4 ms·

In my experience I saw a bunch of novice devs using parallel streams for N<=100 lists and such, for much worse performance. Its certainly not foolproof either

• marginalia_nu 4y ago
  To be fair, whether parallel streams is useful isn't a function of N alone, but the time each operation takes. If it's a nontrivial calculation, then by all means. Although parallel streams are seldom the best option in terms of performance even for large N. They may often be faster than sequential processing for large N, but a more thought out approach is almost always faster still, often significantly so.