Latency and Rsync Transfers

Ryan Malayter malayter at
Fri Jan 29 07:33:49 MST 2010

On Thu, Jan 28, 2010 at 10:43 AM, Neal B <nrbwpi at> wrote:
> Hello,
> Working a few servers that are transferring data across country with a 75ms
> delay on a GIGE connection.  We can tune the tcp buffers on linux to improve
> the connections using iperf.  Does rsync use the tcp buffers of the OS or
> does it override these settings?

It will ise OS defaults unless you pass --sockopts to rsync.

Like so:
rsync --sockopts=SO_SNDBUF=128000,SO_RCVBUF=128000 <other options>


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