diff options
author | JP Abgrall <jpa@google.com> | 2014-02-21 12:05:01 -0800 |
---|---|---|
committer | JP Abgrall <jpa@google.com> | 2014-03-13 00:25:51 +0000 |
commit | efbf36f2dad8f083de6f48dbb682461d7cfa9781 (patch) | |
tree | 189eff31399bd4863c12eac40827fd357550cf9c | |
parent | 6941a83c2dd34df606df13972576fbc23172c3c5 (diff) | |
download | core-kitkat-mr2-release.tar.gz |
init.rc: prep tcp_default_init_rwnd, set the default to 60android-4.4w_r1android-4.4.4_r2.0.1android-4.4.4_r2android-4.4.4_r1.0.1android-4.4.4_r1android-4.4.3_r1.1.0.1android-4.4.3_r1.1android-4.4.3_r1.0.1android-4.4.3_r1kitkat-wearkitkat-mr2.2-releasekitkat-mr2.1-releasekitkat-mr2-releasekitkat-dev
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
(cherry picked from commit 7c862c8b5e59cbe216a5bc092c01f1ecba8e9de4)
-rw-r--r-- | rootdir/init.rc | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/rootdir/init.rc b/rootdir/init.rc index 21ebccb79..1ee9fbf4a 100644 --- a/rootdir/init.rc +++ b/rootdir/init.rc @@ -369,6 +369,9 @@ 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 class_start main @@ -401,9 +404,15 @@ 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. ## |