Most important SAP system performance analysis transactions:
Following is a list of the few most important performance analysis transactions and a brief explanation of their purpose of various systems (BW, ECC, SCM, SRM, ERP, CRM etc)
SAP Memory Configuration monitor checks the SAP Buffers and SAP Memory areas for problems such as swapping. Here we can check the utilization of SAP shared buffers, extended, roll, paging and heap memory can be obtained from the SAP memory configuration monitor
General performance statistics such as response time. This workload monitor can show response time daily/weekly/monthly and is mainly used for checking dialog/background/update/spool/rfc response times
It gives a picture of databuffer/cache quality, SQL cache catalog/pin ratio. For further detailed analysis click button ‘Detail Analysis Menu’
The Operating System Monitor is used as a snapshot of CPU utilization, RAM, Swap space. For further detailed analysis click button ‘Detail Analysis Menu’
Mainly used for monitoring current system activity via the Global Work Process Overview
It’s a store for ABAP Dumps such as –
- All remote system lock
- System locks
- Failed login attempts
- Look for messages like: –
- Process message
- Printer problems
- Signal 11
- Short dumps
- Matchcode problems
- Aborted postings
Active Users and its sessions. Also check memory, page, roll, priv usage via goto –>memory
By clicking on the session, we can have a detailed analysis. If we want we can end-user session from here.
The number of active users can be obtained from the Global User Monitor
SARFC: An overview of server resources and under column description whether there is a problem
List of SAP directories
It gives an idea about exclusive wait situations using the Database Lock Monitor.
We can see a number of deadlock along with table name
Check database growth, free space in tablespaces, critical objects, extents of tables and indexes
We can get current size of tablespaces by clicking “current size”
Check backup/restore situation
On Oracle check for the search for messages with the “SEVERITY” type “E” (error) that occurred in the past 4 weeks.
Check administration tasks such as backup/recovery, archive frequency, administration tasks
The tool allows for the collection of data on CPU Utilization, Memory Management, Database Performance, Work Process Utilization, Workload, STAD, RFC etc. The information linked with each of the above areas is stored in the database for further usage. The data can be collected for predefined periods of time and for a set frequency of seconds STAD: Used to check the response time of programs/transactions and provides various levels of detail which can be tailored.
The ST14 application monitor is mainly used during SAP GoingLive session. Analysis batch jobs collect performance-relevant key figures such as document statistics and customizing settings, the analysis results can be viewed as a tree and downloaded to a service session. See SAP Note 69455.
ST05 traces every action of a user on a server. SQL trace needs to be switched off and the ST05 writes trace files into the local filesystem and overwrites them circularly.
ST12 combines ABAP and performance (SQL) trace into one transaction, with major functional enhancements especially for the ABAP trace part. In a joint switch on/off with the performance trace, ST12 allows activating the ABAP trace for another user. See Note 755977. The ST12 can also be used for tracing work process, program/transaction or a user. At a click of a button, you can view the SQL and ABAP trace information.
Other useful transactions that can be used depending on circumstances: SM58 SM59 SMQ1 SMQ2 SMGW SDCCN SM37 SM51 SM50 RZ04 RZ10 RZ20 SE16 SE12 TU02 DB03 SMQS DB21 SMQR SM13
Discuss with your developers/programmers if performance improvements are possible. For performance problems caused by customer programs, SAP offers SAP Customer Program Optimization (http://service.sap.com/cpo) by eliminating costly performance bottlenecks by tuning critical customer programs.
Also, ensure you have setup Earlywatch Alert as per SAP Note 207223. A good starting point for performance documentation is:
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