Omar AL Zabir (MVP)

Web Application performance optimization tips

Yesterday I took a class on website performance optimization. I would like to share what I did in the class.   I took the class in a company which has a local blog site. It has serious performance issue because of both hardware and software limitations.

100% CPU, 100% IO, a near death experience for SQL Server 2005 and us

For last two weeks we were having pretty hard time at Pageflakes. The database server was having 100% CPU, and 100% IO usage most of time. It was running hot, almost about to go to a coma. It's a 64 bit Dual Core Dual Xeon Dell server

How to use ASP.NET 2.0 Profile object from web service code

You have started to use ASP.NET 2.0 Profile Provider and you are very happy with it. All your .aspx pages are full of "Profile.Something". You also introduced a lot of new properties on the profile object via web.config. Then you added a new web service.

Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

When you turn on web garden (multiple process per application pool) or go into multi server load balance deployment where servers are serving the same website, you will have Forms Authentication problem. Users will get automatically logged out or see