Diagnosis
Ratio between the number of collective delivery runs with along runtimeand the number of all collective runs within the period to analyze.
This ratio is relativized if a large number of collective runs isstarted as a background job. The system load during collectiveprocessing in the background is not necessarily correlated with itsruntime. In this case, you should take care that these collective runsare not carried out at the same time as other collective runs. They maybe less efficient because the collective runs mutually block theirorder and material data.

Procedure
If the ratio is high, it is to be checked whether less system load ispossible by starting the collective runs in a shorter period. Thesystem load of collective delivery processing is increasing at a fasterrate than the number of documents that have been processed.
Further documentation