1c308bbbf5
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> |
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