In my installation transactions have long rollwaittimecouri

[edurne_murgiondo]

Hi,

We have a virtual cluster  active/active Windows server 2012 with two instaces. When I check the transaction st03n  to improve response times,  I see that transactions have a high value in rollwaittime.

I have done traces to those transactions that have much rollwaittime and  I saw that the call to OLE_FLUSH_CALL takes quite a long time.

     CPU time                     172 ms     Number      Roll ins           12

     RFC+CPIC time                232 ms                 Roll outs          12

                                                         Enqueues            0

     Total time in workprocs      502 ms

                                             Load time   Program             2  ms

       Response time           11.410 ms                 Screen              0  ms

                                                    CUA interf.         0  ms

     Wait for work process         12 ms

     Processing time              478 ms     Roll time   Out                31  ms

     Load time                      2 ms                 In                  4  ms

     Generating time                0 ms                 Wait           10.896  ms

     Roll (in+wait) time       10.900 ms

     Database request time         18 ms     Frontend    No.roundtrips      13

     Enqueue time                   0 ms                 GUI time       10.971  ms

                                                         Net time           57  ms

I do not know exactly what the problem with the rollwaittime , Does anyone have a similar problem in your facility?

I appreciate it any suggestions

Regards

Edurne

[raviraj_sap]

Hi Edurne

Please check the following:

Displaying Transaction Profiles - Workload Monitor - SAP Library

Thanks

Ravi

[yakcinar]

Hello Edurne,

Can you check below note?

8963 - Definition of SAP response time/processing time/CPU time

As of Release 4.6, roll wait times also occur when the R/3 system communicates with the controls in the front end. While the data in the front end is processed, the R/3 context is rolled out, and the work process is released as a result. This may occur several times during a transaction step. If front-end office applications (such as Microsoft Word) are started and only closed after a long time (more than several minutes), a very long roll wait time also occurs.

Regards,

Yuksel AKCINAR

[Former Member]

Hi Edume,

Please also check if,

• Dialog max run time is set to a high value.
• There are enough dialog work process to accommodate user load on the system.
• The GUI time is not high.
• Connectivity between you SAP application server and GUI is fine, there is no packet loss.

Regards,

Prithviraj.