ndt-users list created

[Nat Stoddard <>]

I have a question for anyone watching this thread:

Has anyone ever recorded results from NDT between two 10 gig capable servers or 
client/server which gives results of close to 10 gigs in both directions as a 
baseline?

Or are we encountering some type of limitation of the software?

I asked the same questions, and posted the same type of data a while ago to this 
list but I am still facing the same issues you are.

My iperf results always get over 9 gigs both ways, but NDT server-to-client is 
always around 2 gigs or less.

Sincerely,
Nat

On 5/15/13 1:11 PM, Byron Hicks wrote:
> On 05/15/2013 09:07 AM, Aaron Brown wrote:
> > Since it's happening only on the server -> client side, my guess is
> > that its related to NDT taking web100 snapshots. My recollection is
> > that the default is to check every 5ms. Try editing /etc/sysconfig/ndt
> > and adding --snapdelay 25 to the WEB100SRV_OPTIONS line, and then
> > restart NDT. This will back off that snapshotting so that it occurs
> > every 25ms. Now, I'm not positive how that might affect some peak
> > calculations, but it can't hurt to try.
>
> Ok, I tried that, and I got the same result.

--
Nathaniel T. Stoddard
LBLnet Services Group
Lawrence Berkeley Lab