BUG? SOAPUI loadtest statistics - sampling rate?

Hi,

I've trying to understand the statistics file output from exporting from a SOAPUI loadtest.

I'd like the data to be sampled at 1 second intervals, but, for example, when I do a loadtest with "Variance" strategy and Interval set to 60 seconds, and then output the statistics, it looks like it's actually taking about 180 samples for a "cycle"/interval, whereas I'd expected the cycle to match the Interval that I set for the loadtest.

I've set the Resolution dropdown on the graph window to 1000, and also the sampling rate under the loadtest options to 1000, which from the Eviware webpages, should have made the statistics output with sampling at 1 second intervals, but the statistics output still look the same, with about 180 sample interval.

Does anyone know what I might be doing wrong?

Or is this possibly a bug in SOAPUI 4.0?

Thanks,
Jim