Startup Options to Tune A Data Warehouse

Hey all,

We're building out a new DW. 64 Bit SQL Server 2008/Windows Server 2008, 48 Cores, 512 GB of RAM, yadda-yadda.

What startup options and trace flags (if any) should be used to tune performance?

We already intend on -E for large extent allocation and are thinking about trace flag 834 for Large Page Support but are wondering if there are others that are commononly used.

more ▼

asked Mar 16, 2010 at 10:03 AM in Default

avatar image

12.1k 30 36 42

(comments are locked)
10|1200 characters needed characters left

3 answers: sort voted first

Try T1118. With -T1118 turned ON, almost all new page allocations are performed from a GAM(Global Allocation Map) page that allocates eight (8) pages (1 extent) at a time to a object as opposed to a single page from an extent for the first eight (8) pages of an object, without the trace flag. This will reduce contention on Tempdb system database and improve performance.

more ▼

answered Mar 19, 2010 at 03:24 AM

avatar image

80 6 8 9

(comments are locked)
10|1200 characters needed characters left

You could try using ...

o T1117 so that all the files in a group will grow evenly (if using multiple).

o If you are using bulk loading you make wish to consider 1224 to help prevent lock escalations (** Make sure that memory is spec'd well).

more ▼

answered Mar 16, 2010 at 12:11 PM

avatar image

10.9k 27 37 37

I like the 1117 TF. Though this is only a last resort measure - right? We are hoping on pre-sizing our files but then... the real world happens.

Mar 18, 2010 at 10:53 AM Blackhawk-17
(comments are locked)
10|1200 characters needed characters left

You could also take a look at the configuration of Sql server FastTrack Datawarehouse at Microsoft. I do not have the link right now, but it is east to find.

more ▼

answered Apr 03, 2010 at 03:45 PM

avatar image

Håkan Winther
16.6k 37 46 58

(comments are locked)
10|1200 characters needed characters left
Your answer
toggle preview:

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

SQL Server Central

Need long-form SQL discussion? SQLserverCentral.com is the place.



asked: Mar 16, 2010 at 10:03 AM

Seen: 3386 times

Last Updated: Mar 16, 2010 at 10:03 AM

Copyright 2018 Redgate Software. Privacy Policy