The statistic per each test comes from model index, and total statistics come from update listener. when total statistics arrives, it has the snapshot of certain time, but when we fetch the statistic per test we have fetched the just arrived test. Therefore, the sum of each test's statistics does not equals the total statistics.
It was not serious before. Because we didn't show tps chart per test. Howver 3.1.3 it's very significant, and user may easily misunderstand.
The both statistics should come at the same sampling point.
Fix is necessary.