java - How to read only inner segments of a file using NIO -


my batch process needs reading lines huge files (1-3g), each of can processed independently of another. files can have 10-50m rows. thinking of spawning dozen threads each of processing predetermined range of buffers, e.g. t1 read range 0-1, t2 1-2, etc. concurrently. means, of course, t2 needs jump instantly buffer position 2, without reading 0-2.

is type of segmentation of buffered file reading purposes of concurrency possible java nio?

there no point this. cpu may allow multiple threads disk still single-threaded. cause disk thrashing. forget it.


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