Compaq 307560-001 Performance Analysis and Capacity Planning for Microsoft Sit - Page 17

memory-mapped files. The Physical Disk

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Page 17 highlights

WHITE PAPER (cont.) 1...7 Network Memory Operating System Web Server Software (IIS) PS Software Disk Subsystem No No No Possible Possible Yes The total network traffic is less than 15% of the available bandwidth. There is between 87 MB and 96 MB of memory available. The "Pages/sec" measurement shows a high page fault rate with larger UPDs. The cause is most likely that PS is using memory-mapped files. The Physical Disk perfmon measurements support this conclusion because the disks are busy four times as much with reads than they are with writes. The web server may be a bottleneck as the number of ASPenabled web pages requested increases. PS may be a bottleneck as the number of concurrent users increases. See the analysis for the PS Software above

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APER
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Network
No
The total network traffic is less than 15% of the available
bandwidth.
Memory
No
There is between 87 MB and 96 MB of memory available.
The “Pages/sec” measurement shows a high page fault rate
with larger UPDs. The cause is most likely that PS is using
memory-mapped files. The Physical Disk
perfmon
measurements support this conclusion because the disks are
busy four times as much with reads than they are with writes.
Operating
System
No
Web Server
Software (IIS)
Possible
The web server may be a bottleneck as the number of ASP-
enabled web pages requested increases.
PS Software
Possible
PS may be a bottleneck as the number of concurrent users
increases.
Disk
Subsystem
Yes
See the analysis for the PS Software above