I continue to be impressed with GroveStreams. The chart below summarizes a 25+ hour test I ran. My sketch started with SurferTim's GET method example, I added some stats to track number of posts, connect failures, timeouts, and response time. (Response time starts just before the connect, and stops after the response is received and the server disconnects.)
Data was sent to GroveStreams once per minute. No connect failures or timeouts were recorded. One post did get lost somehow. The sketch is completely open-loop, i.e. it posts the data but does not attempt to ascertain the success of the operation nor do any retries. Response time was very good, with about 97% under 1 second and about 99% under 1.5 seconds.
This test of course does not constitute a measurement of just GroveStreams, but also of my equipment and everything else in between. But I would have to say that this is phenomenally good performance as compared to my observations with other similar "IoT" services. So my gut feel is that GroveStreams is doing their part of the job quite well.
I'll be continuing to test in various ways, for now, the same sketch is still running. Check out the dashboard I created on GroveStreams, it updates once per minute. (The link is a guest logon, a terms-of-service agreement box will pop up, just OK it.)
