Syncpoint elapsed time

The syncpoint elapsed time is the elapsed time the transaction spent processing a syncpoint.

Figure 1 shows the relationship between the syncpoint elapsed time (field 173 in group DFHSYNC) and the suspend time (field 14 in group DFHTASK).

Figure 1. Syncpoint elapsed time
The figure is described in the surrounding text.

The syncpoint elapsed time begins during a period of dispatch and CPU time. A period of suspend time follows, which includes a dispatch wait at the end. When the dispatch wait and the suspend time end, there is another period of dispatch and CPU time. When this period ends, another period of suspend time begins, which includes another dispatch wait. When the dispatch wait and the suspend time end, another period of dispatch and CPU time begins. Shortly afterward, the syncpoint elapsed time ends, while the period of dispatch and CPU time continues. Therefore, the syncpoint elapsed time in this example includes two complete periods of suspend time.