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


BLOCKING & PERFORMANCE ISSUES IN SQL SERVER 2012


BLOCKING & PERFORMANCE ISSUES IN SQL SERVER 2012

Author
Message
vishalsurya50
vishalsurya50
SSC Rookie
SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)SSC Rookie (26 reputation)

Group: General Forum Members
Points: 26 Visits: 772
Hi ,

Last week we increased RAM and processors. now ,In our environment we have 2 processors,6 cores and hyper threading present ,so a total of 24 processors (6*2*2) available with 48GB RAM. I gave 28gb for sql as max server memory. in event viewer after a day i got insufficient memory to run the query. There are lot of blockings so that application gets hanged and nothing is working fine. Could anyone suggest me in which aspect i should check the performance of sql.

Now i have increased as 38 gb out of total of 48 gb for sql server.

Server:sql server 2012 enterprise
OS:Windows server 2012 standard

In our applications we have long running threads with many joins ,but before there was no issues like blocking .....we face once we increased RAM and processors ...Need to resolve blockings and run apps fastly .

Any one please help me !!!!
TheSQLGuru
TheSQLGuru
SSCertifiable
SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)SSCertifiable (5.9K reputation)

Group: General Forum Members
Points: 5935 Visits: 8296
vishalsurya50 (6/11/2013)

Hi ,

Last week we increased RAM and processors. now ,In our environment we have 2 processors,6 cores and hyper threading present ,so a total of 24 processors (6*2*2) available with 48GB RAM. I gave 28gb for sql as max server memory. in event viewer after a day i got insufficient memory to run the query. There are lot of blockings so that application gets hanged and nothing is working fine. Could anyone suggest me in which aspect i should check the performance of sql.

Now i have increased as 38 gb out of total of 48 gb for sql server.

Server:sql server 2012 enterprise
OS:Windows server 2012 standard

In our applications we have long running threads with many joins ,but before there was no issues like blocking .....we face once we increased RAM and processors ...Need to resolve blockings and run apps fastly .

Any one please help me !!!!


1) If you want your system fixed NOW, hire a performance tuning consultant. To do anything else is to fail in your primary objective

2) Did you also add in SSDs by any chance?

3) There are MANY things that could be at play here. But I would start with FileIO stall analysis, wait stats analysis and sp_whoisactive

4) Re-read #1 above!!!

Best,

Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru at GMail
GilaMonster
GilaMonster
SSC-Forever
SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)

Group: General Forum Members
Points: 47088 Visits: 44340
Inefficient queries + more CPUs = more blocking. Seen that more than once.

Tune the queries, tune the indexes.
http://www.simple-talk.com/sql/performance/finding-the-causes-of-poor-performance-in-sql-server,-part-1/
http://www.simple-talk.com/sql/performance/finding-the-causes-of-poor-performance-in-sql-server,-part-2/


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


Grant Fritchey
Grant Fritchey
SSCoach
SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)SSCoach (17K reputation)

Group: General Forum Members
Points: 17524 Visits: 32250
Yeah, I'm with everyone else. Really sounds like query tuning needs to happen immediately. Sometimes throwing hardware at a problem doesn't make it better. In addition to Gail's articles, check out the books listed below.

----------------------------------------------------
The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood...
Theodore Roosevelt

The Scary DBA
Author of: SQL Server Query Performance Tuning and SQL Server Execution Plans
Product Evangelist for Red Gate Software
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