When it comes to delivering server solutions with Windows Server and SQL Server, speed is your friend (as we used to say in the submarine service).
More speed means more things can happen in a given period of time. If more things can happen in a given period of time, then you can derive greater scalability. Duh, Winning!
Okay, this stuff is obvious so let’s move on.
Have you ever noticed when you’ve finished installing your shiny new Windows Server 2008 R2 box, the default Power Plan is set to “Balanced?” Guess what kind of performance and scalability you get when you decide to “Go Green” and save the world with a “Balanced” power plan? Needless to say, you’re not making the most of the high-powered CPUs you just paid big money for.
So how does this relate to SQL Server and reducing I/O contention?
Would it surprise you to know that the amount of time your CPU’s spend processing your queries could actually double with a Balanced plan? If it takes more CPU time to execute a query, then imagine all those Merge Agent processes locking and blocking each other as they try to perform DML operations on the change tracking tables.
So what’s the takeaway here?
Set your Windows Server 2008 R2 power plan to High Performance! If you’re part of a Windows Domain and you need to make this setting stick, have your sys admin enforce this setting on all your SQL Servers via Group Policy.
Go fast or go home because your users care about performance.
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