Long running MDX-query

Question

Table [Summary Requests] (count: 102 131):
Id Int primary key
RequesterFullNameId Int
Dimesion [Dm Requester Full Names] (count: 50 124):
Id Int primary key
Title VARCHAR(1000)
Dimesion [Dm Date] (count: 1 306):
FullDate DateTime первичный ключ
Year Int
1) Query execution lasts
5 seconds. Is it normal or not?
2) Аre there ways to reduce the query execution time?
Query example:
with
member [Measures].[XtraPivotGrid 1505778211 Sort] as '[Dm Date].[Year].currentmember.member_value'
member [Measures].[XtraPivotGrid 1025407302 Sort] as '[Measures].[Summary Requests Count]'
select
non empty { { [Dm Date].[Year].[All], { order({{[Dm Date].[Year].[Year].members}}, [Measures].[XtraPivotGrid 1505778211 Sort], asc)} }  * { [Measures].[Summary Requests Count]}} dimension properties MEMBER_UNIQUE_NAME,MEMBER_TYPE,MEMBER_VALUE  on
columns,
non empty { [Dm Requester Full Names].[Title].[All], { order({{[Dm Requester Full Names].[Title].[Title].members}}, [Measures].[XtraPivotGrid 1025407302 Sort], desc)} }
dimension properties MEMBER_UNIQUE_NAME,MEMBER_TYPE,MEMBER_VALUE  on rows
from [Elicense Reports]
where
( [Is Deleted].[Title].&[Нет] )

Answer 1

Hi Captainsir,
According to your description, the query execution lasts  5 seconds before return the results, and you want to know if it is normal or not, right?
In your query, you used CrossJoin function to join multiple dimensions which might cause the performance issue. If you cross-join medium-sized or large-sized sets (e.g., sets that contain more than 100 items each), you can end up with a result set that contains
many thousands of items—enough to seriously impair performance. For the detail information, please see:
http://sqlmag.com/data-access/cross-join-performance
Here is a blog which describe ways of improving MDX performance and improvements with MDX, please see:
http://blogs.msdn.com/b/azazr/archive/2008/05/01/ways-of-improving-mdx-performance-and-improvements-with-mdx-in-katmai-sql-2008.aspx
Hope this helps.
Regards,
Charlie Liao
TechNet Community Support