Pattern & Practices

WSSRA

Rajendra Rawat — Thu, 28 Jul 2005 17:20:00 GMT

Windows Server System Reference Architecture is a Documentation Set that Helps in Design and Deployment of IT Infrastructure or IT Solutions Using Microsoft Technologies.

WSSRA contains:

Overview Documents
Contains Introduction to WSSRA Documents, Standards and Conventions Followed in the Documentation and How the Documentation Can be Leveraged.
Reference Blueprints
Contains Architectural (Infrastructure Areas Such as Security, Networking, Storage, Management etc.) and Service (Design Options Available for a Given Set of IT Services) Blueprints.
Implementation Guides
Contain Reference Blueprints for Implementation of a Solution. The Reference Blueprints are Lab-Tested for Conformation to Design and Architecture Standards.

Tips for a Successful MSFT Presentation

Rajendra Rawat — Wed, 29 Jun 2005 00:31:00 GMT

If you havn't already this a Must read article Scott Hanselman’s Tips for a Successful MSFT Presentation

JIT Optimization Myth

Rajendra Rawat — Tue, 10 May 2005 23:30:00 GMT

Which one of these three loops is the most efficient in C#?

1. Foreach over an int array

foreach ( int i in MyArray)
Console.WriteLine( i.ToString( ));

2. Simple for over an int array

for ( int i = 0; i < MyArray.Length; i++ )
Console.WriteLine( MyArray[i].ToString( ));

3. For over an int array, hoisting out the length value

int len = MyArray.Length;
for ( int i = 0; i < len; i++ )
Console.WriteLine( MyArray[i].ToString( ));

Do you think you will get a speed boost by moving the length calculation out and saving it to a temporary variable, as in the third option?

WRONG!

In Fact:

Hoisting in third option should be avoided. As the JIT looks for the pattern in version 1 and 2, and knows how to optimize it. If you pull the value out into a temporary variable , JIT may not optimize it.
see this blog http://blogs.msdn.com/brada/ for more details

For more performance tips-n-tricks and JIT/GC basics, read this article
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/dotnetperftips.asp