perfSONAR User Q&A and Other Discussion

[Brian Candler <>]

Looking at the graphs from perfsonar 4.0, I notice some changes from 3.5, and I wonder whether all of these are intentional.

(1) If I set a throughput test to run at 1 hour intervals, it seems "jerky". Sometimes the interval between tests is 2 hours; sometimes it is only 20 minutes.

I don't understand why this is happening, when I've got a very minimal setup:

* box A has a single hourly throughput test plus latency test configured to box B and box C

* box B has a single hourly throughput test plus latency test configured to a remote box on the Internet

(2) It used to be possible to expand the graph further by dragging in an area under the graph.  If there is still a way to do it, I can't see how.

If I update the "start" value in the URL bar, it gets reset to the time 1 day before the end time.

(3) If I zoom in to the 1 day level, the summary window remains at 300 seconds (like it is at the 3 day level).  Previously at this level, the summary window was 0.

This means that packet loss shows as n out of 3000 packets rather than n out of 600 packets.

I *can* manually update the URL bar to set summaryWindow=0, but since I can't zoom in any further, it's very hard to make out the minute-by-minute detail.

Maybe the solution to (2) and (3) is just to introduce a new report range on the drop-down, e.g. 4 hours or 6 hours, with summaryWindow 0.

Regards,

Brian.