SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Growth in tempdb and more RAM


Growth in tempdb and more RAM

Author
Message
Golfer22
Golfer22
SSC-Enthusiastic
SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)SSC-Enthusiastic (184 reputation)

Group: General Forum Members
Points: 184 Visits: 96
In general, would adding more memory reduce the growth of the tempdb during general operations of SQL Server?
Bhuvnesh
Bhuvnesh
SSCertifiable
SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)SSCertifiable (5.4K reputation)

Group: General Forum Members
Points: 5426 Visits: 4076
From MSDN
In a heavily loaded system under memory pressure, queries with merge join, sort and bitmap in the query plan can drop the bitmap when the queries do not get the minimum required memory for the bitmap. This can affect the query performance and if the sorting process can not fit in memory, it can increase the usage of worktables in tempdb database, causing tempdb to grow. To resolve this problem add physical memory or tune the queries to use a different and faster query plan.
see this link Optimizing tempdb Performance

-------Bhuvnesh----------
I work only to learn Sql Server...though my company pays me for getting their stuff done;-)
GilaMonster
GilaMonster
SSC Guru
SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)SSC Guru (89K reputation)

Group: General Forum Members
Points: 89569 Visits: 45284
Maybe. Depends why TempDB's growing.

If it's due to hash and sort spille, adding memory may help (optimising queries may help more). If it's due to temp tables and table variables, more memory won't help the TempDB size.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search