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Commit 7c862c8b authored by JP Abgrall's avatar JP Abgrall
Browse files

init.rc: prep tcp_default_init_rwnd, set the default to 60 

The kernel's default is between 4~20.

Prepare for javaland to modify the value at runtime.

It can be done via
  setprop sys.sysctl.tcp_def_init_rwnd  <value>


Bug: 12020135
Change-Id: Id34194b085206fd02e316401c0fbbb9eb52522d2
parent 4046c132

rootdir/init.rc

+10 −1
Original line number Diff line number Diff line
@@ -390,6 +390,9 @@ on boot 
    setprop net.tcp.buffersize.gprs     4092,8760,11680,4096,8760,11680

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



# Define default initial receive window size in segments.

    setprop net.tcp.default_init_rwnd 60



    class_start core



on nonencrypted
@@ -426,9 +429,15 @@ on property:vold.decrypt=trigger_shutdown_framework 
on property:sys.powerctl=*

    powerctl ${sys.powerctl}



# system server cannot write to /proc/sys files, so proxy it through init

# system server cannot write to /proc/sys files,

# and chown/chmod does not work for /proc/sys/ entries.

# So proxy writes through init.

on property:sys.sysctl.extra_free_kbytes=*

    write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}

# "tcp_default_init_rwnd" Is too long!

on property:sys.sysctl.tcp_def_init_rwnd=*

    write /proc/sys/net/ipv4/tcp_default_init_rwnd ${sys.sysctl.tcp_def_init_rwnd}





## Daemon processes to be run by init.

##