Count Hit Rate

Does anyone know any software to count the hit rate?
I have installed the Microsoft site server, IIS and SQL server on NT platform, but I donno how to count the hit rate.
Would anyone help me?
Thx a lot!
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Use Performance monitor.
Run Start -> Programs -> Administrative Tools -> Performance monitor
You can see the result of performance counters as
Chart, Alert, Log or Report. Chart is by default.

If you want to monitor cache hit ratio for SQL Server (for example)
you may choose "SQLServer:Cache Manager" and counter "Cache Hit Ratio".

It's brief description from msdn:

The percentage of time that a requested data page was found in the data
cache (instead of being read from disk.
Higher is better. 99% is desirable. If the percentage consistently
averages below 97%, you should increase the amount of memory
allocated to SQL Server.

If you want to monitor hit ratio for IIS, choose Web Service and
counters as you need.

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Microsoft SQL Server

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