Logical Partitioning -How much %age improvement.

Hello All,
I want to know if we use Logical partitioning for cube then how much %age performance will be improve and how about its depends on loaded data into the cube.
Q1:Logical partitioning of cubes - How much % of performance can be expected.
Q2:How much % of performance improvement can be expected if say no. of records in cube is half the current no. of records.
Thanks in advance,
Bandana.

Bandana,
I would say that the question is incorrect ..( Carl Sagan..? )
First - the percentage improvement depends on the amount of data - if my cube has 100 records and I do a logical partition I will not see any improvement - but then ramp up the numbers to 1 billion records - I see very significant improvements..
Lets say your cube has data for 2010 and 2011 and you want to logically separate out the data . Typically logical partitions would mean separating out the data into separate cubes by year / country etc - any partition that is not using the default partitioning of 0FISCPER / 0CALMONTH etc...
If this is not what you are looking at or if I am wrong - please correct me here...
Now if you split your cube into two parts - one cube for 2010 and one for 2011 - the time required to access the data in the 2010 cube decreases - because it has a cube of its own - this is the benefit you get in terms of data access times - but then this is not going to be a 100% improvement because you have a cube for each year... it depends to a large extent on the query also - but in almost all cases you will have a performance benefit.
I am not able to understand your second question.

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