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Measures reported by AspNewSqlTest
A data provider in the .NET Framework serves as a bridge between an application and a data source. A .NET Framework data provider enables you to return query results from a data source, execute commands at a data source, and propagate changes in a DataSet to a data source.
The .Net Data Provider for SQL Server allows you to connect to a Microsoft SQL Server 7.0, 2000, and 2005 databases, and perform the above-mentioned operations. This test reports many useful metrics that shed light on the health of the interactions between the ASP .Net sever and the SQL server.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| HardConnectsPerSecond |
Indicates the number of actual connections per second that are being made to a database server. |
Connects/Sec |
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| HardDisconnectsPerSecond |
Indicates the number of actual disconnects per second that are being made to a database server. |
Disconnects/Sec |
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| NoOfActiveConPoolsGroups |
Indicates the number of currently active connection pool groups. |
Number |
The value of this measure is controlled by the number of unique connection strings that are found in the AppDomain. |
| NumberOfActiveConPools |
Indicates the number of connection pools that are currently active. |
Number |
When a connection is first opened, a connection pool is created based on matching criteria that associates the pool with the connection string in the connection. Each connection pool is associated with a distinct connection string. If the connection string is not an exact match to an existing pool when a new connection is opened, a new pool is created. Connections are pooled per process, per application domain, per connection string, and, when integrated security is used, per Windows identity.
When using Windows Authentication (integrated security), both the NoOfActiveConPoolsGroups and NumberOfActiveConPools measures are significant. The reason is that connection pool groups map to unique connection strings. When integrated security is used, connection pools map to connection strings and additionally create separate pools for individual Windows identities. For example, if Fred and Julie, each within the same AppDomain, both use the connection string “Data Source=MySqlServer;Integrated Security=true”, a connection pool group is created for the connection string, and two additional pools are created, one for Fred and one for Julie. If John and Martha use a connection string with an identical SQL Server login, “Data Source=MySqlServer;User Id=lowPrivUser;Password=Strong?Password”, then only a single pool is created for the lowPrivUser identity. |
| NumberOfActiveConnections |
Indicates the number of connections that are currently in use. |
Number |
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| NumberOfFreeConnections |
IIndicates the count of unused connections. |
Number |
Ideally, the value of this measure. A very low value indicates excessive connection usage. |
| NumberOfInactiveConPools |
Indicates the number of connection pools that have had no recent activity and are waiting to be disposed. |
Number |
|
| N0OfInactiveConPoolGroup |
Indicates the number of inactive connection pool groups that were waiting to be deactivated i.e., to be pruned. |
Number |
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| NumberOfNonPooledConn |
Indicates the number of active connections that are not using any of the connection pools. |
Number |
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| PooledConnections |
Indicates the number of connections that are managed by the connection pooler. |
Number |
|
| NumberOfReclaimedConn |
Indicates the number of connections that have been reclaimed through garbage collection where Close or Dispose was not called by the application. |
Number |
Not explicitly closing or disposing connections hurts performance. |
| NumberOfStatisConnection |
Indicates the number of connections that are currently awaiting completion of an action and are therefore unavailable for use by any other application. |
Number |
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| SoftConnectsPerSecond |
Indicates the rate at which connections are pulled from the connection pool. |
Connects/Sec |
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| SoftDisconnectsPerSecond |
Indicates the rate at which connections are returned to the connection pool. |
Disconnects/Sec |
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