In Lock splitting we use different locks for different parts of the

application. In Lock striping we use multiple locks to protect

different parts of the same data structure.

ConcurrentHashMap class of Java internally uses different buckets

to store its values. Each bucket is chosen based on the value of key.

ConcurrentHashMap uses different locks to guard different buckets.

When one thread that tries to access a hash bucket, it can acquire the

lock for that bucket. While another thread can simultaneously

acquire lock for another bucket and access it. In a synchronized

version of HashMap, the whole map is has one lock.

Lock striping technique gives better performance than Synchronizing

the whole data structure.

https://www.geeksforgeeks.org/what-is-lock-striping-in-java-concurrency/