In 7-Mode only schedules for dedupe jobs are possible beginning at full hours e. g. 8:00am 10:00pm etc. Having numerous jobs it leads to situations where up to 8 jobs are running during the first minutes of an hour whereas the last minutes of an hour are rarely used for dedupe jobs. Although running with low priority we found 8 jobs do have an impact on performance. So we found it useful to limit the number of running dedup jobs by setting the hidden option "sis.max_active_ops" to a value of e. g. 6. This leads to a more even distribution of the jobs.