bad performance on SAP Netweaver 7.1 CE

[Former Member]

Hello together!

Ugly ugly u2013 we have a fresh installation of a SAP Netweaver 7.1 CE with one INTEL XEON 3,6Ghz and 3 GB RAM.

But the performance is more than bad u2013 that means you make one click and you have to wait approx. 10-15 seconds.

I tried to check out some performance parameters but I do not really find something to improve the performance.

Of course with one CPU you can not expect a good performance but from my subjective feeling the performance is more than bad.

Can anybody help me or have an idea which parameters can be changed?

Thanks a lot!!

Best regards

Thomas

[Former Member]

Hello!

I have the same problem with perfomance. But I try to do it on vmware.

How I can improve the perfomance?

Regards,

Konstantin

[Former Member]

Very good!

[Former Member]

Hi Thomas,

How many nodes do you have, and what is your max heap per node? What is your setting for the perm memory space?

Best Regards,

Matt

[Former Member]

Hi Matt!

I would say we have one node (per default installation) server00.

Memory VM Parameter u2013

maxHeapSize is 512MB,

maxPermSize = trunc(450 max (($*0.2) min 1024)) that means 491MB

I assume that the AMOUNT_MEMORY will be detected automaticlly.

Total RAM of Server 3 GB and the Database has fixed memory amount of 1228 MB.

Pagefile of server is approx 11264 MB fixed, it is a x64 Windows server.

Best regards

Thomas

[Former Member]

Hi Thomas,

Here are some settings you can try to see if they help.

Total memory = 3072 MB

Memory for CE (0.8 - AMOUNT MEMORY) = 2457 MB

Perm memory = 491

1 node

Max heap/node = 1229 MB

DB memory = 1075

Although I think one of your biggest issues is one CPU (is it dual core?).

Best Regards,

Matt

[Former Member]

Hi Matt!

Thank you very much! I will implement them for testing.

I think so too, the cpu is also one big problem.

The cpu is not a dual core.

Best regards

Thomas

[Former Member]

Hi Matt!

Good advise - i changed max/heapsize and the DB memory. The performance is better!!

Please one more question:

Is it general thumbrule

80% of total amount of memory for Java Instance (initial/HeapSize)

50 % per node of initial/HeapSize

and 35% for DB Instance of total memory?

Thank you!

Best regards

Thomas

[Former Member]

Hi Thomas,

I have information about the formulas our zero admin templates that can be used for memory settings. I am not at liberty to post them here, and they can also change. Let's just say that your rule of thumb is ok for a starting point, but factors can make it more complex than that.

Best Regards,

Matt

[Former Member]

Hi Matt!

I understand

Thanks again and

best regards

Thomas