How to Efficiently Sort a Large Array of Structs in C?

[Techi11]

I have a large array of structs, and I need to sort them based on a specific field within the struct. What's the most efficient way to do this in C? Should I use a custom sorting function or a standard library function like qsort? Any tips for optimizing the sorting process, especially when dealing with a large dataset?"

This question addresses a common task in C programming and invites experienced developers to share their insights on optimizing sorting algorithms and techniques.