Tell about the new implementation of map in Go (Swiss Tables). What collision resolution methods exist?

Since version 1.12, Go has implemented a new hash table implementation in maps, known as "Swiss Tables" (similar to the implementation in C++ Abseil). Key features:

• Uses open addressing with linear probing and an additional control byte for each slot, which speeds up search and reduces memory accesses.
• Control bytes allow quick filtering of mismatches during key search.

Collision resolution methods:

• In Go, maps use open addressing, where upon collision, neighboring cells are sequentially probed (linear probing) until a free slot or the desired key is found.
• Unlike chaining, where collisions are resolved with linked lists, here all elements are stored in a single array, improving data locality.

This approach ensures high performance and efficient memory usage, especially with a large number of elements.