Does read/write fixed length with java FileChannel improve performance?

Question

I am a newb in Java programing, and confused about IO API. For System API, read/write a entire block works faster than a random bytes. Can Java implements this feature? Or how to optimize performance during Java IO? I am pretty appreciated for anything you comment, thank you very much!

Stu Thompson wrote this answer about a similar problem. He argues that the size of the pre-allocated buffer matters. So I would conclude that yes, a properly sized buffer is contributing to IO performance. — Der_Reparator
– Der_Reparator, Commented Nov 23, 2021 at 12:33

maxkcy · Accepted Answer · 2021-11-23 09:19:07Z

-1

I'm a newb too but you may be able to use arrays and buffers with io. Or use NIO which is based off buffers and is non-blocking, so I believe is faster, but I'm not sure.

answered Nov 23, 2021 at 9:19

maxkcy

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leonbear Over a year ago

Thanks for your answer ! For more detail, if I use a fixed length buffer rather than a random length buffer, will it be more performant ?

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