Number of tasks requesting a region <count>
<count> tasks are waiting for region <region_name> owned by task <task_id>
Region <region_name> blocked from task <task_id> last <duration> seconds
<region_name>: collision rate <percentage>%, <number_of> collisions, <number_of> waits (<percentage>%), <number_of> accesses on region <region_id>
<region_name>: collision rate <percentage>%,<number_of> collisions, no waits,<number_of> accesses on region <region_id>
There are different types of synchronization objects (reader writer locks, regions). Find some descriptions under DBAN_REGIONS.csv in "More information".
Collisions and wait states have a negative impact on the performance as the tasks hinder each other.
If there are high collision rates and blocking situations they should be investigated in development.
Relevant DB-Analyzer Files
Helpful with ...
|DBAN_REGIONS.csv||Information about accesses to critical sections|
Content / Helpful with ...
|Session 27: SAP MaxDB Multi Tasking||Find more information about region use.|