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The default receive window size in dropbear is hardcoded to 24576 byte to limit memory usage. This value was chosen for 100Mbps networks, and limits the throughput of scp on faster networks. It also severely limits scp throughput on high-latency links. Add an option to set the receive window size so that people can improve performance without having to recompile dropbear. Setting the window size to the highest value supported by dropbear improves throughput from my build machine to an APU2 on the same LAN from 7MB/s to 7.9MB/s, and to an APU2 over a link with ~65ms latency from 320KB/s to 7.5MB/s. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This is the buildsystem for the OpenWrt Linux distribution. Please use "make menuconfig" to choose your preferred configuration for the toolchain and firmware. You need to have installed gcc, binutils, bzip2, flex, python, perl, make, find, grep, diff, unzip, gawk, getopt, subversion, libz-dev and libc headers. Run "./scripts/feeds update -a" to get all the latest package definitions defined in feeds.conf / feeds.conf.default respectively and "./scripts/feeds install -a" to install symlinks of all of them into package/feeds/. Use "make menuconfig" to configure your image. Simply running "make" will build your firmware. It will download all sources, build the cross-compile toolchain, the kernel and all choosen applications. To build your own firmware you need to have access to a Linux, BSD or MacOSX system (case-sensitive filesystem required). Cygwin will not be supported because of the lack of case sensitiveness in the file system. Sunshine! Your OpenWrt Community http://www.openwrt.org