Work Process Increase

[Former Member]

Dear All,

I have installed ERP 6.0 EHP6 system Dev and Quality and production (cluster) Environments,after installing in each server default no of work process is in each server are below.

Dialog -9

Enquee-1

Upd-1

UP2-1

Spool-1

Background -3

Now I am planning to increase the update work process and background work process through RZ10 ,because my developers are saying while activating smartfroms system will taking time while activating the smart forms.

Please suggest whats the criteria of increase the work process can i directly increase in RZ 10 and restart the instance .

Please suggest and guide me

Thanks

[americo_goncalvesqualho · Accepted solution]

First of all you should only increase the number of work processes if you are sure there are sufficient CPU resources to cope with the increase. Normally there should be at least one or two Dialog work process in SM50 without any CPU time. Monitor your CPU utilization when increasing the number of work processes.

But also be concerned if the memory usage is over 90% during peak dialog hours as this would indicate that your hardware resources are not sufficient for the workload.

See also SAP Note 39412 'How many work processes should be configured?'

[Former Member · Accepted solution]

Hi,

Can I increase the update work process directly 1 to 5 (UPD) and UP2 =2 .

Is there any issue will arise for increasing update work process.

Thanks

[americo_goncalvesqualho · Accepted solution]

General advice - Increase the number of work processes gradually:

1) Add x additional dialog work processes.

2) Do not stop the Sap system for a week - lets say.

3) Using sm50 you can observe if the x additional dialog work process

   were used ( cpu time greater than zero).

   It makes no sense to add work processes if nobody use them.

4) The ideal is a configuration in which at  least one (but no more this is not a rule, please get the idea and not the numbers) work process is always free.

5) if necessary, repeat the above four step with the other kind of work processes , EXCEPT ENQUEUE WORK PROCESS.)

[Former Member · Accepted solution]

Hi ,

You need to take into account the user load and your system resources for deciding the number of WP.

Analyze your work processes while the development team are complaining of slowness and understand where the bottleneck is.

You can see what your work processes are doing in SM50

You do need more update work processes.

I would increase the UP2 to 2 and upd to 3 and see if it helps

Also , use RZ04 to define operation modes.

That way you can use the available work processes to be available for more Background processing during the night and more dialog work processing during the day or vice versa depending on your requirment.

Also,  the ST03N transaction can give you a very good idea about the bottlenecks in the system and thereby improve the performance

Activating smartforms is normally a slow process but you can help your development team withe the improvements from basis side.

Please also see

http://help.sap.com/saphelp_nw70/helpdata/en/02/962817538111d1891b0000e8322f96/frameset.htm

http://it.toolbox.com/blogs/sap-on-db2/tuning-the-number-of-work-processes-part-ii-13173

[Former Member · Accepted solution]

Hi,

You only need to increase the number of work processes incase all the work processes are used, you can check the same via SM50. If the developers complain that your system is slow it could be because of many reasons, the solutions you could try are

1) Try to do some performance tuning

2) Check whether you have ran SGEN..

3) Try to update your kernel to latest level.

NB: Try to increase the profile abap/buffersize by 15%, provided you have enough memory to spare. Make sure you have taken the backup of your profile directory.

Thanks

Sheetal