perfSONAR User Q&A and Other Discussion

[Michael Johnson <>]

Hi Brian,

Response below

On Fri, Dec 19, 2014 at 09:23:59AM +0000, Brian Candler wrote:
> So I guess what's happening is that the Dashboard knows about two 
> endpoints at each node (one for throughput and one for latency), and 
> graphs all the combinations including the useless ones like 
> throughput A <-> latency B and vice versa.

That's exactly right. It queries all the available test types for each 
source/dest pair. If there's no data for that test type it ignores it. The 
intent of this feature is to be able to see all the results, even if they use 
separate interfaces or hosts for latency and throughput, not to be able to 
compare, say, throughput for multiple hosts on the same chart. It doesn't 
handle that situation well.

You can setup a dashboard similar to the ESnet example:
http://ps-dashboard.es.net/index.cgi

It runs Maddash, which can be configured to combine results as you see in the 
other examples I sent. I'm not sure the details of how to set this up so if 
you want to do that, I can get someone who is more knowledgeable in that area.


Thanks,
--
Michael Johnson
GlobalNOC Software Engineering
Indiana University

812-856-2771

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