Best buffer size

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u0206397

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When doing buffered file I/O.

I see programming textbooks and code samples using random sizes. Some use 100 bytes, 512 bytes, 1k, 4k, 8k and some several megabytes.

What's the best for optimal performance? :s11:
 
davidktw

davidktw

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u0206397 said:
When doing buffered file I/O.

I see programming textbooks and code samples using random sizes. Some use 100 bytes, 512 bytes, 1k, 4k, 8k and some several megabytes.

What's the best for optimal performance? :s11:
Click to expand...

benchmark it. there is no best size. it depends on your kernel, and I/O pattern of your software.
 
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