mpdecision
sed -i 's/0x63707525643A20636F72655F6964783A202564204E773A2025662C205477203A25642C204E733A2025662C2054733A2025642C207574696C5F686967685F616E643A2564//g' mpdecision
sed -i 's/0x637075735F75703A20256420637075735F646F776E3A20256420746865726D616C5F6D61736B3A2030782578//g' mpdecision
sed -i 's/0x20636F72655F6964783A2564204E733A25662054733A256420746F74616C5F74696D655F646F776E3A25660A007574696C5F6C6F775F616E643A2025642C207574696C5F6C6F775F6F723A25640A005550206370753A256420636F72655F6964783A2564204E773A25662054773A256420746F74616C5F74696D655F75703A25660A007574696C5F686967685F616E643A2025642C207574696C5F686967685F6F723A202564//g' mpdecision

thermal-engine (/system/bin)

Likes to spam actions taken on cpu freq. problem is that it claims way to much space in log. so I removed those particular messages

What is hexxed out:

- 54 4D 20 49 64 20 27 25 73 27 20 53 65 6E 73 6F 72 20 27 25 73 27 20 2D 20 61 6C 61 72 6D 20 72 61 69 73 65 64 20 25 64 20 61 74 20 25 64 2E 25 64 20 64 65 67 43

- 54 4D 20 49 64 20 27 25 73 27 20 53 65 6E 73 6F 72 20 27 25 73 27 20 2D 20 61 6C 61 72 6D 20 63 6C 65 61 72 65 64 20 25 64 20 61 74 20 25 64 2E 25 64 20 64 65 67 43

- 41 43 54 49 4F 4E 3A 20 43 50 55 20 2D 20 53 65 74 74 69 6E 67 20 43 50 55 5B 25 64 5D 20 74 6F 20 25 64

sed -i 's/0x544D20496420272573272053656E736F722027257327202D20616C61726D207261697365642025642061742025642E25642064656743//g' thermal-engine
sed -i 's/0x544D20496420272573272053656E736F722027257327202D20616C61726D20636C65617265642025642061742025642E25642064656743//g' thermal-engine
sed -i 's/0x414354494F4E3A20435055202D2053657474696E67204350555B25645D20746F202564//g' thermal-engine

sensors.msm8960.so (/system/lib/hw)

likes to say 'mCompEngine is NULL' very often for no reason. it spams non stop

Dont have the actual hexadecimal code that I removed on this one

Try running antutu benchmark before and after, the result is amazing