max worker threads

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max worker threads

karthikeyan-146504

Ten Centuries

Points: 1055
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May 12, 2009 at 3:38 am

#204597

Hi,
We have dedicated sqlserver database system.
it has 8 processors and 8 GB Ram...
Let me know how many max worker threads we will have for this configuration.
Thanks in advance
Kindest Regards,
karthik

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ajitgadge Old Hand Points: 334 More actions · Answer 1

Default value of max working thread is 255. So anything over 255 will slower down the performance.

If your application is OLTP then i would suggest to keep max dop 0 or if OLAP then incraese the value equal to your physical processor.

Jonathan Kehayias One Orange Chip Points: 26778 More actions · Answer 2

The default configuration for SQL Server should be used unless you have a demonstrated problem that requires a different configuration. This is to include the Max Degrees of Parallelism for OLTP's as a well. Even for transactional work loads, parallel processing is beneficial if the hardware supports it. If you find large CXPACKET wait types during query processing, then you might look at changing the Parallelism setting to adjust, or setting it to MAXDOP 1 using query hints for problemattic queries, but you shouldn't change the setting as a blanket rule.