SQL Galaxy (10/13/2014)
I want to know this values (47%), is it Acceptable value? or can we decrease that value?
It's a value. There's not much of acceptable or unacceptable about it. There's normal for your system and not normal. If it's not normal for your system, then you need to identify what changed.
You can also look at tuning inefficient queries and making sure that you have indexes to support them
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