Transaction summary

“Transaction Summary” reports committed transactions. “Committed Xacts” reports the number of transactions committed during the sample interval.

The count of transactions includes transactions that meet explicit, implicit, and ANSI definitions for “committed”, as described here:

If there were transactions that started before the sample interval began and completed during the interval, the value reports a larger number of transactions than the number that started and completed during the sample interval. If transactions do not complete during the interval, “Total # of Xacts” does not include them. In Figure 39-1, both T1 and T2 are counted, but T3 is not.

Figure 39-1: How transactions are counted