Re: how to increase through put of LAN to 1GB
On Thu, Jun 21, 2012 at 11:19:40AM +0200, Bartek Krawczyk wrote:
> 2012/6/21 Muhammad Yousuf Khan <sirtcp@gmail.com>:
> > i am using bw-ng however i am actually learning these stats from "scp"
> > copy command and secondly from samba when i try to download some huge
> > files from samba to windows host. my network graph bumps up n down b/w
> > 200 to 300 Mbps.
>
> scp is a bad idea - think about all the encryption which significantly
> decreases the throughput.
> Read about tuning Linux network stack with sysctl. It will help in
> case of samba.
Also, openssh has fixed-size transmission buffers to avoid the security
issues associated with writing dynamic-sized ones. There are third-party
patches that can improve SFTP performance by replacing the static buffers:
http://www.psc.edu/index.php/hpn-ssh
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