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Commit feb666d4 authored by Giulio Cervera's avatar Giulio Cervera Committed by Steve Kondik
Browse files

Update tcp buffersize settings 

Soem of these values are from CAF, some of these are
from various shipping devices, some are educated
guesses based on the properties of each connection.

In general, the higher the bandwidth-delay product
of a network, the larger the buffer needs to be.

Change-Id: Idd8cd27727b5e66bd3a46be5f9853380acbda8ba
parent 1e6a58b6

rootdir/init.rc

+11 −10
Original line number Diff line number Diff line
@@ -308,17 +308,18 @@ on boot 


# Define TCP buffer sizes for various networks

#   ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax,

    setprop net.tcp.buffersize.default 4096,87380,110208,4096,16384,110208

    setprop net.tcp.buffersize.default 4096,87380,704512,4096,16384,110208

    setprop net.tcp.buffersize.wifi    524288,1048576,2097152,262144,524288,1048576

    setprop net.tcp.buffersize.lte     524288,1048576,2097152,262144,524288,1048576

    setprop net.tcp.buffersize.umts    4094,87380,110208,4096,16384,110208

    setprop net.tcp.buffersize.hspa    4094,87380,262144,4096,16384,262144

    setprop net.tcp.buffersize.hsupa   4094,87380,262144,4096,16384,262144

    setprop net.tcp.buffersize.hsdpa   4094,87380,262144,4096,16384,262144

    setprop net.tcp.buffersize.hspap   4094,87380,1220608,4096,16384,1220608

    setprop net.tcp.buffersize.edge    4093,26280,35040,4096,16384,35040

    setprop net.tcp.buffersize.gprs    4092,8760,11680,4096,8760,11680

    setprop net.tcp.buffersize.evdo    4094,87380,262144,4096,16384,262144

    setprop net.tcp.buffersize.lte     4096,87380,1220608,4096,16384,563200

    setprop net.tcp.buffersize.umts    4096,87380,563200,4096,16384,110208

    setprop net.tcp.buffersize.hspa    4096,87380,704512,4096,16384,110208

    setprop net.tcp.buffersize.hsupa   4096,87380,704512,4096,16384,262144

    setprop net.tcp.buffersize.hsdpa   4096,87380,704512,4096,16384,262144

    setprop net.tcp.buffersize.hspap   4096,87380,1220608,4096,16384,393216

    setprop net.tcp.buffersize.edge    4096,26280,35040,4096,16384,35040

    setprop net.tcp.buffersize.gprs    4096,8760,11680,4096,8760,11680

    setprop net.tcp.buffersize.evdo    4096,87380,563200,4096,16384,262144

    setprop net.tcp.buffersize.evdo_b  4096,87380,704512,4096,16384,262144



# Set this property so surfaceflinger is not started by system_init

    setprop system_init.startsurfaceflinger 0