IIS Web Cache Test

This test monitors the IIS web server's web cache and reports critical performance metrics pertaining to it.

Note that this test will not work on Windows 2000.

Target of the test : A web site supported by a web server

Agent deploying the test : An internal agent;

Outputs of the test : One set of results for every web site monitored

Configurable parameters for the test
TEST PERIOD - How often should the test be executed Host - The host for which the test is to be configured Port - the port to which the specified host listens

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
File cache memory usage:	Indicates data used for the user-mode file cache.	KB	An unusually high value may indicate a sudden increase of memory usage in file cache.
Files cached:	Indicates the number of files, the content of which is in the user-mode cache.	Number
Metadata cached:	Indicates the metadata information blocks currently in the user-mode cache.	Number
URIs cached:	Indicates the number of URI information blocks in the user-mode cache.	Number
File cache hits:	Indicates the number of successful lookups in the user-mode file cache during the last measurement period.	Number	A consistent decrease in the value of this measure is indicative of an increase in direct disk accesses. This is a cause for concern.
File cache misses:	Indicates the number of unsuccessful lookups in the user-mode file cache during the last measurement period.	Number	A consistent increase in the value of this measure is indicative of an increase in direct disk accesses. This is a cause for concern.
File cache hit ratio:	Indicates the ratio between the file cache hits and file cache misses.	Percent	A very low percentage indicates that files requested are being directly accessed from the disk and not from the file cache.