High Memory usage by disp+work

[Former Member]

HI all,

We had an issue today where a couple (about 9) disp+work prossors where taking over 1.3GB or RAM each with the highest topping out at just over 2.5GB.

System:

HP RX8620 (itanium)

SAN Attached (HP EVA6000)

Win2003 SP2 IA64

32 GB RAM

8 x IA64 CPU's

SQL 2005 SP2 (IA64)

My concern here is that with all this RAM being taken up by disp+work the system started to page at a high rate which then caused my SQL instance to slow to a dragging pace which caused the application to slow as well :-s

I'm fairly new to SAP... so go easy on my 😛

Thanks in advnace,

Paul

[Former Member · Accepted solution]

The issue here is you cannot trust the memory usage statistics you see at the OS level for work processes. They include shared memory areas so there is much replication of memory allocation.

Go to ST02 - Detailed Analysis - Storage for an idea of what is used and add to that the DB memory size if on the same box and also say 1GB for OS and associated memory grazers