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Former Member
Apr 03, 2013 at 01:46 PM

Performance tuning ABAP Production system

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Greetings, we have been advise to increase our SAP buffer area on all our servers by 20% (abap/buffersize) ensuring we have enough physical memory available on the server. I want to make sure I am doing this correctly. We are currently following the SAP Note 88416 - Zero adminstration memory management for ABAP servers. Since we are going to kernel 7.2, what suggestion do you have regarding the physcial memory and/or buffersize?

Please note the following:

SAP ECC EHP4

Window 2008 64 bit

Oracle 10.2.0.4

Kernel 7.2

System Parameters:

abap/buffersize = 400000 (increase 20% to 480,000)

abap/heap_area_dia = 2,000,000,000

abap/heap_area_nondia = 0

abap/heap_area_total = 17,176,723,456

abap/heaplimit = 40,000,000

PHYS_MEMSIZE - 16,381

em/initial_size_MB: 16,381

em/max_size_MB 100000

ST04

Data buffer: 1,015,808

Logical read: 92,335,673,525

Quality: 96.7%

Physical read: 3,060,128,257

Size default pool (KB): 1,015,808

Physical write: 64,098,659

Buffer busy waits: 18,007,873

Shared pool:

Size (kb): 655,360

Buffer wait time: 54,244

We had a big performance issue ... we usually restart SAP to clear out the buffers but want to make tuning our permit solution...

Thank you in advance.