Resolution:
In 8.0.2, development has created a patch with the additional options:
1. Instead of updating the wasted space for every segment every night, user can update the wasted space only for segments that were recently analyzed, or only for X % of the segments every night.
2. . User can turn on tracing to see which statement runs when in our nightly repository job.
Patch and instruction are included in "Space Manager 8.0.2 repository job options.zip" that attached to this solution