Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 

Get your favorite SSC scripts directly in SSMS with the free SQL Scripts addin. Search for scripts directly from SSMS, and instantly access any saved scripts in your SSC briefcase from the favorites tab.
Download now (direct download link)

Signal and Resource Waits

By SQL Scripts Manager dev team,

From "SQL Server DMV Starter Pack" by Louis Davidson and Tim Ford.

 

Calculates the signal and resource waits as a percentage of overall wait time.

As Signal waits are the time waiting for the CPU to service a thread, if the signal wait time is about 10-15% then your CPU may be under pressure.

These wait stats are cumulative since SQL started, so will not give a result that reflects CPU loading over the previous few minutes. You can use DBCC to clear the wait stats and get a better snapshot of the current CPU loading state.

DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR)

 

You can run this in SQL Script Manager using the 'Clear Wait Statistics' scripts

Total article views: 1353 | Views in the last 30 days: 6
 
Related Articles
SCRIPT

Clear Wait Statistics

Clears the wait statistics so that the results of the 'Signal and Resource Waits' scripts are more r...

BLOG

Signal Waits and Resource Waits...a clarification

  Signal Waits vs. Resource Waits During my presentation at SQLSaturday#59, I spoke about the cat...

FORUM

clearing SQL cache

clearing SQL cache

FORUM

Clearing/Releasing data files

Clearing/Releasing data files

FORUM

Clearing LOD file (126 GB)

Clearing LOG file (126 GB)

Tags
dmv    
statistics    
 
Contribute