The first job is missing the second timing number "sum of all job wall clocks". But if you click through to the job it is listed just fine. In the second job, the finished_at time is 12:26. But the last log entry is 12:15. What's up with that? In the first and second job, the factor seems off (too low); the job wall clock number seems more or less accurate but the overall wall clock number seems too high (I guess that's the same bug as the previous point).