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Asked: 2026-05-26T20:37:07+00:00

In SQL Server DMV table dm_exec_requests, should the following be true: total_elapsed_time = cpu_time

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In SQL Server DMV table dm_exec_requests, should the following be true:

total_elapsed_time = cpu_time + wait_time

Thanks,
Rafi

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1 Answer

  1. Editorial Team

    No it is not equal. As stated on MSDN:

    cpu_time – CPU time in milliseconds that is used by the request. Is not nullable.

    and

    wait_time – If the request is currently blocked, this column returns the duration in milliseconds, of the current wait. Is not nullable.

    As You can see, wait_time is duration of current wait and You may have multiple waits during query execution.

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