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SQL
Execution statistics on all queries, procedures, functions & triggers stored in the servers plan cache is displayed here.
By clicking on a row, the full T-SQL can be displayed in the query text box at the bottom of the screen.
The following statistics are displayed in the grid (all times in milliseconds):
- Exe Count (Number of times the statement has been executed)
- Avg Worker Time (Average time the statement takes to execute)
- Avg Cpu Time (Average amount of time the statement uses the CPU)
- Avg Logical Reads (Average time the statement spends reading data)
- Avg Physical Reads (Average time the statement reads from storage)
- Total Worker Time (Time taken for all executions of the statement to execute)
- Total Physical Reads (Time taken for all executions of the statement to read from storage)
- Total Logical Reads (Time taken for all executions of the statement to read data)
Using this information it is simple to identify slow statements that may need performance tuning and also the nature of the issue, whether it is a CPU or an IO problem.
Total times can give a high level picture of the nature of the load on the database.