[CentOS] Re: How to speed up Rsync transfers

[Stefano Stagnaro]

Are you using an ssh tunnel for your transfer? If so, have a look to the
HPN-SSH patches to dramatically improve OpenSSH performance:

http://www.psc.edu/networking/projects/hpn-ssh/

Ciao, Ste.

Dan Carl wrote:

> Is there a way to speed up rsync transfers?
> I tested the bandwidth with iperf (recommended to me in an earlier post &
> worked well)its as advertised by my ISP's around 740KB/sec.
> When I manually run my rsync script with the --progress switch the
> transfers are around 100KB/sec.
> I googled this and the only thing I found had to do with the TCP window
> which I understand to be the limiting factor. But if this is true how can
> I ftp stuff at 300KB/sec? (someone please enlighten me)
> 
> I'm backing up jpg files and some days they add 5+GB of images.
> My goal was to backup the images nightly, but at the 100KB/sec rate that's
> not possible.
> Dan