Compare Signal Waits and Resource Waits
Description
Sample script that compares signal waits and resource waits. Signal waits are the time spent in the runnable queue waiting for the CPU, while resource waits are the time spent waiting for the resource (wait_time_ms minus signal_wait_time_ms). Wait_time_ms represents the total waits. This script requires Microsoft SQL Server 2005.
Script Code
Select signal_wait_time_ms=sum(signal_wait_time_ms) ,'%signal waits' = cast(100.0 * sum(signal_wait_time_ms) / sum (wait_time_ms) as numeric(20,2)) ,resource_wait_time_ms=sum(wait_time_ms - signal_wait_time_ms) ,'%resource waits'= cast(100.0 * sum(wait_time_ms - signal_wait_time_ms) / sum (wait_time_ms) as numeric(20,2)) From sys.dm_os_wait_stats
For online peer support, join the microsoft.public.windows.server.scripting community on the msnews.microsoft.com news server. To provide feedback or report bugs in sample scripts or the Scripting Guide, please contact Microsoft TechNet.
Disclaimer
The sample scripts are not supported under any Microsoft standard support program or service. The sample scripts are provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or delivery of the scripts be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.
