Memory related Profile Parameters calculation in Production Env.

[Former Member]

Hi All,

Current Physical mem available Kb: 12581480 for our production system.

I want to set the values for abap/heap_area_dia, abap/heap_area_nondia and abap/heap_area_total , How to calculate these values.Is there any method to do the same???

Regards,

Prashant

[Former Member · Accepted solution]

Hi,

This really depends on your landscape. Please find below link for SAP memory management. Attached link might help you.

[http://www.scribd.com/doc/7330067/SAP-Memory-Management]

Manoj

[Former Member · Accepted solution]

Hi Manoj,

Could you pls give me some kind of eg. for memory calculation.

For example if I have 50 concurrent users in our Production Env. and Physical RAM is 12 GB then what will the values for these profile parameters.

What is the logic behind the same.

Regards,

Prashant

[JPReyes · Accepted solution]

what are the current values?

Regards

Juan

[Former Member · Accepted solution]

Hi Juan,

Memory related parameters values in CI -:

PHYS_MEMSIZE : 6500

abap/swap_reserve 20971520

abap/heaplimit 41943040

Parameters Values in App Server1-:

ztta/roll_area 15000000

abap/heap_area_nondia 2000683008

abap/buffersize 760000

Parameters Values in App Server2-:

ztta/roll_area 15000000

abap/heap_area_nondia 2000683008

abap/buffersize 760000

In Production Env RAM of CI is 12 GB and RAM of Apps servers in 4GB each.

Please suggest.

Regards,

Prashant

[JPReyes · Accepted solution]

You can use the same value of non-dia for dia and for the total multiply them by 2.... that should be enough.

As previously mention... there no exact formula for this, the perfect value should

Ensure that the value is high enough to fulfill all the regular memory requirements, but is not so high that the work process could reach the swap space limit of the operating system

Read,

http://help.sap.com/saphelp_nw70/helpdata/en/02/9626c0538111d1891b0000e8322f96/content.htm

Regards

Juan

[Former Member · Accepted solution]

Thanks Juan.

[Former Member]

Hi,

There is no absolute rule. You have to set initial values from the guidance of OSS notes and then you have to observe and measure your system to be able to tune it to your specific usage.

Regards,

Olivier