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Caching frequently used objects, that are expensive to fetch from the source, makes application perform faster under high load. It helps scale an application under concurrent requests. But some hard to notice mistakes can lead the application to suffer...
We have Queues everywhere. There are queues for asynchronously sending notifications like email and SMS in most websites. E-Commerce sites have queues for storing orders, processing and dispatching them. Factory Assembly line automation systems have queues...
Recently after Load Testing my open source project Dropthings , I encountered a lot of memory leak. I found lots of Workflow Instances and Linq Entities were left in memory and never collected. After profiling the web application using .NET Memory Profiler...
Last year at Pageflakes , when we were getting millions of hits per day, we were having query timeout due to lock timeout and Transaction Deadlock errors. These locks were produced from aspnet_Users and aspnet_Membership tables. Since both of these tables...
When your database tables start accumulating thousands of rows and many users start working on the same table concurrently, SELECT queries on the tables start producing lock contentions and transaction deadlocks. This is a common problem in any high volume...
You have a hot ASP.NET+SQL Server product, growing at thousand users per day and you have hit the limit of your own garage hosting capability. Now that you have enough VC money in your pocket, you are planning to go out and host on some real hosting facility...
ASP.NET 2.0 has many secrets, when revealed, can give you big performance and scalability boost. For instance, there are secret bottlenecks in Membership and Profile provider which can be solved easily to make authentication and authorization faster....
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