In what scenarios is it recommended to use the sync.Map data structure in Go?

The sync.Map in Go is recommended for scenarios where:

• There is a need for concurrent access to a map from multiple goroutines without explicit use of mutexes.
• Read operations are frequent, and writes are less common.
• High performance is required with a large number of parallel operations.

sync.Map is optimized for cases where data is read more often than it is modified. Unlike a regular map with a mutex, sync.Map uses internal mechanisms to minimize locking.

Example usage:

var m sync.Map

// Store
m.Store("key", "value")

// Load
if val, ok := m.Load("key"); ok {
    fmt.Println(val)
}

If you have a simple case with few goroutines or frequent modifications, it is better to use a regular map with sync.Mutex for access control.