Memory buffer tuning - Why bother?

Hi
We are running ERP 6 on Win2003 64 bit, SQL2005 SP2 (2.6TB in size), 8 App servers with 16GB RAM (avg 60% used). As part of our housekeeping ,we are looking at addressing some of the swaps in ST02.
Currently we are experiencing swaps in the following buffers:
Nametab - Field definition: 150 000 swaps
Program: 300 000 swaps
Export/import: 500 000 swaps
Our current avg dialog response time is between 700-800ms per month (1400-1600 concurrent users).
Would increasing these buffers have any visable positive affect on the system or for the end-user? How important is it to address these buffer swaps? SAP does not report on it in the weekly/monthly EWA reports.
Regards,
CJ

Hi,
You have quite a lot of swaps but you don't say if it is per day or since startup.
I just checked our own production ECC6 system and we have only about 600 to 1500 program buffer swaps on only 3 of the 6 app servers. zero swaps for other buffers.
But we get the same kind of monthly avg dialog response time (600 ms).
If you have time, you can tune your buffer sizes, it could only be better but you will not get a big improvement.
With a program buffer much too small, I 've already seen very bad performance but it is not your case.
Some times, I like to say : If it is not broken, don't fix it!
Regards,
Olivier

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Trollhorn wrote:
Hi there!
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