Instance using only one Processors even we configured all the Processors to that Instance.


 

dear all


i have 6 instance running on dev server.we configured instance use  processors,(using ent manager)
but if ran procedure/query on database instance using 1 processor.

what may cause.  

sponguru

hi,

do mean run 1 specific query or stored procedure , inspecting how many processors used 1 query/procedure?

the optimizer in sql server not pick parallelized plan (i.e. use more 1 thread) queries because not queries benefit parallelized plan. because there overhead synchronizing threads, reasonable amount of data or work has involved optimizer consider a parallelized plan.

or saying during normal workload, lots of queries hitting sql server, 1 processor used?

/elisabeth

elisabeth rédei | www.sqlserverland.com | http://www.linkedin.com/elisabethredei


SQL Server  >  Getting started with SQL Server



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