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Table 1 Association area table information
Column | Description |
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Instances | Name of an instance (as configured during the Installation procedure). |
Server | Name of the server where the instance is installed. |
Requests | Total number of HTTP requests logged for the instance within the selected time frame. |
Concurrent Connections | Number of current connections to the service. This is the sum of both non-anonymous (authenticated) and anonymous (unauthenticated) users. If this number has reached or is approaching the maximum number of allowed connections, the Web service is running at full capacity. |
Memory | Amount of virtual address space reserved by the Web server process. |
Page Faults | Number of times a virtual page was not found in memory. |
CPU Utilization | The time spent, in percentage, processing threads by all CPUs. |
Cache Hit Ratio | The percentage of total requests that were serviced form the Web server output cache. |
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These column headings are derived from counter names. To gain a better understanding of the processes involved and to better tune and improve your Web server's performance, see the counters explanation provided by your specific Web server’s server's documentation. |
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Table 2 Common statistical counters
Counter | Description |
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CPU Utilization | The percentage of time spent processing threads by all CPUs. |
Memory | The amount of virtual address space reserved by the Web server process. |
Page Faults | The number of times a virtual page was not found in memory. |
Access Count | The total amount of HTTP requests logged for the instance within the selected time frame. |
Concurrent Connections | The number of current connections to the service. This is the sum of both non-anonymous (authenticated) and anonymous (unauthenticated) users. If this number has reached or is approaching the maximum number of connections allowed, the Web service is running at full capacity. |
Cache Hit Ratio | The percentage of total requests that were serviced from the Web server output cache. |
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- In the Time Frame list, choose the period of time you want to analyze.
- On the View controls in the Main area, click Overview and analyze the graphs to determine whether excessive load is the source of the performance problems.
- On the View controls in the Main area, click Load.
The Load view displays requests and concurrent connections. Compare these graphs to determine where most of the activity is being generated. - On the Association controls in the Association area, click a counter and check the results.