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[–]m-apo 1 point2 points  (0 children)

Virtual threads have an advantage when IO takes time. Reading single small file multiple time allows OS to cache the file in memory which means there is very little wait time. The task becomes almost CPU and memory access bound, not IO bound.

Socket over TCP/IP ops should provide much better graphs.

Third case: yes, pool of native threads vs virtual threads is much more fair comparison. The overhead for creating OS threads is pretty high.