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JavaAdvanced#memory#gc
JavaAdvanced#streams
What is a parallel stream and when should you avoid it?
A parallel stream splits work across multiple threads using the common ForkJoinPool, useful for CPU-bound work on large datasets. Avoid it for small datasets (overhead outweighs benefit), I/O-bound tasks, or operations with shared mutable state.
Example
long count = IntStream.range(0, 10_000_000).parallel().filter(n -> n % 2 == 0).count(); // beneficial for large CPU-bound computation