Common performance bottlenecks
Let’s look at some common reasons that performance could be degraded and how you might address them. These are by no means applicable to every situation, but they are well-known bottlenecks:
- Database access: The bottleneck is caused by slow database queries or inefficient use of database connections. To mitigate this, do the following:
- Use asynchronous database operations (
async/await). - Optimize SQL queries and use proper indexing. Look at any
WHEREclauses orJOINoperations that might be taxing the system. - Implement connection pooling to reduce the number of times new connections need to be opened.
- Use a caching system such as ASP.NET’s
IMemoryCachefor frequently accessed data.
- Use asynchronous database operations (
- I/O operations: The bottleneck is due to blocking I/O operations, such as file or network access. To mitigate this, do the following:
- Use asynchronous I/O operations.
- Minimize disk and network I/O. Where possible, retrieve commonly required data from memory...
