Average response time in sap (ST03N)

By | 01/12/2013

Average response time in sap (ST03N)  and methods to improve performance.
Analysis:

  • do a response time breakup using ST03 statistics, to see which component is taking the most time
  • analyze your database I/O performance in ST04
  • analyze top response time transactions in more detail (ST03, STAD)
  •  analyze top expensive SQL statements in more detail (ST04, ST03, EarlyWatch alert report)
  • analyze CPU usage (ST06, OS07, OS dep. tools)
  • analyze RAM usage and paging (ST06, OS07, OS dep tools)
  • check whether your SAP memory parameters are OK (ST02)
  • check whether DB parameters are OK (DB specific notes)

Optimizations:

  • create indexes according to SQL analysis
  • let ABAP programmer take a look at heavy transactions and report (especially Z-code)
  • increase CPU processing power
  •  increase server RAM
  • adjust database parameters
  • adjust SAP instance profile parameters

SAP benchmarks (www.sap.com/benchmark) use 1000ms as a reference.
All hardware benchmarks have a 1s response time.
Some organizations have set KPIs to response time values. Normal values are 500ms and 750ms.


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