Checking CPU Statistics (SAP Library

Checking CPU Statistics

Use

The CPU statistics are important to ensure smooth system performance. The table below displays any CPU bottlenecks that have occurred.

Display	Procedure
Idle CPU 0%	Check the analysis for previous hours.
Load average >3	An average of more than 3 processes waiting in front of the CPU.

Procedure

To display the CPU processes that consume the most resources, choose CCMS ® Control/Monitoring ® Performance menu ® Operating system ® Local ® Activity.

Then choose Goto ® Current data ® Snapshot ® Top CPU processes.
Check the following additional performance factors:

Which processes are causing the load?

Check whether all other processes with high CPU utilization (memlog, r3trans, nwengine, brbackup...) are necessary.

If high values for CPU time are displayed, the process may be in a loop.

The resident size of an SAP work process should be approx. 9-12 MB, depending on the size of the ztta/roll_area.

SAP work processes with high CPU utilization can also be displayed with the SAP process overview. The SAP process overview shows the ABAP program that is using the CPU.

SAPGUI should not run on the application server.

See also:

Operating system monitor