Measures can be divided into several groups according to perfmon objects.
Rate of total bytes transferred by service (received)
Rate of total bytes transferred by service (sent)
Rate of total bytes transferred by service (sum of bytes sent and received)
Current number of connections to the service
Total number of HTTP GET requests received by WWW service
Number of HTTP requests using POST method
Current number of files whose content is in the user-mode cache
Current number of metadata information blocks currently in the user-mode cache.
URI information blocks currently in the user-mode cache
The ratio of user-mode file cache hits to total cache requests (since service startup). Note: This value might be low if the Kernel URI cache hits percentage is high.
The ratio of user-mode metadata cache hits to total cache requests (since service startup)
The ratio of user-mode URI Cache Hits to total cache requests (since service startup)
Applies to static unauthenticated content and dynamic content that is marked as cacheable
All IIS 6.0 measures are available for IIS 7.0/7.5, but in IIS7 there are additional performance counters that give you insight into worker processes level at runtime.
Web Service Measures - Same as IIS 6.0.
Web Service Cache Measures - Same as IIS 6.0.
HTTP requests/sec being processed by the worker process
Current number of requests being processed by the worker process
Number of threads actively processing requests in the worker process
Current number of bytes used by user-mode file cache
Current number of files whose contents are present in user-mode cache
URI information blocks currently in the user-mode cache
Number of metadata information blocks currently present in user-mode cache
Total number of successful lookups in the user-mode metadata cache (since service startup)
Total number of unsuccessful lookups in the user-mode metadata cache (since service startup)
Total number of user-mode metadata cache flushes (since service startup)
Rate of successful lookups in file cache during last sample interval
Rate of unsuccessful lookups in file cache during last sample interval
Rate of successful lookups in metadata cache during last sample interval
Rate of unsuccessful lookups in metadata cache during last sample interval
Rate of successful lookups in URI cache during last sample interval
Rate of unsuccessful lookups in URI cache during last sample interval