[Swift-devel] computing job queue time.

[Ben Clifford]

> You should look at the difference between Submitted and Active.
> 
> Though I'm not sure to what extent different providers keep the
> timestamp of original events, or to what extent the middleware itself
> provides these timestamps. But the ideal case would be that in which you
> can extract the exact time at which an event occurred (not when it was
> received).

For GRAM2 and GRAM4, Active notifications were both pretty poor (a minute 
error or more would not be surprising). There's a log plot graph or two 
somewhere to compare info start time with Active notification time to show
that.

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