RFC: slow-down option

[Joe]

This is way beyond my level of expertise, but wouldn't something like
ionice help with that?

Also, check out:

2 more pipe utilities

Viewer & throttle
http://www.ivarch.com/programs/pv.shtml

Throttle - limits bandwidth of a pipe - for use with network transfers
http://linux.die.net/man/1/throttle

HTH

Joe

On 04/03/2014 07:41 AM, Marian Marinov wrote:
> Hello,
>
> I've been using rsync on some backup servers for years. In 2011 we had
> a situation where the FS of the backup server was behaving strange,
> even thou there was enough available I/O, the fs(ext4 on 16TB
> partition with a lot of inodes) was lagging. After much testing we
> found that rsync was hammering the fs too hard.
>
> At that point I patched rsync to add a stupid option which will sleep
> for a while before creating new file.
> That helped us a lot to keep the same rate of concurrent rsyncs to the
> same machine.
>
> I would love your comments on this, generally stupid approach to the
> problem :)
>
> Best regards,
> Marian
>
>
>
>