Footnotes

Chapter 1

1. FIND/SVP Strategic Research Division Report, 1992

Appendix C

1. The default setting of 30 seconds for ObjhectCacheTTL is too small to allow the IIS file cache to grow this large. See the "Performance Settings" section.

2. Note: all medium and high-isolation ISAPI and ASP applications run in instances of dllhost.exe. However, other COM+ server applications also run in their own instances of dllhost, so some dllhosts may nothing to do with IIS.

3. Context switches/request is calculated by dividing System: Context Switches/sec by requests/sec, where requests/sec is a counter such as Web Service: CGI Requests/sec or Active Server Pates: Requests/Sec. It is quite normal for System: Context Switches/sec to be several hundred on an idle machine and a few thousand on a busy machine. If the total context switch rate rises above (5–10,000*number of CPUs), you have a problem.