Specifications

82 Optimizing IBM Netfinity Servers for SAP R/3 and Windows NT
Figure 44. Forground Session Priority
There are three settings for the boost indicator that determine the priority of
foreground applications.
• Maximum
For the best response time for the foreground programs.
• Middle
Gives background programs a better response time but still gives more
processor time to the foreground programs.
• None
Gives all programs equal amounts of processor time.
As an SAP R/3 application, database or centralized production server usually
executes background sessions, and the database and R/3 services are running in
the background, set this boost indicator to None.
2.13.7.2 Virtual Memory
Windows NT utilizes a virtual memory system, which means that it uses hard disk
space to temporarily hold loaded programs that are not currently being executed.
This is a technique used to reduce the amount of real memory that your system
must contain in order to run the operating system.
The technique is called paging and is a procedure whereby blocks of data from
physical memory are swapped to a file located on disk.
The paging file of Windows NT is PAGEFILE.SYS.
This is a contiguous area of disk that allows the Windows NT kernel to bypass the
file system to read/write requested pages. You can control the amount of
pre-allocated space used by PAGEFILE.SYS on your disk.
• Open the Control Panel.
• Open the System folder in the control panel.
• Select the Performance register tab.