How to tune rsync to speed up?

[Kevin Korb]

NFS is slowing things down even more than your bandwidth measurements as 
it is also forcing --whole-file.

On 8/2/23 05:03, Perry Hutchison via rsync wrote:
> Sebastian G??decke via rsync <rsync at lists.samba.org> wrote:
> 
>> We're facing some flapping traffic when rsyncing atm 70T from
>> one server to an DELL Isilon.
>> Both systems are connected with 10G Fiber (not Channel).
>> So we started with one simple "rsync -a /src /dest" to the DELL
>> by using NFS3.
>> ...
>> I always thought (and had observed it so far with rsync) that it
>> makes full use of the network card ...
> 
> If you are using NFS, it is NFS -- not rsync -- which is managing the
> network traffic.  In such a setup rsync will perform about as well as
> cp(1).
> 

-- 
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,
	Kevin Korb			Phone:    (407) 252-6853
	Systems Administrator		Internet:
	FutureQuest, Inc.		Kevin at FutureQuest.net  (work)
	Orlando, Florida		kmk at sanitarium.net (personal)
	Web page:			https://sanitarium.net/
	PGP public key available on web site.
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,