Netweaver Abap + Java on Windows 2003 RAm / Virtual Memory Configuration

[Former Member]

I installed a Netweaver Double Stack on Windows 2003 Server (Oracle) with 8 GB RAM.

Any Suggestion for the OS Virtual Memory Configuration and the Heapsizes of the Java Engine.

I defined VM on Windows 12000 -12000 MB

For the Heap Size of the Java engine i choosed:

-Xms2048m -XX:MaxPermSize=512M -XX:PermSize=512M -XX:NewSize=320M -XX:MaxNewSize=320M

In the Instanceprofil i configured 2048 MB phys. Memsize.

But with these configuration the system is not really fast.(f.e. in TA RSPLAN)

Any suggestions for a better RAM/VM Configuration ?

kind regards

[markus_doehr2]

> But with these configuration the system is not really fast.(f.e. in TA RSPLAN)

You configuration looks good. The challenge will be to find out, where the time is lost. What do you see in the ABAP instance when this transaction is executed (SM50/SM66)?

Markus

[Former Member]

Hi,

are you using 64 bit OS or 32 bit OS?

for JAVA VM check following sap note

Note 723909 - Java VM settings for J2EE 6.40/7.0

if you are using 32 bit OS ( not recommended as production server) then swap space should be 3 times of RAM

check Note 996600 - 32 Bit platforms not recommended for productive NW2004s apps

if you are using 64 bit OS then check Note 153641 - Swap space requirement for R/3 64-bit kernel

regards,

kaushal

Edited by: Kaushal Malavia on Jun 30, 2008 1:42 PM

[Former Member]

we have 64bit Version of 2003 Server

[Former Member]

HI,

did you check the following sap note?

Note 153641 - Swap space requirement for R/3 64-bit kernel

also check following sap note

Note 146289 - Parameter Recommendations for 64-Bit SAP Kernel

if you are getting problem for performance with RSPLAN then check following sap note

Note 1166629 - Performance of the Profitability Planning & Analysis (PPA)

regards,

kaushal

[Former Member]

Hi

For 64-bit, the minimum swap should be 20gb, it is recommended

note if your operating system and sapinst are 64-bit type only.

Regards

Bhaskar