WPs Calculation

[#1]

Hi,

We are in the process of sizing the WPs including DIA, BTC, UPD, and SPO. Is there any standard SAP note which guide us calculating the WPs sizing on the instance?

Thanks,

Kris

[Former Member]

Hi,

The number of work processes in a SAP system depends on the amount of RAM/physical memory available.

As per the note 39412, the minimum number of work process for a SAP system is as listed below,

For a central system: 5 DIA, 1 UPD, 0 UP2, 1 BTC, 1 ENQ, 1 SPO

For a dialog server: 2 DIA, 0 UPD, 0 UP2, 0 BTC, 0 ENQ, 0 SPO

The general thumb rule for WP is,

No.of Dialog WPs=RAM Size(MB)/250. and No.of Background Wps=RAM Size(MB)/750.

Hope this clarifies.

Regards,

Varadharajan M