. NET application performance improvement application skills

I recently spent a lot of time researching. net Performance Improvement issues, on the MS website also found a lot of good information, the following content is estimated to be more or less used, posted here, I hope it will be helpful to everyone's work.

Performance tips for all applications:

• Throw fewer exceptions
• Make chunky cballs
• Design with valuetypes
• Use addrange to add groups
• Trim your working set
• Use for loops for string iteration-Version 1
• Use stringbuilder for complex string manipulation
• Precompile Windows Forms applications
• Use jarged Arrays-Version 1
• Keep Io buffer size between 4kb and 8kb
• Be on the lookout for asynchronous Io opportunities

Performance tips for ASP. NET Applications

Cache aggressively
Use session State only if you need
Use view State only if you need
Avoid sta com
Batch compile
Remove unnecessary HTTP modules
Avoid the autoeventwireup feature
Encode using ASCII when you don't need UTF
Use the optimal authentication procedure

Appendix: Cost of virtual calland allocations

Call type	# CILS/sec
Valuetype non-virtual call	809971805.600
Class non-virtual call	268478412.546
Class virtual call	109117738.369
Valuetype virtual (OBJ method) Call	3004286.205
Valuetype virtual (overridden OBJ method) Call	2917140.844
Load type by newing (non-static)	1434.720
Load type by newing (Virtual Methods)	1369.863

More: Http://msdn.microsoft.com/library/en-us/dnpag/html/scalenet.asp? Frame = true