perfSONAR User Q&A and Other Discussion

[jim warner <>]

On 12/13/2010 5:19 PM, Jason Zurawski wrote:
> This field indicates if BWCTL was able to test bandwidth in each 
> direction: from your host to the remote host, and from the remote host 
> to your host.  I will add both of these clarifications to the FAQ.
==
Thanks.  I'll note that this is the only field on that screen that 
presents a *result*.  The rest of the columns contain test parameters.  
That is a curious design choice.  While documentation always helps, I 
suggest that column should be dropped in the interest of consistency and 
clarity in the next release.  If the test is only working in one 
direction, this will show up in the bar graphs just below the parameter 
display -- assuming the site labels are large enough to be read.

It would, I think, be helpful if the values in the Window column said 
"auto" instead of using a blank column to indicate that auto-tuning is 
in effect.  And some indication like "N.A." for the bandwidth column 
might make sense for TCP tests.

At Santa Cruz we don't set the window size so I went looking for 
perfsonar instances that do.  The one I found (130.126.0.109) shows a 
window size of "3" for all tests.  I was expecting to see something in 
KB or MB.  It would be a good addition to the documentation to explain 
what is in this column.

-jim