DBAmon monitors SSRS (Microsoft SQL Server Reporting Server) as follows:

1. SSRS Performance Counters

   SSRS provides Windows Performance Counters to provide performance information about an instance of SSRS. DBAmon collects data from these counters and instantiates the readings as DBAmon PERF_SSRS_* Performance Metrics. Here is a good MS WWW page describing SSRS Performance Counters. As with all DBAmon Performance Metrics, you can set thresholds with which will you will be notified of exceptions.
    

   SSRS Windows Performance Counter	DBAmon Performance Metrics
   \ReportServer:Service\Memory Pressure State	PERF_SSRS_Mem_Pressure_State
   \ReportServer:Service\Memory Shrink Amount	PERF_SSRS_Mem_Shrink_Bytes
   \ReportServer:Service\Tasks Queued	PERF_SSRS_Tasks_Queued
   \ReportServer:Service\Active Connections	PERF_SSRS_Active_Connections
   \ReportServer:Service\Bytes Received/Sec	PERF_SSRS_Bytes_Rcvd_PS
   \ReportServer:Service\Bytes Sent/Sec	PERF_SSRS_Bytes_Sent_PS
   \ReportServer:Service\Errors/Sec	PERF_SSRS_Errors_PS
   \ReportServer:Service\Errors Total	PERF_SSRS_Errors_Tot
   \ReportServer:Service\Requests Executing	PERF_SSRS_Reqs_Executing
   \ReportServer:Service\Requests Not Authorized	PERF_SSRS_Reqs_AuthFail
   \ReportServer:Service\Requests/Sec	PERF_SSRS_Reqs_PS
   \ReportServer:Service\Requests Total	PERF_SSRS_Reqs_Total
   \ReportServer:Service\Requests Rejected	PERF_SSRS_Reqs_Rejected_503

   
    
   Note that DBAmon takes a sample of each of these counters on every DBAmon iteration, and thus there are snapshots of points in time.

   Two metrics that appear to be particuarly interesting are PERF_SSRS_Mem_Pressure_State and PERF_SSRS_Tasks_Queued. If PERF_SSRS_MEM_Pressure_State is > 0, then this SSRS instance is under memory pressure (see the above URL for details). If PERF_SSRS_Tasks_Queued is > 0, then tasks are queued.

2. SSRS ExecutionLog2 View

   SSRS also provides a view called ExecutionLog2 which is a log of SSRS requests. Here is a good Description of ExecutionLog2. DBAmon collects the 20 most recent rows from this view on every iteration and saves this in the WWW "Drilldown" data. It is not saved historically.

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This Document: http://dbamon.com/misc/SSRS.shtml