Should You Use Asynchronous Calls in Your Entity Framework 6 Application?

Entity Framework 6 Asynchronous Call Tutorial

A recent Entity Framework 6 (EF 6) tutorial shows how to make asynchronous calls to a database. This raises questions about the benefits and recommended usage of asynchronous programming in ASP.NET MVC applications.

Advantages of asynchronous calls

Asynchronous operations allow applications to continue execution while waiting for long-running tasks to complete. This improves responsiveness and scalability by reducing the number of threads required. For EF 6, asynchronous calls have the following advantages:

• Improving throughput: Asynchronous calls can improve throughput of high-load applications by eliminating the need for synchronous waits.
• Reduced memory usage: Asynchronous calls allocate less memory than synchronous calls, making them more efficient in memory-constrained environments.

Cost of asynchronous calls

While asynchronous calls provide benefits, they also come with some costs:

• Complexity: Asynchronous code can be more complex than synchronous code, which can make debugging and maintenance more difficult.
• Profiling Challenges: Asynchronous calls make it more difficult to analyze an application's performance using profiling tools.

Choice between synchronous and asynchronous calls

The decision whether to use synchronous or asynchronous calls depends on the specific needs of the application:

• High latency services: Asynchronous calls are a good choice for calling high latency services such as web services or cloud services.
• High concurrency: Asynchronous calls allow a high level of concurrency, which may be beneficial for applications with a large number of simultaneous requests.
• Low-latency services: Typically, for calling low-latency services (such as database calls and file system operations), synchronous calls are preferred.

Summary

Asynchronous calls can provide benefits in ASP.NET MVC applications, but they are not suitable for every scenario. Developers should carefully weigh the benefits and costs of asynchronous programming when choosing between synchronous and asynchronous calls.

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