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Use

UKT <ukt_id>: commands: <number>, dispatches: <number>, task <task_id> is running, <number_of> tasks are waiting for CPU

UKT <ukt_id> is running since <duration> s, actual run queue length is <number>

 

Explanation

 

User Response

The provided information is helpful to identify a possible CPU bottleneck on your system.

The message '<number_of> tasks are waiting for CPU' indicates a (short-term) "overload" of the mentioned UKT. If you get the message frequently for almost all UKTs, increasing MaxCPUs / UsableCPUs could make sense, if there is available hardware capacity. 

 

More Information

Relevant  DB-Analyzer Files
Helpful with ...
 DBAN_UKT_CPU_UTILIZATION.prt Find detailed information per UKT.
 DBAN_CPU_UTILIZATION.csv Provides information of CPU usage in user and system mode.
SAP Note
Helpful with ...
  
Expert Sessions (Link to trainings)
Content / Helpful with ...
 Session 26 - SAP MaxDB Multi TaskingDescribes general mechanisms how CPUs are used in MaxDB and which parameters define the usage of CPUs.
Documentation (links)
Helpful with ...
  

                            

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